HP Nx7400 HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid
HP Nx7400 - Compaq Business Notebook Manual
UPC - 882780786653
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- HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 1
HP Compaq nx7300 and nx7400 Notebook PC Document Part Number: 410775-002 March 2007 This guide is a troubleshooting reference used for maintaining and servicing the computer. It provides comprehensive information on identifying computer features, components, and spare parts; troubleshooting computer - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 2
be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein. Maintenance and Service Guide HP Compaq nx7300 and nx7400 Notebook PC Second Edition: March 2007 First Edition: May 2006 Document Part Number: 410775-002 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 3
or rugs or clothing, to block airflow. Also, do not allow the AC adapter to contact the skin or a soft surface, such as pillows or rugs or clothing, during operation. The computer and the AC adapter complies with the user-accessible surface temperature limits defined by the International Standard - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 4
2.1 Starting Computer Setup 2-1 Navigating and selecting in Computer Setup 2-2 Restoring Factory Settings in Computer Setup. . . . . 2-3 File Menu 2-4 Security Menu 2-5 Diagnostics Menu 2-7 System Configuration Menu 2-7 2.2 Troubleshooting Flowcharts 2-10 Maintenance and Service Guide iii - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 5
3-1 3.2 Computer Major Components 3-2 3.3 Plastics Kit 3-14 3.4 Mass Storage Devices 3-16 3.5 Miscellaneous (Not Illustrated 3-18 3.6 Sequential Part Number Listing 3-21 4 Removal and Replacement Preliminaries 4.1 Tools Required 4-1 4.2 Service Considerations 4-2 Plastic Parts 4-2 Cables - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 6
and Replacement Procedures 5.1 Serial Number 5-2 5.2 Disassembly Sequence Chart 5-3 5.3 Preparing the Computer for Disassembly 5-5 5.4 Hard Drive 5-7 5.5 Computer Feet 5-11 5.6 Optical Drive 5-12 5.7 External Memory Module 5-14 5.8 Bluetooth Module 5-17 5.9 Keyboard 5-19 5.10 Thermal Plate - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 7
Contents 6 Specifications A Screw Listing B Backup and Recovery in Windows Vista C Backup and Recovery in Windows XP D Display Component Recycling E Connector Pin Assignments F Power Cord Set Requirements Index Maintenance and Service Guide vi - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 8
1 Product Description The HP Compaq nx7300 and nx7400 Notebook PC offers advanced modularity, Intel® Core™ Duo, Core Solo, Celeron®, and Celeron M processors, and extensive multimedia support. HP Compaq dx7300 and nx7400 Notebook PC Maintenance and Service Guide 1-1 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 9
are available, varying by computer model: ❏ 15.4-inch, WSXGA+, TFT (1680 × 1050) with over 16.8 million colors with BrightView ❏ 15.4-inch, WSXGA+, TFT (1680 × 1050) with over 16.8 million colors ❏ 15.4-inch, WXGA+, TFT (1440 × 900) with over 16.8 million colors 1-2 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 10
/b/g or 802.11b/g Wireless LAN (WLAN) device ■ Support for one Type I or Type II PC Card, with support for both 32-bit (CardBus) and 16-bit PC Cards, varying by computer model ■ External 65-watt AC adapter with 3-wire power cord ■ 6-cell Li-Ion battery ■ Stereo speakers ■ Volume up, volume mute, and - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 11
Product Description ■ Connectors: ❏ Accessory battery ❏ Audio-in (microphone) ❏ Audio-out (headphone) ❏ Docking connector ❏ External monitor ❏ IEEE 1394 ❏ RJ-11 (modem) ❏ RJ-45 (network) ❏ S-Video-out ❏ Smart Adapter power ❏ Three Universal Serial Bus (USB) v. 2.0 1-4 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 12
RTC battery). 2. Wait approximately 5 minutes. 3. Replace the RTC battery and reassemble the computer. 4. Connect AC power to the computer. Do not reinsert any batteries at this time. 5. Turn on the computer. All passwords and all CMOS settings have been cleared. Maintenance and Service Guide 1-5 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 13
Product Description 1.3 Power Management The computer comes with power management features that extend battery operating time and conserve power. The computer supports the following power management features: ■ Standby ■ Hibernation ■ Setting customization by the user ■ Hotkeys for setting the level - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 14
(LAN) device and/or a Bluetooth® device, is turned on. ■ On: The computer is on. ■ Blinking: The computer is in standby. ■ Blinking rapidly: An HP Smart AC Adapter with a higher power rating should be connected. ■ Off: The computer is off or in hibernation. Maintenance and Service Guide 1-7 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 15
. If the computer is not connected to an external power source, the light is turned off until the battery reaches a low-battery condition. Drive light Blinking green: The hard drive or optical drive is being accessed. Display release latch Opens the computer. 1-8 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 16
sound when connected to optional power stereo speakers, headphones, ear buds, a headset, or television audio. Audio-in (microphone) jack Connects an optional computer headset microphone, stereo array microphone, or monaural microphone. Optical drive Supports an optical disc. The type of optical - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 17
Item 1 2 3 Table 1-3 Rear Panel Components Component Function Battery bay Holds a battery. Smart adapter power connector Connects an AC adapter or an optional power adapter. External monitor port Connects an optional VGA external monitor or projector. 1-10 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 18
Left-Side Components Item 1 2 Table 1-4 Left-Side Components Component Function Security cable slot Attaches an optional security cable to the computer. Ä Security solutions are designed to act as deterrents. These deterrents may not prevent a product from being mishandled or stolen. RJ - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 19
to the computer using a standard USB cable, or connects an optional External MultiBay II to the computer. The MultiBay II must also be connected to an external power source. PC Card slot Supports optional Type I or Type II 32-bit (CardBus) or 16-bit PC Cards. 1-12 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 20
Product Description The standard keyboard components of the computer are shown below and described in Table 1-5. Standard Keyboard Components Maintenance and Service Guide 1-13 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 21
7 8 Table 1-5 Standard Keyboard Components Component Function f1 to f12 key. Windows logo key In Windows, displays the Windows Start menu. Windows applications key In Windows, displays Moves the cursor around the screen. Keypad keys In Windows, can be used like the keys on an external - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 22
Product Description The computer top components are shown below and described in Table 1-6. Top Components Maintenance and Service Guide 1-15 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 23
already be set up. Caps lock light On: caps lock is on. Num lock light On: num lock or the numeric keypad is on. Volume mute button Mutes or restores speaker volume. Volume down button Decreases speaker volume. Volume up button Increases speaker volume. 1-16 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 24
Product Description The computer TouchPad components shown below and described in Table 1-7. TouchPad Components Maintenance and Service Guide 1-17 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 25
Item 1 2 3 Table 1-7 TouchPad Components Component Function TouchPad Moves the pointer and selects or activates items on the screen. Can be set to perform other mouse functions, such as scrolling, selecting, and double-clicking. TouchPad buttons Function like the left, middle, and right - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 26
HP Ultra-Capacity Battery or HP Extended Life Battery. Memory module compartment Contains one memory slot that supports replaceable memory modules. Hard drive bay Holds the primary hard drive. Exhaust vents Provides airflow to cool internal components. Docking connector Connects the computer - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 27
disassembly steps. The system board provides the following device connections: ■ Audio ■ Display ■ Hard drive ■ Intel Core Duo, Core Solo, Celeron, and Celeron M processors ■ Keyboard and TouchPad ■ Memory modules ■ Mini Card module ■ Modem module ■ Optical drive ■ PC Card ■ Smart Adapter AC adapter - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 28
this guide may not be supported by your computer. ✎ Pointing devices are not supported in Computer Setup. You must use the keyboard to navigate and make selections. ✎ An external keyboard connected by USB can be used with Computer Setup only if USB legacy support is enabled. Maintenance and Service - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 29
Because Computer Setup is not Windows-based, it does not support the TouchPad Computer Setup screen, press esc. ❏ To view navigation information, press f1. ❏ To change the language, press f2. 2. Select the File, Security, Diagnostics, or System Configuration menu. 2-2 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 30
