HP Dv4-1124nr HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide
HP Dv4-1124nr - Pavilion - Core 2 Duo GHz Manual
UPC - 884420609841
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- HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 1
HP Pavilion dv4 Entertainment PC Maintenance and Service Guide - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 2
by its proprietor and used by Hewlett-Packard Company under license. Intel, Celeron, services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein. First Edition: July 2008 Document Part - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 3
Safety warning notice WARNING! To reduce the possibility of heat-related injuries or of overheating the computer, do not place the computer directly on your lap or obstruct the computer air vents. Use the computer only on a hard, flat surface. Do not allow another hard surface, such as an adjoining - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 4
iv Safety warning notice - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 5
...17 Wireless antennae ...18 3 Illustrated parts catalog Serial number location ...19 Computer major parts ...33 Sequential part number listing ...37 4 Removal and replacement procedures Preliminary replacement requirements 47 Tools required ...47 Service considerations ...47 Plastic parts - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 6
...56 Optical drive ...57 Hard drive ...59 WLAN module ...62 WWAN module ...65 Memory module ...67 RTC battery ...69 Camera/microphone module for standard display assembly 70 Keyboard ...72 Keyboard cover ...76 Bluetooth module ...78 Speaker assembly ...79 SIM connector board ...81 Display assembly - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 7
DVD±R/RW Double Layer support specifications 133 Blu-ray Disc ROM Drive with SuperMulti DVD±R/RW Double-Layer (DL) support specifications ...134 DVD±RW specifications-AMD processors 142 System memory map specifications-Intel processors 144 System memory map specifications-AMD processors 145 - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 8
Universal Serial Bus ...180 10 Power cord set requirements Requirements for all countries or regions 181 Requirements for specific countries or regions 182 11 Recycling Battery ...183 Display ...183 Index ...189 viii - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 9
Intel processors with discrete graphics subsystem Intel processors with UMA graphics subsystem AMD processors with UMA graphics subsystem HP Pavilion dv4 Entertainment √ PC √ √ Intel® Core™ Duo with 1066-MHz front side bus (FSB) T9600 2.8-GHz processor with 6- √ √ MB L2 cache T9400 - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 10
cache) ● nVidia GeForce9200M GS (NB9M-GE-S) with 512 MB of dedicated video memory (64MB × 16 DDR2 × 4 PCs) with 512 MB of video memory when system memory is less than 1 GB (64 MB + 448 MB Turbo cache) System design supports up to 55W GPU requirement. AMD Internal Graphics with Layout "Sideport - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 11
processors with discrete graphics subsystem Unified Memory Architecture (UMA) with shared video memory (ATI Radeon HD 3200 Graphics): ● Up to 251 MB on computers with 1024 MB of system memory ● Up to 358 MB on computers with 2048 MB of system memory Memory size is a dynamic change. Display panel - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 12
Windows Vista® √ Premium Logo requirements Pavilion-branded Altec Lansing √ speakers 56K V.92 data/fax modem √ Supports all worldwide √ certification requirements Modem cable not included √ Integrated Gibabit 10/100/1000 √ network interface card (NIC) Integrated 10/100 network interface - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 13
Subscriber identity module (SIM) √ security (customer-accessible in battery bay) Support for the following WWAN √ formats: ● Evolution-data optimized with WWAN) External card expansion One ExpressCard54 slot √ Digital Media Slot, supports SD, √ MMC, MS, MSpro, ×D Internal card expansion 2 mini - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 14
supports HP √ xb4 Docking Station and HP Notebook QuickDock 14.1-inch keyboard √ TouchPad with 2 buttons and √ four-way scroll (taps enabled as default) 12-cell 2.20-Ah Li-ion battery √ 6-cell 2.55-Ah Li-ion battery √ End-user replaceable parts: AC adapter √ Battery (system) √ Intel - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 15
Category Description Hard drive Memory module Optical drive Mini Card components Intel processors with discrete graphics subsystem √ √ √ √ Intel processors with UMA graphics subsystem AMD processors with UMA graphics subsystem √ √ √ √ √ √ √ √ 7 - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 16