use the arrow keys to select File > Save Changes and Exit. Then follow the instructions on the screen. Your preferences go into effect when the computer restarts. ✎ Your password settings and security settings are not changed when you restore the factory settings. Maintenance and Service Guide 2-3 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 31
and the batteries in the system. ■ View specification information for the processor, cache and memory size, system ROM, video revision, and keyboard controller version. Restore defaults Replace the configuration settings in Computer Setup with the original factory settings. (Password settings and - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 32
the computer. Enable/disable support for smart card and Java™ Card power-on authentication. ✎ Power-on authentication for smart cards is supported only on computers with optional smart card readers. ✎ You must have an administrator password to change this setting. Maintenance and Service Guide 2-5 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 33
Troubleshooting Select TPM Embedded Security System IDs Disk Sanitizer Table 2-2 Security Menu (Continued) To do this Enable/disable support for TPM (Trusted Platform Module) Embedded Security, which protects the computer from unauthorized access to owner functions available in Embedded Security - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 34
boot. ■ Enable/disable internal network adapter boot and set the boot mode (PXE or RPL). ■ Enable/disable MultiBoot, which sets a boot order that can include most boot devices in the system. ■ Set the Express Boot Popup delay in seconds. ■ Set the boot order. Maintenance and Service Guide 2-7 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 35
, which helps to improve computer security. ■ Enable/disable LAN Power Save. When enabled, saves power by turning off the LAN when not in use. ■ Enable/disable SATA Native Mode. ■ Enable/disable Dual Core CPU. ■ Enable/disable Secondary Battery Fast Charge. 2-8 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 36
Windows direct application launcher. ■ Enable/disable HP Lockout. ■ Enable/disable embedded WWAN Device Radio. ■ Enable/disable embedded WLAN Device Radio ■ Enable/disable embedded Bluetooth® disable the optical disk drive. ■ Enable/disable the network controller. Maintenance and Service Guide 2-9 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 37
15-No Audio, Part 1" 2.16 "Flowchart 2.16-No Audio, Part 2" 2.17 "Flowchart 2.17-Nonfunctioning Device" 2.18 "Flowchart 2.18-Nonfunctioning Keyboard" 2.19 "Flowchart 2.19-Nonfunctioning Pointing Device" 2.20 "Flowchart 2.20-No Network/Modem Connection" 2-10 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 38
Initial Troubleshooting Begin troubleshooting. N Is there power? Y Go to "Flowchart 2.2-No Power, Part 1." N Beeps, LEDs, or error messages? Y N Is there video? (no boot) Y N Is the OS loading? Y N Is there sound? Y Check LED board, speaker connections. Y Go to "Flowchart 2.6-No Video, Part - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 39
Troubleshooting Flowchart 2.2-No Power, Part 1 No power (power LED is off). Remove from docking device (if applicable). N Power up on battery power? Y Reset power.* N Power up on battery power? Y Go to "Flowchart 2.3-No Power, Part 2." N Power up on AC power? Y Reset power.* N Power up on - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 40
in battery socket and clean if necessary. Y Power on? Done N Check battery by recharging it, moving it to another computer, or replacing it. N Power on? Y Replace power supply (if applicable). N Done Power on? Y Go to "Flowchart 2.4-No Power, Part 3." Done Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 41
Troubleshooting Flowchart 2.4-No Power, Part 3 Continued from "Flowchart 2.3-No Power, Part 2." Plug directly into AC outlet. Y Power LED on? N Reseat AC adapter in computer and at power source. Y Power on? N N Power outlet active? Y Replace power cord. Y Power on? N Done Done Try different - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 42
the following items (if applicable). Check computer operation after each replacement: 1. Internal DC-DC converter* 2. Internal AC adapter 3. Processor board* 4. System board* *NOTE: Replace these items as a set to prevent shorting out among components. Done Maintenance and Service Guide 2-15 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 43
Troubleshooting Flowchart 2.6-No Video, Part 1 No video. Docking Device Stand-alone or docking device? Go to "Flowchart 2.7-No Video, Part . N Replace the following one at a time. Test after each replacement. 1. Cable between computer and computer display (if applicable) 2. Display 3. System - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 44
Troubleshooting Flowchart 2.7-No Video, Part 2 Continued from "Flowchart 2.6-No Video, Part 1." Remove computer from docking device, if connected. Adjust display brightness. Check brightness of external monitor. N Y Go to "A" in Video OK? "Flowchart Video OK? Done 2.6-No Video, Part 1." - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 45
Troubleshooting Flowchart 2.8-Nonfunctioning Docking Device (if applicable) Nonfunctioning docking device. Reset power cord in docking device and power outlet. Check voltage setting on docking device. Reset monitor cable connector at docking device. Y Docking device operating? N Replace docking - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 46
Troubleshooting Flowchart 2.9-No Operating System (OS) Loading No OS loading.* Reset power cord in docking device and power outlet. No OS loading from hard drive, go to "Flowchart 2.10-No OS Loading, Hard Drive, Part 1." No OS loading from diskette drive, go to "Flowchart 2.13-No OS Loading, - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 47
Troubleshooting Flowchart 2.10-No OS Loading, Hard Drive, Part 1 OS not loading from hard drive. Y Nonsystem disk N Boot from hard drive? Y Done Go to "Flowchart 2.11-No OS Loading, Hard Drive, Part 2." Done N Boot from diskette? Y Change boot priority through the Setup Utility and reboot. N - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 48
? Y Y Computer booted? N Go to "Flowchart 2.12-No OS Loading, Hard Drive, Part 3." Create partition, and then format hard drive to bootable C:\ prompt. Format hard drive and bring to a bootable C:\ prompt. Load OS using Operating System disc (if applicable). Maintenance and Service Guide 2-21 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 49
Troubleshooting Flowchart 2.12-No OS Loading, Hard Drive, Part 3 Continued from "Flowchart 2.11-No OS Loading, Hard Drive, Part 2." N System files on hard drive? Y Install OS and reboot. Y Virus on hard Replace hard drive. Y Done Replace hard drive. Done 2-22 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 50
Troubleshooting Flowchart 2.13-No OS Loading, Diskette Drive OS not computer. Refer to OS loading? Done Section 1.2, "Resetting the N Computer," for instructions. Change boot priority using the Setup Utility. Go to "Flowchart 2.17-Nonfunctioning Device." Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 51
? Y Done Go to "Flowchart 2.17-Nonfunctioning Device." Y Reset the computer. Booting order correct? N Refer to Section 1.2, "Resetting the Computer," for instructions. Go to "Flowchart 2.17-Nonfunctioning Device." Correct boot order using the Setup Utility. 2-24 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 52
. N Y Computer in docking device (if applicable)? N Undock N Internal audio? Y Go to "Flowchart 2.16-No Audio, Part 2." Go to "Flowchart 2.16-No Audio, Part 2." Replace the docking device. Go to "Flowchart 2.17-Nonfunctioning Device." N Y Audio? Done Maintenance and Service Guide 2-25 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 53
Troubleshooting Flowchart 2.16-No Audio, Part 2 Continued from "Flowchart 2.15-No Audio, Part 1." N Audio driver in OS configured? Y Reload audio drivers. N Correct drivers for application? Y Load drivers and set configuration in OS. Connect to external speaker. N Replace audio Y board - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 54
Troubleshooting Flowchart 2.17-Nonfunctioning Device Nonfunctioning device. Reseat device. Unplug the nonfunctioning device from the computer and inspect cables and plugs for bent or broken pins or other damage. Clear CMOS. Reattach device. Close computer, plug in power and Service Guide 2-27 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 55
operating properly. Connect computer to good external keyboard. N External device works? Y Replace system board. Reseat internal keyboard connector (if applicable). N OK? Y Replace internal keyboard or cable. Y Done OK? Done N Replace system board. 2-28 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 56
. Connect computer to good external pointing device. N External device works? Y Replace system board. Reseat internal pointing device connector (if applicable). N OK? Y Replace internal pointing device or cable. Y Done OK? Done N Replace system board. Maintenance and Service Guide 2-29 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 57
line. N Y NIC/modem configured Reload drivers and OK? Done in OS? reconfigure. Y N Disconnect all power from the computer and open. Reseat NIC/modem (if applicable). Replace the NIC/modem (if applicable). Y OK? Done N Replace system board. 2-30 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 58