(1) TouchPad light ● White: TouchPad is enabled. ● Amber: TouchPad is disabled. (2) TouchPad* Moves the pointer and selects or activates items on the screen. (3) Left TouchPad button* Functions like the left button on an external mouse. (4) TouchPad on/off button Enables/disables the TouchPad - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 17
is not plugged into an external power source, the light stays off until the battery reaches a low battery level. ● Blinking: The hard drive or optical drive (select models only) is being accessed. ● On: HP ProtectSmart Hard Drive Protection has temporarily parked the internal hard drive, and if - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 18
Component Description (8) Num lock light (9) Wireless light On: Num lock is on or the embedded numeric keypad is enabled. ● Blue: An integrated wireless device, such as a wireless local area network (WLAN) device and/or a Bluetooth® device, is on. ● Amber: All wireless devices are off. *The 2 - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 19
or DVDPlay launches after you log on. Refer to the QuickPlay or DVDPlay software Help for more information. (4) Volume mute button Mutes and restores speaker sound. (5) Volume information about changing factory settings, refer to the user guides located in Help and Support. Top components 11 - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 20
Keys NOTE: Your computer may look slightly different from the illustration in this section. Component (1) esc key (2) fn key (3) Windows logo key (4) Windows applications key (5) Embedded numeric keypad keys (6) Function keys Description Displays system information when pressed in combination with - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 21
Turns off the display if the display is closed while the computer is turned on. Record sound. On: The integrated webcam is in use. Records video and captures still photographs. Top components 13 - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 22
is not plugged into an external power source, the light stays off until the battery reaches a low battery level. ● Blinking: The hard drive or optical drive (select models only) is being accessed. ● On: HP ProtectSmart Hard Drive Protection has temporarily parked the internal hard drive, and if - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 23
bay (2) USB ports (2) (3) TV antenna/cable jack (select models only) (4) RJ-11 (modem) jack (select models only) (5) Power connector Description Supports an optical drive or hard drive. Connect optional USB devices. Connects a TV antenna, a digital cable device, or a satellite device that receives - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 24
cable. Connects an optional video or audio device, such as card is being accessed. Supports the following optional digital card formats: ● Memory Stick (MS) ● Memory Stick Pro (MSP) ● MultiMediaCard (MMC) ● Secure Digital (SD) Memory Card ● xD-Picture Card (XD) Supports optional ExpressCard/54 cards - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 25
Help and Support. Releases the swappable bay module. Contains the 2 memory module slots. On select models, holds a wireless WAN (WWAN) module and/or the TV tuner card , and then contact technical support through Help and Support. Releases the battery from the battery bay. Contains a subscriber - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 26
regulatory notices, refer to the section of the Regulatory, Safety and Environmental Notices that applies to your country or region. These notices are located in Help and Support. 18 Chapter 2 External component identification - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 27
3 Illustrated parts catalog Serial number location When ordering parts or requesting information, provide the computer serial number and model number located on the bottom of the computer. Serial number location 19 - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 28
Computer major components Item Description Spare part number (1) Display assemblies (see Display assembly components on page 26 for display assembly spare part component information) 20 Chapter 3 Illustrated parts catalog - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 29
Item (2) Description Keyboards For use with standard computer models: ● Brazil ● Denmark, Finland, Norway, and Sweden ● France Sweden ● France ● French Canada ● Germany ● Greece ● International ● Israel Spare part number 486901-201 486901-DH1 486901-051 486901-121 486901-041 486901-151 486901-B31 - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 30
Taiwan ● Thailand ● Turkey ● The United Kingdom ● The United States Spare part number 495646-061 495646-291 495646-161 495646-A41 495646-131 495646-251 495646 495646-111 495646-AB1 495646-281 495646-141 495646-031 495646-001 Keyboard covers ● For use with standard computer models ● For use with - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 31
for Plastics Kit spare part component information) ExpressCard slot bezel Hard drive bay cover Memory module compartment cover Wireless MB ● 1024-MB ● 512-MB 482169-001 482168-001 482167-001 RTC battery 486835-001 Audio board (includes audio connectors, infrared lens, and audio board cable - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 32
a modem 495667-001 module and TV tuner Batteries ● 12-cell, 8.80-Ah ● 6-cell, 2.55-Ah ● 6-cell, 2.20-Ah 484172-001 484171-001 482186-003 Optical drives (include bezel and bracket) (see Mass storage devices on page 30 for optical drive spare part component information) Hard drives (include hard - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 33
Item Description ● Celeron 575 (2.2GHz) ● Celeron T1600 (1.66-GHz) Spare part number 502838-001 497773-001 Computer major components 25 - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 34
Display assembly components Item Description Spare part number Display assemblies (not illustrated) ● 14.1-inch WXGA, Brightview display assembly with a camera/microphone a camera/microphone module (includes openings for camera module and microphones) 26 Chapter 3 Illustrated parts catalog - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 35
Item Description Spare part number ● For use only with bronze-colored Special Edition computer For use with bronze-colored Special Edition computer models 496729-001 486874-001 Miscellaneous display parts (not illustrated) ● Hinge trim for use on standard computer models with Flush Glass - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 36
with Flush Glass display assemblies ● Display trim for use with bronze-colored Special Edition computer models with Flush Glass display assemblies ● LCD cable for Flush Glass display assemblies ● Microphone cable for Flush Glass display assemblies ● LED transfer board for standard display assemblies - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 37
Plastics Kit Item Description Spare part number Plastics Kit (1) ExpressCard slot bezel 486833-001 (2) Hard drive bay cover (includes 2 captive screws, secured by C-clips) (3) Memory module compartment cover (includes 1 captive screw secured by a C-clip) (4) Wireless module compartment cover ( - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 38
Mass storage devices Item Description Spare part number (1) Hard drives (include hard drive bracket) For use in computer models with AMD processors: ● 500-GB, 5400- in swappable bay in bronze-colored Special Edition computer models (includes metal bracket) 30 Chapter 3 Illustrated parts catalog - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 39
Item Description ● 320-GB, 5400-rpm ● 250-GB, 5400-rpm Spare part number 496728-001 496727-001 Hard drive hardware kits (contains screws, hard drive bracket, and connector; not illustrated) ● Internal hard drive hardware kit 482158-001 ● - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 40
Item Description Spare part number Swappable bay hardware kits for use with bronze-colored Special Edition computer models. Includes pre-attached front bezel. ● Blu kit ● DVD±RW and CD-RW Super Multi Double-Layer Combo Drive hardware kit 495656-001 32 Chapter 3 Illustrated parts catalog - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 41
Miscellaneous parts Description Spare part number AC adapters ● 90-W PFC AC adapter ● 65-W PFC AC adapter Bluetooth module Cables ● Audio cable ● Bluetooth ● Italy 490371-061 ● Japan 490371-291 ● The People's Republic of China 490371-AA1 ● South Africa 490371-AR1 Miscellaneous parts 33 - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 42
WWAN 486845-001 TouchPad (include TouchPad bracket and TouchPad cable) 494960-001 TouchPad button 486832-001 TouchPad bracket (included with top cover spare part kits and with TouchPad) 494961-001 TV tuners ● ATSC/NTSC TV tuner antenna ● TV tuner antenna with PAL jack ● ATSC/NTSC TV tuner - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 43
Description Spare part number Kazakhstan, Kenya, Kiribati, Kuwait, Kyrgyzstan, Laos, Latvia, Lebanon, Lesotho, Liberia, Liechtenstein, Lithuania, Luxembourg, Ghana, Gibraltar, Greece, Grenada, Guadeloupe, Guatemala, Guinea, Guinea-Bissau, Guyana, Haiti, Honduras, Hong Kong, Miscellaneous parts 35 - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 44
Description Spare part number Hungary, Iceland, India, Indonesia, Ireland, Israel, Italy, the Ivory Coast, States and Canada 453730-001 WWAN modules HP EVDO-A WWAN module for use in the United States 451131-002 HP HSPA/BIRDDOG WWAN module 483377-001 HP UMTS/HSDPA/EDGE WWAN module, including - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 45
number listing Spare part number 371693-001 418162-001 418163-001 430958-001 436238-001 451131-002 453730-001 453730-002 Costa Rica, Croatia, Cyprus, the Czech Republic, Denmark, Djibouti, Dominica, the Dominican Republic, East Timor, Ecuador, Egypt, El Salvador, Sequential part number listing 37 - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 46