parts breakdown and a reference for spare part numbers. 3.1 Serial Number Location When ordering parts or requesting information, provide the computer serial number and computer model number located on the bottom of the computer. Serial Number Location Maintenance and Service Guide 3-1 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 59
Illustrated Parts Catalog 3.2 Computer Major Components Computer Major Components 3-2 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 60
Catalog Item 1 2 3 4 5 6 Table 3-1 Spare Parts: Computer Major Components Description Spare Part Number Display assemblies (include wireless antenna transceivers and cables) 15.4-inch, WSXGA+ with model 417518-001 441080-001 Fan assembly 378233-001 Maintenance and Service Guide 3-3 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 61
Illustrated Parts Catalog Computer Major Components 3-4 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 62
M 450 (2.0-GHz) processor Intel Celeron M 450 (1.83-GHz) processor Plastics Kit PC Card slot space saver Bluetooth module cover Memory module cover (includes 3 captive screws) Hard drive cover (includes 2 captive screws) Not illustrated: computer feet (7) Spare Part Number 379799-001 413686-001 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 63
Illustrated Parts Catalog Computer Major Components 3-6 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 64
Catalog Table 3-1 Spare Parts: Computer Major Components (Continued) Item 10 Description Mini Card modules 802.11b Republic Guam Guatemala Hong Kong Panama India Indonesia Malaysia Mexico New Zealand Spare Part Number 407253-001 407253-002 Uruguay Venezuela 407253-291 407254-001 407254-002 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 65
Illustrated Parts Catalog Computer Major Components 3-8 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 66
Catalog Table 3-1 Spare Parts: Computer Major Components (Continued) Item 10 Description Mini Card modules (Continued Peru Qatar South Korea 802.11a/b/g GL WLAN module for use in Japan Spare Part Number 407575-002 Norway Oman Slovenia South Africa Spain Sri Lanka Sweden Switzerland Turkey The - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 67
Illustrated Parts Catalog Computer Major Components 3-10 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 68
Catalog Table 3-1 Spare Parts: Computer Major Components (Continued) Item 10 11 12 13 14 15 Description Mini Card modules (Continued) 802.11b/g GL WLAN module for use in the following countries or regions: Israel Jordan Kuwait Thailand United Arab Emirates Memory modules, 1-DIMM PC2-5300 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 69
Illustrated Parts Catalog Computer Major Components 3-12 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 70
3-1 Spare Parts: Computer Major Components (Continued) Item 16 17 18 19 20 Description USB/audio board (includes USB board cable and audio board cable) Base enclosure For full-featured model For defeatured model Bluetooth® module (includes Bluetooth module cable) Batteries 6-cell, 4.8-AH - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 71
Illustrated Parts Catalog 3.3 Plastics Kit 3-14 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 72
-001 Memory module compartment cover (includes 1 captive screw, captured by a C-clip) Bluetooth module cover (includes 1 captive screw, captured by a C clip) Computer feet (8) PC Card slot bezel Hard drive cover (includes 2 captive screws, captured by C-clips) Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 73
Illustrated Parts Catalog 3.4 Mass Storage Devices 3-16 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 74
Table 3-3 Mass Storage Devices Spare Part Number Information Item 1 2 Description Hard drives (include frame and connector /CD-RW Combo Drive 8X Max DVD-ROM drive 24X Max CD-ROM drive Spare Part Number 416414-001 413853-001 413852-001 413851-001 413850-001 413702-001 413700-001 413701-001 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 75
(Not Illustrated) Spare Part Information Description 65-watt AC adapter, for full-featured models 65-watt AC adapter, for defeatured models External MultiBay II External MultiBay II power cable and stand HP Extended Life Battery HP Docking Station HP Docking Station Miscellaneous Plastics Kit - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 76
Table 3-4 Miscellaneous (Not Illustrated) Spare Part Information (Continued) Description Power cords: For use in the United States in Japan For use in Korea For use in Israel For use in Switzerland Spare Part Number 246959-001 246959-011 246959-021 246959-031 246959-061 246959-081 246959-201 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 77
Part Information (Continued) Description Spare Part Number Screw Kit (includes the following screws; refer to Appendix A, "Screw Listing," for more information on specifications and ■ Torx8 T8M2.5×4.0 screw ■ Hex HM5.0×12.0 screw lock ■ Rubber screw covers 3-20 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 78
II power cable and stand HP Extended Life Battery 6-cell, 4.8-AH battery MultiBay 8X DVD-ROM Drive (for use in External MultiBay II and HP Docking Station) MultiBay 24X DVD/CD-RW Combo Drive (for use in External MultiBay II and HP Docking Station) Fan assembly Maintenance and Service Guide 3-21 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 79
Part Number 379799-001 380089-001 391172-001 398393-001 399441-001 407253-001 407253-002 407253-291 407254-001 407254-002 407254-291 Description Heat sink (includes thermal paste) HP Docking Station Miscellaneous Plastics Kit 65-W AC Adapter, for defeatured models Bluetooth and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 80
Catalog Table 3-5 Sequential Part Number Listing (Continued) Spare Part Number 407575-001 407575-002 Description 802.11a/b/g GL WLAN module for use in the MOW! Slovenia South Africa Spain Sri Lanka Sweden Switzerland Turkey The United Kingdom Uzbekistan Maintenance and Service Guide 3-23 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 81
Catalog Table 3-5 Sequential Part Number Listing (Continued) Spare Part Number 407575-003 Description Emirates Ukraine HP Docking Station Intel Celeron 1.46-GHz processor (includes thermal paste), for full-featured models Intel Celeron 1.60-GHz -ROM drive 3-24 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 82
rpm, 120-GB hard drive 7200 rpm, 100-GB hard drive System board (includes RTC battery) USB/audio board (includes USB board cable and audio board cable) Top cover (includes TouchPad and speakers) Base enclosure Switch cover (includes LED board and LED board cable) Maintenance and Service Guide 3-25 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 83
for use in Sweden Keyboard for use in Switzerland Keyboard for use in French Canada Keyboard for use in Portugal Keyboard for use in Turkey Keyboard for use in Greece Keyboard for use in Latin America Keyboard for use in Saudi Arabia Keyboard for use in Brazil 3-26 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 84
Keyboard for use in Japan Keyboard for use in Taiwan Keyboard for use in Korea Keyboard for use internationally Keyboard for use in Slovenia Keyboard for use in Israel Keyboard for use in Iceland Screw Kit, for full-featured models Plastics Kit 6-cell, 4.0-AH battery and Service Guide 3-27 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 85
Table 3-5 Sequential Part Number Listing (Continued) Spare Part Number 439222-001 33-GHz) processor, for defeatured models Intel Celeron M 450 1.83-GHz processor, for defeatured models Intel Celeron M 450 2.0-GHz processor, for defeatured models defeatured models 3-28 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 86
Preliminaries This chapter provides essential information for proper and safe removal and replacement service. 4.1 Tools Required You will need the following tools to complete the removal -bladed screwdriver ■ Hex 5.0-mm socket drive for system board screw locks Maintenance and Service Guide 4-1 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 87
damage. Plastic Parts Using excessive force during disassembly and reassembly can damage plastic parts. Use care when handling the plastic parts. Apply pressure only at the points designated in the maintenance instructions. Cables and Connectors Ä CAUTION: When servicing the computer, be sure - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 88
Removable drives are fragile components that must be handled with care. To prevent damage to the computer, damage to a removable drive, or loss of information, observe the following precautions: ■ Before packaging and label the package "FRAGILE: Handle With Care." Maintenance and Service Guide 4-3 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 89
many integrated circuits provide some protection, but in many cases, the discharge contains enough power to alter device parameters or melt silicon junctions. A sudden discharge of static electricity degrade in the internal layers, reducing its life expectancy. 4-4 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 90
a sensitive component or assembly. ■ Store reusable electrostatic-sensitive parts from assemblies in protective packaging or nonconductive foam. ■ Use selected to avoid static charging. When grounding is not possible, use an ionizer to dissipate electric charges. Maintenance and Service Guide 4-5 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 91
components, parts, and assemblies by the case or PCM laminate. Handle these items only at static-free workstations. ■ Avoid contact with pins, leads, or circuitry. ■ Turn off power and input signals before inserting or removing connectors or test equipment. 4-6 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 92