with Intel processors 1024-MB memory module for use in computer models with AMD processors 2048-MB memory module for use in computer models with Intel processors 2048-MB memory module for use in computer models Intel processors (includes bezel and bracket) 38 Chapter 3 Illustrated parts catalog - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 47
Combo Drive hardware kit for use with standard computer models (includes front bezel) 6-cell battery, 2.20-Ah ATSC/NTSC TV tuner DVB-T/ANG Integrated TV tuner DVB-T tuner ATSC computer models equipped with a SIM card, and not equipped with a fingerprint reader Sequential part number listing 39 - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 48
kit for use with all computer models RTC battery DC-in audio cable Speaker assembly Heat sink models with a modem module and TV tuner Keyboard cover for use with standard computer models Power models with Flush Glass display assemblies LCD cable for Flush Glass display assemblies parts catalog - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 49
in South Korea Keyboard for use with standard computer models for International use Keyboard for use with standard computer models for use in Israel Keyboard for use with standard Monaco, Mongolia, Montenegro, Morocco, Mozambique, Namibia, Nauru, Nepal, the Nether Sequential part number listing 41 - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 50
Spare part number 487345-005 487346-005 487347-005 487348-006 487349-006 487350-004 488105-001 488126-001 488127-001 488128-001 488130-001 488209-001 Power cord for use in Brazil Power cord for use in Japan Power cord for use in The People's Republic of China 42 Chapter 3 Illustrated parts catalog - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 51
TouchPad bracket (included with top cover and TouchPad spare parts kits) Display enclosure for use with standard computer models (2.0-GHz, 2-MB L2 cache) Keyboard for use with bronze-colored Special Edition computer models for use in The United States Keyboard for use with bronze-colored Special - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 52
use with bronze-colored Special Edition computer models not equipped with a fingerprint reader Keyboard cover for use with bronze-colored Special Edition computer models Base enclosure for use in colored Special Edition computer models (includes metal bracket) 44 Chapter 3 Illustrated parts catalog - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 53
Spare part number 496728-001 496729-001 496730-001 496731-001 496732-001 496733-001 496734-001 496735-001 496736-001 496741-001 496742-001 hard drive for use in computer models with Intel processors 500-GB hard drive for use in computer models with Intel processors Sequential part number listing 45 - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 54
Spare part number 499993-001 502591-001 502592-001 502593-001 502597-001 502838-001 504873-001 504784-001 Description 400- , and connector) Intel Celeron 575 processor (2.2GHz) Intel Pentium T3200 processor (2.0GHz) Intel Pentium T3400 processor (2.16GHz) 46 Chapter 3 Illustrated parts catalog - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 55
● Phillips P0 and P1 screwdrivers Service considerations The following sections include some 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 - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 56
Cables and connectors CAUTION: When servicing the computer, be sure that cables are placed in Be sure that cables are routed in such a way that they cannot be caught or snagged by parts being removed or replaced. Handle flex cables with extreme care; these cables tear easily. Drive handling CAUTION - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 57
Grounding guidelines Electrostatic discharge damage Electronic components are sensitive to electrostatic discharge (ESD). Circuitry design and structure determine the degree of sensitivity. Networks built into many integrated circuits provide some protection, but in many cases, ESD contains enough - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 58
and use properly grounded tools and equipment. ● Use conductive field service tools, such as cutters, screwdrivers, and vacuums. ● When as ordinary plastic assembly aids and Styrofoam. ● Handle ESD-sensitive components, parts, and assemblies by the case or PCM laminate. Handle these items only - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 59
with ground cords of one megohm resistance ● Static-dissipative tables or floor mats with hard ties to the ground ● Field service kits ● Static awareness labels ● Material-handling packages ● Nonconductive plastic bags, tubes, or boxes ● Metal tote boxes ● Electrostatic voltage levels and - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 60