wear a strap snugly against the skin at all times. On grounded mats with banana-plug connectors, use alligator straps) can be used at standing workstations and are compatible with most types of shoes or boots. On conductive hard ties to the ground. ■ Field service kits. ■ Static awareness labels. ■ - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 93
4-2 Static-Shielding Materials Material Use Voltage Protection Level Antistatic plastic Bags 1,500 V Carbon-loaded plastic Floor mats 7,500 V Metallized laminate Floor mats 5,000 V 4-8 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 94
as many as 70 screws and screw locks, in 16 different sizes and types, that may have to be removed, replaced, or loosened when servicing the computer. Make special note of each screw and screw lock size and location during removal and replacement. Refer to Appendix A, "Screw Listing," for detailed - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 95
Removal and Replacement Procedures 5.1 Serial Number Report the computer serial number to HP when requesting information or ordering spare parts. The serial number is located on the bottom of the computer. Serial Number Location 5-2 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 96
components. Section 5.3 5.4 5.5 5.6 5.7 5.8 5.9 5.10 5.11 5.12 Disassembly Sequence Chart Description Preparing the Computer for Disassembly Battery Hard Drive Computer Feet Optical Drive External Memory Module Bluetooth Module Keyboard Thermal Plate Fan Assembly Heat Sink # of s Removed - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 97
Battery 0 Switch Cover 3 Display Assembly 8 Top Cover 16 full-featured model 13 defeatured model Modem Module 2 System Board 2 screw locks 5 full-featured model 4 defeatured model System Board Frame 3 (full-featured models only) USB/Audio Board 2 5-4 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 98
: 1. Shut down the computer. If you are unsure whether the computer is off or in hibernation, turn the computer on, and then shut it down through the operating system. 2. Disconnect all external devices connected to the computer. 3. Disconnect the power cord. Maintenance and Service Guide 5-5 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 99
toward you. b. Slide the battery release latch on the right 1 and then the battery release latch on the left 2 to release the battery. c. Slide the battery 3 straight back and remove it. Removing the Battery Reverse the above procedure to install the battery. 5-6 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 100
Removal and Replacement Procedures Hard Drive Spare Part Number Information 7200 rpm 100 GB 416415-001 5400 rpm 120 GB 100 GB 80 GB 60 GB 40 GB 416414-001 413853-001 413852-001 413851-001 413850-001 1. Prepare the computer for disassembly (Section 5.3). Maintenance and Service Guide 5-7 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 101
the hard drive cover to the computer. 3. Lift the left side of the hard drive cover 2 and swing it to the right. 4. Remove the hard drive cover. ✎ The hard drive cover is included in the Plastics Kit, spare part number 417527-001. Removing the Hard Drive Cover 5-8 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 102
to the right 3 to disconnect it from the system board. 7. Remove the hard drive 4 from the hard drive bay. Removing the Hard Drive Maintenance and Service Guide 5-9 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 103
remove if from the hard drive. Removing the Hard Drive Frame Reverse the above procedure to reassemble and install the hard drive. 5-10 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 104
Removal and Replacement Procedures 5.5 Computer Feet The computer feet are adhesive-backed rubber pads. The feet are included in the Plastics Kit, spare part number 417527-001. Replacing the Computer Feet Maintenance and Service Guide 5-11 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 105
you. 3. Remove the Torx8 T8M2.5×4.0 screw 1 that secures the optical drive to the computer. 4. Insert a flat-bladed driver into the slot 2 on the bottom of the computer and push the tab. 5. Remove the optical drive 3 from the computer. Removing the Optical Drive 5-12 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 106
optical drive. 7. Remove the optical drive bracket 2. Removing the Optical Drive Bracket Reverse the above procedure to reassemble and install an optical drive. Maintenance and Service Guide 5-13 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 107
Memory Module Memory Module Spare Part Number Information 1-DIMM, PC2-5300 1024 MB 512 MB 256 MB 414046-001 414045-001 414044-001 1-DIMM, PC2-4200 1024 MB 512 MB 256 MB 414042-001 414041-001 414040-001 1. Prepare the computer for disassembly (refer to Section 5.3). 2. Position the computer - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 108
computer. 4. Lift the right side of the cover 2 and swing it up and to the left. 5. Remove the memory module compartment cover. ✎ The memory module compartment cover is included in the Plastics Kit, spare part number 417527-001. Removing the Memory Module Compartment Cover Maintenance and Service - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 109
socket at an angle. 8. Remove the memory module. ✎ Memory modules are designed with a notch 3 to prevent incorrect installation into the memory module socket. Removing the External Memory Module Reverse the above procedure to install an external memory module. 5-16 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 110
to the computer. 4. Remove the Bluetooth module cover 2 from the computer. ✎ The Bluetooth module cover is included in the Plastics Kit, spare part number 417527-001. 5. Disconnect the Bluetooth module cable 3 from the system board. Removing the Bluetooth Module Maintenance and Service Guide 5-17 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 111
secure the Bluetooth module to the Bluetooth module cover. 7. Remove the Bluetooth module 2 from the cover. 8. Disconnect the Bluetooth module cable 3 from the module. Removing the Bluetooth Module Cover Reverse the above procedure to install a Bluetooth module. 5-18 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 112
Removal and Replacement Procedures Keyboard Spare Part Number Information Keyboards (include keyboard cable) For use in: Brazil 417525-031 417525-001 1. Prepare the computer for disassembly (Section 5.3). 2. Position the computer with the front toward you. Maintenance and Service Guide 5-19 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 113
Removal and Replacement Procedures 3. Remove the two Torx8 T8M2.5×10.0 screws that secure the keyboard to the computer. Removing the Keyboard Screws 5-20 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 114
with the front toward you. 5. Open the computer as far as possible. 6. Slide the four keyboard retention tabs 1 toward you. The tabs are . 7. Lift the rear edge of the keyboard 2 and swing it toward you until it rests on the palm rest. Releasing the Keyboard Maintenance and Service Guide 5-21 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 115
Release the zero insertion force (ZIF) connector 1 to which the keyboard cable is connected and disconnect the keyboard cable 2 from the system board. Disconnecting the Keyboard Cable 9. Remove the keyboard. Reverse the above procedure to install the keyboard. 5-22 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 116
Plate Spare Part Number Information 417521-001 1. Prepare the computer for disassembly (Section 5.3). 2. Release the keyboard (Section 5.9). computer. 4. Remove the thermal plate 3. Removing the Thermal Plate Reverse the above procedure to install the thermal plate. Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 117
Assembly Spare Part Number Information 378233-001 1. Prepare the computer for disassembly (Section 5.3). 2. Release the keyboard (Section the fan to the computer. 6. Remove the fan 3. Removing the Fan Reverse the above procedure to install the fan assembly. 5-24 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 118
Removal and Replacement Procedures Heat Sink Spare Part Number Information Heat sink (includes thermal paste) 379799-001 1. Prepare the computer for disassembly (Section 5.3). 2. Release the keyboard (Section 5.9). 3. Remove the fan assembly (Section 5.11). Maintenance and Service Guide 5-25 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 119
the heat sink. 4. Loosen the four Phillips PM2.0×8.0 shoulder screws 1 that secure the heat sink to the computer. ✎ Due to the adhesive quality of the thermal paste located between the heat sink and processor, it may right and remove it. Removing the Heat Sink 5-26 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 120
cleaned from the surfaces of the heat sink 1 and processor 2 each time the heat sink is removed. Thermal paste is included with all heat sink and processor spare part kits. Replacing the Thermal Paste Reverse the above procedure to install the heat sink. Maintenance and Service Guide 5-27 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 121
Part (1.66-GHz) processor Intel Celeron 1.60-GHz processor Intel Celeron 1.46-GHz processor For use computer for disassembly (Section 5.3) and remove the following components: a. Keyboard (Section 5.9) b. Fan assembly (Section 5.11) c. Heat sink (Section 5.12) 5-28 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 122
triangle icon 4 embossed on the processor socket when you install the processor. Removing the Processor Reverse the above procedure to install the processor. Maintenance and Service Guide 5-29 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 123
Removal and Replacement Procedures 5.14 Mini Card Module Mini Card Module Spare Part Number Information 802.11 b/g HS WLAN module for use in North America 802.11 b/g HS WLAN Venezuela 407254-291 407575-001 Paraguay Saudi Arabia Taiwan The United States Vietnam 5-30 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 124
Removal and Replacement Procedures Mini Card Module Spare Part Number Information (Continued) 802.11 a/b/g GL WLAN module 1. Prepare the computer for disassembly (Section 5.3). 2. Release the keyboard (Section 5.9). 3. Remove the thermal plate (Section 5.9). Maintenance and Service Guide 5-31 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 125
Phillips PM2.0×4.0 screws 2 that secure the Mini Card module to the computer. (The edge of the module opposite the socket rises away from the computer.) 6. Remove the Mini Card module by pulling the module 3 away above procedure to install a Mini Card module. 5-32 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 126
Part Number Information 1-DIMM, PC2-5300 1024 MB 512 MB 256 MB 414046-001 414045-001 414044-001 1-DIMM, PC2-4200 1024 MB 512 MB 256 MB 414042-001 414041-001 414040-001 1. Prepare the computer for disassembly (Section 5.3). 2. Release the keyboard (Section 5.9). Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 127
socket at an angle 2. 5. Remove the memory module. ✎ Memory modules are designed with a notch 3 to prevent incorrect installation into the memory module socket. Removing the Internal Memory Module Reverse the above procedure to install an internal memory module. 5-34 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 128
system board spare part kit. 1. Prepare the computer for disassembly (Section 5.3). 2. Release the keyboard (Section 5.9). 3. Remove the RTC battery from the clip in the top cover. Removing the RTC Battery Reverse the above procedure to install an RTC battery. Maintenance and Service Guide 5-35 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 129
for disassembly (Section 5.3). 2. Remove the keyboard (Section 5.9). 3. Turn the computer upside down with the rear panel toward you. 4. Remove the three Phillips PM2.0×2.0 screws that secure the switch cover to the computer. Removing the Switch Cover Screws 5-36 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 130
the computer as far as possible. 7. Use a flat-bladed screwdriver to lift up the left and right hinge cover sections of the switch cover 1 to detach it from the computer. 8. Swing the rear edge of the switch cover 2 up and toward you. Releasing the Switch Cover Maintenance and Service Guide 5-37 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 131
Removal and Replacement Procedures 9. Disconnect the LED board cable 1 from the system board. 10. Remove the switch cover 2. Removing the Switch Cover Reverse the above procedure to install the switch cover. 5-38 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 132
and cables) 15.4-inch, WSXGA+ with BrightView 15.4-inch, WSXGA+ 15.4-inch, WXGA+ 417524-001 417523-001 417522-001 1. Prepare the computer for disassembly (Section 5.3). 2. Remove the keyboard (Section 5.9). 3. Remove the switch cover (Section 5.17). Maintenance and Service Guide 5-39 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 133
clips (2 and 3) through which they are routed. 6. Disconnect the display cable 4 from the system board. Disconnecting the Wireless Antenna and Display Cables 5-40 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 134
Removal and Replacement Procedures 7. Remove the two Torx8 T8M2.5×10.0 screws 1 and the two Phillips PM2.0×2.0 screws 2 that secure the display assembly to the computer. Removing the Display Assembly Screws Maintenance and Service Guide 5-41 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 135
with the rear panel toward you. 9. Remove the four Torx8 T8M2.5×10.0 screws 1 that secure the display assembly to the computer. 10. Lift the display assembly 2 straight up to remove it. Removing the Display Assembly Reverse the above procedure to install the display assembly. 5-42 Maintenance - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 136
Spare Part Number Information Top cover (includes TouchPad and speakers) Full-featured models Defeatured models 417518-001 441080-001 1. Prepare the computer for disassembly (Section 5.3) and remove the following components: a. Hard drive (Section 5.4) b. Optical drive (Section 5.6) c. Keyboard - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 137
.5×10.0 screws 2 that secure the top cover to the computer. Note that the defeatured model uses two fewer screws. ✎ The rubber screw covers are available in the Screw Kit, spare part number 417526-001. Removing the Top Cover Screws, Part 1 (select models only) 5-44 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 138
the front toward you. 5. Disconnect the speaker cable 1 from the system board. 6. Remove the four Torx8 T8M2.5×4.0 screws 2 that secure the top cover to the computer. Note that the defeatured model requires removal of three torx screws to remove the top cover, and does not include the left-most torx - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 139
top cover until it disengages from the base enclosure. In each of the slots in the front of the computer between the top cover and base enclosure, use a flat-bladed screwdriver to pry the front of the top Reverse the above procedure to install the top cover. 5-46 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 140
the computer for disassembly (Section 5.3) and remove the following components: a. Hard drive (Section 5.4) b. Optical drive (Section 5.6) c. Keyboard (Section 5.9) d. Switch cover (Section 5.17) e. Display assembly (Section 5.18) f. Top cover (Section 5.19) Maintenance and Service Guide 5-47 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 141
cable 3 from the modem module. 5. Remove the modem module. Removing the Modem Module Reverse the above procedure to install the modem module. 5-48 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 142
System Board System Board Spare Part Number Information System board (includes RTC battery) Defeatured model, GM Defeatured model Memory modules (Section 5.7 and Section 5.15) ■ Processor (Section 5.13) ■ Mini Card module (Section 5.14) ■ Modem module (Section 5.20) Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 143
the computer for disassembly (Section 5.3) and remove the following components: a. Hard drive (Section 5.4) b. Optical drive (Section 5.6) c. Bluetooth module (Section 5.8) d. Keyboard (Section 5.9) e. Thermal plate (Section 5.10) f. Fan (Section 5.11) g. Heat sink (Section 5.12) h. RTC battery - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 144
Removal and Replacement Procedures 3. Disconnect the following cables from the system board: 1 Modem connector cable 2 USB board cable 3 Audio board cable 4 Modem module cable Disconnecting the System Board Cables Maintenance and Service Guide 5-51 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 145
Torx T8M2.5×4.0 screws (the defeatured model uses four torx screws) Removing the System Board Screws and Screw Locks (full-featured model shown) 5-52 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 146
modem module cable 2 from the clip in the system board. 7. Remove the modem connector 3 from the clip in the base enclosure. Releasing the System Board, Part 1 Maintenance and Service Guide 5-53 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 147
connectors 4 are clear of the base enclosure. 9. Lift the front edge of the system board 5 until it rests at an angle. Releasing the System Board, Part 2 5-54 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 148
frame. 12. Remove the system board 5 from the base enclosure. Removing the System Board Reverse the above procedure to install the system board. Maintenance and Service Guide 5-55 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 149
computer for disassembly (Section 5.3) and remove the following components: a. Hard drive (Section 5.4) b. Optical drive (Section 5.6) c. Bluetooth module (Section 5.8) d. Keyboard (Section 5.9) e. Thermal plate(Section 5.10) f. Fan assembly (Section 5.11) g. Heat sink (Section 5.12) h. RTC battery - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 150
Removal and Replacement Procedures 3. Remove the three Torx8 T8M2.5×4.0 screws 1 that secure the system board frame to the base enclosure. 4. Remove the audio board and USB board cables 2 from the base enclosure. 5. Lift the rear edge of the system board frame 3 until it disengages from the base - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 151
the clips 2 in the system board frame. Removing the Modem Connector Cable Reverse the above procedures to install the system board frame. 5-58 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 152
USB/Audio Board Spare Part Number Information USB/audio board (includes audio board cable) 382677-001 1. Prepare the computer for disassembly (Section 5.3) and remove the following components: a. Hard drive (Section 5.4) b. Optical drive (Section 5.6) c. Bluetooth board (Section 5.8) d. Keyboard - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 153
that the right side clears the metal bracket attached to the base enclosure, and then lift the board out of the enclosure. Removing the USB/Audio Board Reverse the above procedure to install the USB/audio board. 5-60 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 154