Unknown user password If the computer you are servicing has an unknown user password, follow these steps . 4. Remove the battery (see Battery on page 55). 5. Remove the RTC battery (see RTC battery on page 69). 6. Wait approximately 5 minutes. 7. Replace the RTC battery and reassemble the computer - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 61
12 different sizes, that must be removed, replaced, or loosened when servicing the computer. Make special note of each screw size and location during Serial number Report the computer serial number to HP when requesting information or ordering spare parts. The serial number is located on the bottom - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 62
to the base enclosure in the locations illustrated below. Description Rubber Kit for use with all computer models (includes computer feet and screw covers) Spare part number 486834-001 54 Chapter 4 Removal and replacement procedures - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 63
Battery Description ● 12-cell, 8.80-Ah ● 6-cell, 2.55-Ah ● 6-cell, 2.20-Ah Spare part number 484172-001 484171-001 482186-003 Before disassembling the computer, follow these steps: 1. Shut down the computer. If you are unsure whether the computer - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 64
from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 55). Remove the SIM: 1. Press in on the SIM (1). (The module is partially ejected from the SIM slot.) 2. Remove the SIM (2) from - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 65
Optical drive Description Spare part number For use in standard computer models with AMD CD-RW Super Multi Double-Layer Combo Drive hardware kit 495656-001 NOTE: All optical drive spare part kits include an optical drive bezel. Before removing the optical drive, follow these steps: 1. Shut - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 66
the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 55). Remove the optical drive: 1. Position the computer with right side toward you. 2. Slide the swappable bay release latch (1) away - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 67
computer models ● Swappable bay blank for use in standard computer models ● Swappable bay blank for use in bronze-colored Special Edition computer models Spare part number 497184-001 499993-001 459611-004 454605-002 454925-002 454924-002 497775-001 497774-001 459611-005 454605-003 454925-003 454924 - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 68
then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 55). Remove the hard drive: 1. Position the cover (3). The hard drive bay cover is included in the Plastics Kit, spare part number 486833-001. 4. Remove the three black Phillips PM2.0×4.0 screws (1) that - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 69
6. Remove the hard drive from the hard drive bay (4). 7. If it is necessary to replace the hard drive bracket, remove the four Phillips PM3.0×4.0 screws (1) that secure the hard drive bracket to the hard drive. 8. Lift the bracket (2) straight up to remove it from the hard drive. Reverse this - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 70
WLAN module Description Spare part number WLAN modules 802.11a/b/g/n WLAN modules: ● For use in Antigua & Barbuda, Argentina, Aruba, the Bahamas, Barbados, Bermuda, 480985-001 Brunei, Canada, the Cayman Islands, - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 71
Description Spare part number Romania, Russia, Rwanda, Samoa, San Marino, Sao Tome & Principe, warning message, remove the module to restore computer functionality, and then contact technical support through Help and Support. Before removing the WLAN module, follow these steps: 1. Shut down the - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 72
4. Remove the battery (see Battery on page 55). 5. Remove the hard drive bay cover (see Hard drive on page 59) Remove the WLAN module: 1. Disconnect the wireless antenna wires (1) from - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 73
HP HSPA/BIRDDOG WWAN module HP UMTS/HSDPA/EDGE WWAN module, including GPRS Spare part functionality, and then contact technical support through Help and Support. Before removing the WWAN module, AC adapter from the computer. 4. Remove the battery (see Battery on page 55). Remove the WWAN module: - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 74
NOTE: The red WWAN antenna cable is connected to the WWAN module "Main" terminal. The blue WWAN antenna cable is connected to the WWAN module "Aux" terminal. 5. Remove the two Phillips PM2.0×4.0 screws that secure the module to the computer (2). 6. Remove the WWAN module (3) by pulling the module - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 75