This chapter provides physical and performance specifications. Dimensions Height (front to back) Width Depth Weight Input Power Operating voltage Operating current Table 6-1 Computer Metric 2.8 to 3.3 cm 35.8 cm 25.9 cm 32°F to 95°F 41°F to 95°F -4°F to 140°F Maintenance and Service Guide 6-1 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 155
Specifications Table 6-1 Computer (Continued) Relative humidity (noncondensing) Operating Nonoperating 10% to 90% 5% to 95% 10 product safety standards specify thermal limits for plastic surfaces. The computer operates well within this range of temperatures. 6-2 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 156
Character display Total power consumption Viewing angle 20.7 cm 33.1 cm 39.1 cm Up to 16.8 million 200:1 180 nits typical 8.1 in 13.0 in 15.4 in 0.197 × 0.197 mm 1680 × 1050 RGB vertical stripe Edge lit 80 × 25 5.5 W +/-65° horizontal, +/-50° vertical typical Maintenance and Service Guide 6-3 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 157
Character display Total power consumption Viewing angle 20.7 cm 33.1 cm 39.1 cm Up to 16.8 million 200:1 180 nits typical 8.1 in 13.0 in 15.4 in 0.279 × 0.279 mm 1280 × 800 RGB vertical stripe CCFT 80 × 25 5.5 W +/-65° horizontal, +/-50° vertical typical 6-4 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 158
/sec 100 MB/sec 100 MB/sec ATA security ATA security ATA security Seek times (typical read, including setting) Single track Average Maximum Logical blocks† 3 ms 13 ms 24 ms 3 accessible capacity is less. †Actual drive specifications may differ slightly. Maintenance and Service Guide 6-5 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 159
(maximum) Security 100 MB/sec 100 MB/sec ATA security ATA security Seek times (typical read, including setting) Single track Average Maximum Logical blocks† 3 ms 13 ms 24 ms 3 accessible capacity is less. †Actual drive specifications may differ slightly. 6-6 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 160
DVD-18), CD-ROM (Mode 1 and 2) CD Digital Audio CD-XA ready (Mode 2, Form 1 and 2) CD-I ready (Mode 2, Form 1 and 2) CD-R, CD-RW Photo CD (single and multisession) CD-Bridge Write: CD-R and CD-RW DVD-R and DVD-RW 1.5 cm (0.59 in) 12 cm (4.72 in) 8 cm (3.15 in) Maintenance and Service Guide 6-7 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 161
Specifications Table 6-5 DVD±RW and CD-RW Combo Drive (Continued) Disc thickness 1.2 mm (0.047 in) Track pitch 0.74 µm Access time CD DVD Random Full stroke < 175 ms < 285 ms < 230 ms < 335 ms Audio output level Audio-out, 0.7 Vrms Cache buffer 2 MB Data transfer rate CD-R (16X) CD - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 162
-5, DVD-9, DVD-10, DVD-18), CD-ROM (Mode 1 and 2) CD Digital Audio CD-XA ready (Mode 2, Form 1 and 2) CD-I ready (Mode 2, Form 1 and 2) CD-R, CD-RW Photo CD (single and multisession) CD-Bridge 1.5 cm (0.59 in) Write: CD-R and CD-RW 12 cm (4.72 in) 8 cm (3.15 in) Maintenance and Service Guide 6-9 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 163
Specifications Table 6-6 DVD/CD-RW Combo Drive (Continued) Disc thickness 1.2 mm (0.047 in) Track pitch 0.74 µm Access time CD DVD Random Full stroke < 175 ms < 285 ms < 230 ms < 335 ms Audio output level Audio-out, 0.7 Vrms Cache buffer 2 MB Data transfer rate CD-R (16X) CD-RW (8X - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 164
Specifications Table 6-7 DVD-ROM Drive Applicable disc DVD-ROM (DVD-5, DVD-9, DVD-10, DVD-18) CD-ROM (Mode 1 and 2) CD Digital Audio CD-XA ready (Mode 2, Form 1 and 2) CD-I ready ( at 1X DVD rate) 16.6 MB/s Startup time < 10 seconds Stop time < 3 seconds Maintenance and Service Guide 6-11 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 165
Standard disc Mini disc Table 6-8 CD-ROM Drive CD-ROM (Mode 1 and 2) CD Digital Audio CD-XA ready (Mode 2, Form 1 and 2) CD-I ready (Mode 2, Form 1 and 2) CD-R CD-RW Photo CD (single and multisession) CD-Bridge 1.5 cm (0.59 in) 12 cm (4.72 in) 8 cm (3.15 in) 6-12 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 166
stroke < 110 ms < 220 ms < 125 ms < 225 ms Audio output level Audio-out, 0.7 Vrms Cache buffer 128 KB/s Data transfer rate CD-R (24X) 3600 KB/s (150 KB/s at 1X CD rate) Multiword DMA mode 2 16.6 MB/s Startup time < 8 seconds Stop time < 4 seconds Maintenance and Service Guide 6-13 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 167
System Function DMA0 Not applicable DMA1* Not applicable DMA2* Not applicable DMA3 Not applicable DMA4 Direct memory access controller DMA5* Available for PC Card DMA6 Not assigned DMA7 Not assigned *PC Card controller can use DMA 1, 2, or 5. 6-14 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 168
Specifications Hardware IRQ IRQ0 IRQ1 IRQ2 IRQ3 IRQ4 IRQ5* IRQ6 IRQ7* IRQ8 IRQ9* IRQ10* Table 6-10 System Interrupts System Function System timer Standard 101-/102-Key or Microsoft Natural Keyboard Cascaded Intel 82801DB/DBM USB2 Enhanced Host Controller-24CD COM1 Conexant AC-Link Audio Intel - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 169
Specifications Table 6-10 System Interrupts (Continued) IRQ11 Intel USB EHCI controller IRQ14 Primary IDE channel IRQ15 Secondary IDE channel *Default configuration; audio possible configurations are IRQ5, IRQ7, IRQ9, IRQ10, or none. ✎ PC Cards may assert IRQ3, IRQ4, IRQ5, IRQ7, IRQ9, IRQ10 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 170
Specifications I/O Address (hex) 000 - 00F 010 - 01F 020 - 021 022 - 024 025 - 03F CPU Counter/timer registers Unused Keyboard controller Port B Unused Keyboard controller Unused NMI enable/RTC Unused DMA page registers Unused Port A Unused Interrupt controller no. 2 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 171
Specifications Table 6-11 System I/O Addresses (Continued) I/O Address (hex) 0A2 - 0BF 0C0 - 0DF 0E0 - 0EF 0F0 fixed disk controller Unused JoyStick (decoded in ESS1688) Unused Entertainment audio Unused Unused Unused Unused Unused Unused Reserved serial port 6-18 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 172
Specifications Table 6-11 System I/O Addresses (Continued) I/O Address (hex) 2F0 - 2F7 2F8 - 2FF 300 - 31F 320 - Unused FM synthesizer-OPL3 Unused VGA Reserved (parallel port/no EPP support) VGA PC Card controller in CPU Unused Internal modem "A" diskette controller Serial port (COM1/default) PCI - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 173
00FFFFFF 01000000-047FFFFF 04800000-07FFFFFF 08000000-080FFFFF 08200000-FFFEFFFF FFFF0000-FFFFFFFF System Function Base memory Video memory Video BIOS Unused System BIOS Extended memory Super extended memory Unused Video memory (direct access) Unused System BIOS 6-20 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 174
A Screw Listing This appendix provides specification and reference information for the screws used in the computer. All screws listed in this appendix are available in the Screw Kit, spare part number 417526-001 (full-featured model) or spare part number 441079-001 (defeatured model). Table A-1 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 175
Screw Listing Phillips PM3.0×3.0 Screw Locations A-2 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 176
is captured on the cover by a C-clip; documented in Section 5.7) 3 One screw that secures the Bluetooth module compartment cover to the computer (screw is captured on the cover by a C-clip; documented in Section 5.8) Phillips PM2.0×5.0 Captive Screw Locations Maintenance and Service Guide A-3 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 177
-Loaded Screw Head mm Color Qty. Length Thread Width Silver 1 13.0 mm 2.5 mm 6.0 mm Where used: One screw that secures the hard drive to the computer (screw is captured on the cover by a C-clip; documented in Section 5.4) Phillips PM2.5×13.0 Captive Screw Location A-4 Maintenance and - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 178
.5×4.0 Screw Head mm Color Qty. Length Thread Width Black 13/11* 4.0 mm 2.5 mm 5.0 mm Where used: One screw that secures the optical drive to the computer (documented in Section 5.6) * 11 screws in defeatured model Torx8 T8M2.5×4.0 Screw Location Maintenance and Service Guide A-5 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 179
Continued) Head mm Color Qty. Length Thread Width Black 13/11* 4.0 mm 2.5 mm 5.0 mm Where used: 4 screws that secure the top cover to the computer (documented in Section 5.19) * 11 screws in defeatured model Note: Defeatured model uses only the right three screws to secure the top cover. Torx8 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 180
secure the system board to the computer (documented in Section 5.21) 2 Three screws that secure the system board frame to the computer (documented in Section 5.22) Defeatured model uses four screws to secure the system board to the computer, screws 1 and the left-most screw 2.The system board frame - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 181
Screw (Continued) Head mm Color Qty. Length Thread Width Black 13/11* 4.0 mm 2.5 mm 5.0 mm Where used: 2 screws that secure the USB/audio board to the computer (documented in Section 5.23) * 11 screws in defeatured model Torx8 T8M2.5×4.0 Screw Locations A-8 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 182
2 3.0 mm 2.0 mm 3.0 mm Where used: 2 screws that secure the optical drive bracket to the optical drive (documented in Section 5.6) Phillips PM2.0×3.0 Screw Locations Maintenance and Service Guide A-9 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 183
Table A-6 Phillips PM1.5×3.0 Screw Head mm Color Qty. Length Thread Width Silver 2 3.0 mm 1.5 mm 5.0 mm Where used: 2 screws that secure the Bluetooth module to the Bluetooth module cover (documented in Section 5.8) Phillips PM1.5×3.0 Screw Locations A-10 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 184
mm 5.0 mm Where used: 1 Two screws that secure the keyboard to the computer (documented in Section 5.9) 2 Four screws that secure the display assembly to the computer (documented in Section 5.18) * 18 screws on defeatured model Torx8 T8M2.5×10.0 Screw Locations Maintenance and Service Guide A-11 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 185
(Continued) Head mm Color Qty. Length Thread Width Black 20/18* 10.0 mm 2.5 mm 5.0 mm Where used: 2 screws that secure the display assembly to the computer (documented in Section 5.18) * 18 screws on defeatured model Torx8 T8M2.5×10.0 Screw Locations A-12 Maintenance and - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 186
Head mm Color Qty. Length Thread Width Black 20/18* 10.0 mm 2.5 mm 5.0 mm Where used: 12 screws that secure the top cover to the computer (documented in Section 5.19) * 18 screws on defeatured model Note: Screws 1 are not included on the defeatured model. Torx8 T8M2.5×10.0 Screw Locations (full - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 187
Screw Listing Table A-8 Phillips PM2.5×3.0 Screw Head mm Color Qty. Length Thread Width Black 2 3.0 mm 2.5 mm 5.0 mm Where used: 2 screws that secure the thermal plate to the computer (documented in Section 5.10) Phillips PM2.5×3.0 Screw Locations A-14 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 188
Screw Listing Table A-9 Phillips PM2.5×5.0 Screw Head mm Color Qty. Length Thread Width Black 2 5.0 mm 2.5 mm 5.0 mm Where used: 2 screws that secure the thermal plate to the computer (documented in Section 5.10) Phillips PM2.5×5.0 Screw Locations Maintenance and Service Guide A-15 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 189
PM2.5×7.0 Captive Screw Head mm Color Qty. Length Thread Width Silver 2 7.0 mm 2.5 mm 5.0 mm Where used: 2 captive screws that secure the fan assembly to the computer (documented in Section 5.11) Phillips PM2.5×7.0 Captive Screw Locations A-16 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 190
PM2.0×8.0 Captive Screw Head mm Color Qty. Length Thread Width Silver 4 8.0 mm 2.0 mm 5.0 mm Where used: 4 captive screws that secure the heat sink to the computer (documented in Section 5.12) Phillips PM2.0×8.0 Captive Screw Locations Maintenance and Service Guide A-17 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 191
Screw Listing Table A-12 Phillips PM2.0×4.0 Screw Head mm Color Qty. Length Thread Width Silver 2 4.0 mm 2.0 mm 5.0 mm Where used: 2 screws that secure the Mini Card module to the computer (documented in Section 5.14) Phillips PM2.0×4.0 Screw Locations A-18 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 192
Screw Listing Table A-13 Phillips PM2.0×2.0 Screw Head mm Color Qty. Length Thread Width Black 5 2.0 mm 2.0 mm 7.0 mm Where used: 3 screws that secure the switch cover to the computer (documented in Section 5.17) Phillips PM2.0×2.0 Screw Locations Maintenance and Service Guide A-19 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 193
Phillips PM2.0×2.0 Screw (Continued) Head mm Color Qty. Length Thread Width Black 5 2.0 mm 2.0 mm 7.0 mm Where used: 2 screws that secure the display assembly to the computer (documented in Section 5.18) Phillips PM2.0×2.0 Screw Locations A-20 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 194
Screw Listing Table A-14 Phillips PM2.5×4.0 Screw Head mm Color Qty. Length Thread Width Black 2 4.0 mm 2.5 mm 5.0 mm Where used: 2 screws that secure the modem module to the computer (documented in Section 5.20) Phillips PM2.5×4.0 Screw Locations Maintenance and Service Guide A-21 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 195
.0 Screw Lock Head mm Color Qty. Length Thread Width Silver 2 12.0 mm 5.0 mm 5.0 mm Where used: 2 screw locks that secure the system board to the computer (documented in Section 5.21) Hex HM5.0×12.0 Screw Lock Locations A-22 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 196
Head mm Color Qty. Length Thread Width Black 2/4* 6.0 mm 2.5 mm 5.0 mm Where used: 2 or 4 screws that secure the system board to the computer (documented in Section 5.21). Full-featured models use 2 screws. *Screws 1 and 2 on defeatured models. Only screws 1 on full-featured models. Torx8 T8M2 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 197
state ■ Scheduling backups at specific intervals or events When to Back Up ■ On a regularly scheduled basis ✎ Set reminders to back up your information periodically. ■ Before the computer is repaired or restored ■ Before you add or modify hardware or software Maintenance and Service Guide B-1 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 198
, and then select Edit > Paste. ✎ Before you can perform backup and recovery procedures, the computer must be connected to external power. ✎ Drivers, utilities, and applications installed by HP can be copied to a CD or to a DVD using HP Backup & Recovery Manager. B-2 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 199
depending on the file size and the speed of the computer. To back up specific files or folders: 1. Select Start > All Programs > HP Backup & Recovery > Backup and Recovery Manager. 2. Click Next. 3. Click Back up to protect system settings and important data files, and then click Next. 4. Click Back - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 200
then click Next. 5. Follow the on-screen instructions. Creating Recovery Points When you back up modifications since your last backup, you are creating system recovery points. This allows you to save a snapshot of your hard drive at a specific point in time. You can then recover back to that point - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 201
Scheduler. 2. Follow the on-screen instructions. Performing a Recovery ✎ You can only recover files that you have previously backed up. HP recommends that you use HP Backup and Recovery Manager to create an entire drive backup as soon as you set up your computer. Maintenance and Service Guide B-5 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 202
within Windows ■ From the recovery partition Initiating a Recovery in Windows To initiate a recovery in Windows, follow these steps: 1. Back up all personal files. 2. Select Start > All Programs > HP Backup & Recovery > Backup and Recovery Manager. 3. Click Next. B-6 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 203
from the hard drive recovery partition, follow these steps: 1. Back up all personal files. 2. Restart the computer, and then press f11 before the Windows operating system loads. 3. Click a recovery option, and then click Next. 4. Follow the on-screen instructions. Maintenance and Service Guide B-7 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 204
DVD±RW discs and DVD±RW double-layer discs are not compatible with HP Backup and Recovery Manager. ■ The computer must be connected to AC power during the process. ■ Only one set of the recovery discs can be created per computer. ■ Number each disc before inserting it into the optical drive of - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 205
state ■ Scheduling backups at specific intervals or events When to Back Up ■ On a regularly scheduled basis ✎ Set reminders to back up your information periodically. ■ Before the computer is repaired or restored ■ Before you add or modify hardware or software C-2 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 206
and then select Edit > Paste. ✎ Before you can perform backup and recovery procedures, the computer must be connected to external power. ✎ Drivers, utilities, and applications installed by HP can be copied to a CD or to a DVD using HP Backup and Recovery Manager. Maintenance and Service Guide C-3 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 207
and Recovery in Windows XP Backing Up Specific Files or Folders You can back up specific files or folders computer. To back up specific files or folders: 1. Select Start > All Programs > HP Backup & Recovery > HP Backup and Recovery Manager. 2. Click Next. 3. Click Back up to protect system settings - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 208
created since that recovery point. To create a system recovery point: 1. Select Start > All Programs > HP Backup & Recovery > HP Backup and Recovery Manager. 2. Click Next. 3. Click Back up to protect system settings and important data files, and then click Next. Maintenance and Service Guide C-5 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 209
, or monthly) or at specific events, such as at system restart or when you dock to an optional docking station (select models only). To schedule backups: 1. Select Start > All Programs > HP Backup & Recovery > HP Backup Scheduler. 2. Follow the on-screen instructions. Performing a Recovery ✎ You can - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 210
these steps: 1. Back up all personal files. 2. Select Start > All Programs > HP Backup & Recovery > HP Backup and Recovery Manager. 3. Click Next. 4. Click Recover important files or the entire system, and then click Next. 5. Follow the on-screen instructions. Maintenance and Service Guide C-7 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 211