1024-MB ● 512-MB Spare part number 482169-002 482168-002 482167-002 482169-001 482168-001 482167-001 Before removing the memory module, follow these steps: 1. AC adapter from the computer. 4. Remove the battery (see Battery on page 55). Remove the memory module: 1. Position the computer with the - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 76
swing it to the left, and remove the cover (3). The memory module compartment cover is included in the Plastics Kit, spare part number 486833-001. 4. Spread the retaining tabs (1) on each side of the memory module slot to release the memory module. (The edge of the module opposite the slot rises - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 77
RTC battery Description RTC battery Spare part number 486835-001 NOTE: Removing the RTC battery and leaving it uninstalled for 5 or more minutes causes all passwords and CMOS settings to be cleared. Before removing the RTC battery, follow these steps: 1. Shut down the computer. If you are unsure - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 78
replacing the display assembly and display assembly internal components replacement part numbers, see Display assembly on page 83. Before and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 55). Remove the camera/microphone module: 1. Turn the computer - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 79
4. Release the camera/microphone module assembly from the display enclosure brackets (1), and lift it out as far as the camera/microphone module cable allows (2). 5. Disconnect the camera/microphone module cable (3) from the camera/microphone module. Reverse this procedure to install the camera/ - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 80
Keyboard Description Keyboards For use with standard computer models: ● Brazil ● Denmark, Finland, Norway, and Sweden Canada ● Germany ● Greece ● International 72 Chapter 4 Removal and replacement procedures Spare part number 486901-201 486901-DH1 486901-051 486901-121 486901-041 486901-151 486901- - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 81
Taiwan ● Thailand ● Turkey ● The United Kingdom ● The United States Spare part number 495646-BB1 495646-061 495646-291 495646-161 495646-A41 495646-131 495646 AC adapter from the computer. 4. Remove the battery (see Battery on page 55). Remove the keyboard: 1. Turn the computer upside down, with the - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 82
front toward you. 4. Open the computer as far as possible. 5. Lift the rear edge of the keyboard (1) until it rests at an angle. 6. Release the keyboard (2) by sliding it back to disengage the tabs on the front edge of the keyboard from the top cover. 74 Chapter 4 Removal and replacement procedures - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 83
7. Release the zero insertion force (ZIF) connector (1) to which the keyboard cable is attached and disconnect the keyboard cable (2) from the system board. 8. Remove the keyboard. Reverse this procedure to install the keyboard. Component replacement procedures 75 - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 84
bronze-colored Special Edition computer models Spare part number 486852-001 495663-001 Before removing the keyboard cover, follow these steps: 1. Shut computer. 4. Remove the battery (see Battery on page 55). 5. Remove the keyboard (see Keyboard on page 72). Remove the keyboard cover: 1. Remove the - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 85
6. Remove the keyboard cover (4). Reverse this procedure to install the keyboard cover. Component replacement procedures 77 - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 86
module Spare part number 483113-001 Battery on page 55). 5. Remove the following components: a. Hard drive (see Hard drive on page 59) b. WLAN cover (see WLAN module on page 62) c. Optical drive (see Optical drive on page 57) d. Keyboard (see Keyboard on page 72) e. Keyboard cover (see Keyboard - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 87
Spare part number Battery on page 55). 5. Remove the following components: a. Hard drive (see Hard drive on page 59) b. Wireless module compartment cover (see WLAN module on page 62) c. Optical drive (see Optical drive on page 57) d. Keyboard (see Keyboard on page 72) e. Keyboard cover (see Keyboard - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 88
5. Lift the speaker assembly (5) straight up to remove it from the computer. Reverse this procedure to install the speaker assembly. 80 Chapter 4 Removal and replacement procedures - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 89
board Description SIM module for models with WWAN Spare part number 486845-001 NOTE: This section applies only Remove the battery (see Battery on page 55). 5. Remove the SIM (see SIM on page 56) 6. Remove the keyboard (see Keyboard on page 72) 7. Remove the keyboard cover (see Keyboard cover on - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 90
Reverse this procedure to install the SIM connector board. 82 Chapter 4 Removal and replacement procedures - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 91