from the hard drive recovery partition, follow these steps: 1. Back up all personal files. 2. Restart the computer, and then press f11 before the Windows operating system loads. 3. Click a recovery option, and then click Next. 4. Follow the on-screen instructions. C-8 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 212
are the liquid crystal display (LCD) panel and the backlight. Careful handling should be exercised when removing these components. ✎ Materials Disposal This HP product contains mercury in the backlight Electronic Industries Alliance (EIA) at http://www.eiae.org. Maintenance and Service Guide D-1 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 213
from one display assembly to another. The procedures provided in this appendix are general disassembly instructions. Specific details, such as screw sizes, quantities, and locations, and component shapes and sizes, can vary from one computer model to another. D-2 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 214
Display Component Recycling Perform the following steps to disassemble the display assembly: 1. Remove all screw covers 1 and screws 2 that secure the display bezel to the display assembly. Removing the Display Bezel Screw Covers and Screws Maintenance and Service Guide D-3 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 215
Display Component Recycling 2. Lift up and out on the left and right inside edges 1 and the top and bottom inside edges 2 of the display bezel until the bezel disengages from the display assembly. 3. Remove the display bezel 3. Removing the Display Bezel D-4 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 216
Display Component Recycling 4. Disconnect all display panel cables 1 from the display inverter and remove the inverter 2. Removing the Display Inverter Maintenance and Service Guide D-5 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 217
Display Component Recycling 5. Remove all s 1 that secure the display panel assembly to the display enclosure. 6. Remove the display panel assembly 2 from the display enclosure. Removing the Display Panel Assembly D-6 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 218
Display Component Recycling 7. Turn the display panel assembly upside down. 8. Remove all s that secure the display panel frame to the display panel. Removing the Display Panel Frames Maintenance and Service Guide D-7 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 219
Display Component Recycling 9. Use a sharp-edged tool to cut the tape 1 that secures the sides of the display panel to the display panel frame. 10. Remove the display panel frame 2 from the display panel. Removing the Display Frame D-8 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 220
Display Component Recycling 11. Remove the s 1 that secure the backlight cover to the display panel. 12. Lift the top edge of the backlight cover 2 and swing it forward. 13. Remove the backlight cover. Removing the Backlight Cover Maintenance and Service Guide D-9 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 221
Display Component Recycling 14. Turn the display panel right-side up. 15. Remove the backlight cables 1 from the clip 2 in the display panel. Releasing the Backlight Cables D-10 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 222
Display Component Recycling 16. Turn the display panel upside down. 17. Remove the backlight frame from the display panel. Removing the Backlight Frame Maintenance and Service Guide D-11 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 223
avoid damaging this component and causing exposure to the mercury. 18. Slide the backlight out of the backlight frame. Removing the Backlight D-12 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 224
cable 1 from the LCD panel. 20. Remove the s 2 that secure the LCD panel to the display rear panel. 21. Release the LCD panel 3 from the display rear panel. 22. Release the tape 4 that secures the LCD panel to the display rear panel. Releasing the LCD Panel Maintenance and Service Guide D-13 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 225
Display Component Recycling 23. Remove the LCD panel. Removing the LCD Panel 24. Recycle the LCD panel and backlight. D-14 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 226
E Connector Pin Assignments Table D-1 Audio-Out (Headphone) Pin Signal 1 Audio out, left channel 2 Audio out, right channel Pin Signal 3 Ground Maintenance and Service Guide E-1 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 227
Connector Pin Assignments Table D-2 Audio-In (Microphone) Pin Signal 1 Audio signal in 2 Audio signal in Pin Signal 3 Ground E-2 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 228
Connector Pin Assignments Table D-3 Universal Serial Bus Pin Signal 1 +5 VDC 2 Data - Pin Signal 3 Data + 4 Ground Maintenance and Service Guide E-3 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 229
analog Pin Signal 9 +5 VDC 10 Ground 11 Monitor detect 12 DDC 2B data 13 Horizontal sync 14 Vertical sync 15 DDC 2B clock E-4 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 230
Connector Pin Assignments Table D-5 RJ-11 (Modem) Pin Signal 1 Unused 2 Tip 3 Ring Pin Signal 4 Unused 5 Unused 6 Unused Maintenance and Service Guide E-5 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 231
Connector Pin Assignments Table D-6 RJ-45 (Network) Pin Signal 1 Transmit + 2 Transmit - 3 Receive + 4 Unused Pin Signal 5 Unused 6 Receive - 7 Unused 8 Unused E-6 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 232
The power cord set included with the computer meets the requirements for use in the country or region where the equipment is purchased. Power cord sets for use in other countries or regions must meet the requirements of the country or region where the computer is used. Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 233
rating of 125 or 250 V AC, as required by each country or region's power system. ■ The appliance coupler must meet the mechanical configuration of an EN 60 320/IEC 320 Standard Sheet C13 connector for mating with the appliance inlet on the back of the computer. F-2 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 234
Power Cord Set Requirements Country/Region-Specific Requirements 3-Conductor Power Cord Set Requirements Country/Region Accredited Agency Applicable Note Number Australia EANSW 1 type with a Japanese Industrial Standard C8303 (7 A, 125 V) configuration. Maintenance and Service Guide F-3 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 235
Power Cord Set Requirements 3-Conductor Power Cord Set , 1.0 mm² conductor size. Power cord set fittings (appliance coupler and wall plug 75 mm² conductor size. Power cord set fittings (appliance coupler and wall , 0.75 mm² conductor size. Power cord set fittings (appliance coupler and wall plug - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 236
port 1-12 A AC adapter, spare part number 3-18, 3-21 accessory battery connector 1-19 arrow keys 1-14 audio troubleshooting 2-25 audio-in jack location 1-9 pin assignments E-2 audio-out jack location 1-9 pin assignments E-1 B backing up hard drive Windows Vista C-3 Windows XP B-4 specific files or - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 237
D-1 display lid switch 1-16 display release latch 1-8 docking connector 1-19 drive light 1-8 drives, preventing damage 4-3 DVD/CD-RW Combo Drive precautions 4-3 removal 5-12 spare part number 3-11, 3-17, 3-18, 3-21, 3-25, 5-12 specifications 6-9, 6-11 Index-2 Maintenance and Service Guide - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 238
2-20, 2-21, 2-22 no OS loading from optical drive 2-24 no power 2-12, 2-14, 2-15 no video 2-16, 2-17 nonfunctioning device 2-27 nonfunctioning docking device 2-18 nonfunctioning keyboard 2-28 nonfunctioning pointing device 2-29 fn key 1-14 front components 1-7 Maintenance and Service Guide Index-3 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 239
, 5-25 HP Docking Station, spare part number 3-18, 3-24 HP Extended Life Battery, spare part number 3-18, 3-21 I I/O address specifications 6-17 initiating a Recovery from the hard drive Recovery Partition Windows Vista C-7 in Windows Vista C-6 interrupt specifications 6-15 K keyboard removal 5-19 - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 240
parts 4-2 Plastics Kit contents 3-15 spare part number 3-5, 3-15, 3-27 pointing device, troubleshooting 2-29 power button 1-16 power connector 1-10 power cord set requirements F-2 spare part numbers 3-19, 3-21 power light 1-7 power management features 1-6 Maintenance and Service Guide Index - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 241
assignments E-6 RTC battery, removal 5-35 S safeguarding your data B-2 scheduling backups Windows Vista C-5 Screw Kit, spare part number 3-20, 3-27, 3-28, A-1 security cable slot 1-11 serial number 3-1, 5-2 service considerations 4-2 speakers 1-16 specifications CD-ROM drive 6-12 computer 6-1 DVD - HP Nx7400 | HP Compaq nx7300 and nx7400 Notebook PC Maintenance and Service Guid - Page 242
/audio board removal 5-59 spare part number 3-13, 3-25, 5-59 V vents 1-19 video troubleshooting 2-16 volume buttons 1-16 W when to back up C-1 Windows applications key 1-14 Windows logo key 1-14 wireless button 1-16 wireless light 1-7, 1-16 workstation precautions 4-6 Maintenance and Service Guide
Maintenance and Service
Guide
HP Compaq nx7300 and nx7400 Notebook PC
Document Part Number: 410775-002
March 2007
This guide is a troubleshooting reference used for maintaining
and servicing the computer. It provides comprehensive
information on identifying computer features, components, and
spare parts; troubleshooting computer problems; and performing
computer disassembly procedures.