Display assembly Description Spare part number Display assemblies ● 14.1-inch WXGA, Brightview display assembly with a camera/microphone module for 486882-001 use with standard computer models ● 14.1-inch WXGA, Brightview - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 92
-001 Miscellaneous display parts ● Hinge trim for assemblies ● LCD cable for Battery on page 55). 5. Disconnect the wireless antenna cables from the WLAN module (see WLAN module on page 62). 6. Remove the following components: a. Keyboard (see Keyboard on page 72) b. Keyboard cover (see Keyboard - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 93
system board (2). CAUTION: The display assembly will be unsupported when the following screws are removed. To prevent damage to the display assembly, support it before removing the screws. 4. Remove the four Phillips PM2.5×7.0 screws (1) that secure the display assembly to the computer. Component - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 94
5. Remove the display assembly (2). If it is necessary to replace other display assembly components, continue to the section that corresponds to the appropriate display assembly 86 Chapter 4 Removal and replacement procedures - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 95
and remove the display bezel (4). NOTE: See Camera/microphone module for standard display assembly on page 70 for camera/ microphone module replacement instructions. 4. If it is necessary to replace the standard display inverter, release the display inverter (1) from the display enclosure as far as - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 96
5. Disconnect the display panel cable (2) and the backlight cable (3) from the display inverter. 6. Remove the display inverter. 7. If it is necessary to replace the standard display panel, remove the four Phillips PM2.5×6.0 screws (1), and the four Phillips PM2.5×4.0 screws (2) that secure the - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 97
12. Remove the display panel cable (4). 13. If it is necessary to replace the standard display hinges, remove the eight Phillips PM2.0×4.0 screws (1) that secure the hinges to the display panel. 14. Remove the display hinges (2). 15. If it is necessary to replace the standard display wireless - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 98
18. Remove the wireless antenna transceivers and cables (4) from the display enclosure. Reverse this procedure to reassemble and install the standard display assembly. 90 Chapter 4 Removal and replacement procedures - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 99
Flush Glass display assembly 1. If it is necessary to replace the Flush Glass display enclosure or any of the replaceable Flush Glass display assembly components, remove the following screw covers (1) and screws (2): 2. Turn the display assembly over. 3. Slide the display enclosure toward the bottom - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 100
7. Disconnect the camera/microphone module cable (3) from the camera/microphone module. 8. If it is necessary to replace the Flush Glass display panel cable, turn the display assembly over. 9. Release the foil shield covering the display panel cable (1). 10. Remove the tape (2) securing the cable to - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 101
13. If it is necessary to replace the inverter, remove the four Phillips PM2.5×4.0 screws (1) that secure the inverter cover to the display assembly, and remove the inverter cover (2). 14. Release the inverter from the display assembly, and lift as far as the attached cables will allow (1). 15. - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 102
18. Remove the hinges (4). 19. If it is necessary to replace the wireless antenna assembly, remove the two Phillips PM2.5×4.0 screws (1) that secure the transceivers to the display enclosure. 20. Detach the wireless antenna transceivers (2) from the display enclosure. 21. Remove the wireless antenna - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 103
Description Spare part number Top Battery on page 55). 5. Remove the following components: a. Hard drive (see Hard drive on page 59) b. WLAN cover (see WLAN module on page 62) c. Optical drive (see Optical drive on page 57) d. Keyboard (see Keyboard on page 72) e. Keyboard cover (see Keyboard - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 104
2. Remove the three Phillips PM2.5×9.0 screws (1), the two Phillips PM2.5×6.0 screws (2), and the one Phillips PM2.5×4.0 screws (3) that secure the top cover to the computer. 3. Turn the computer right-side up, with the front toward you. 4. Disconnect the Bluetooth module cable (1), the TouchPad - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 105
6. Lift the front edge of the top cover (2) and remove it (3). Reverse this procedure to install the top cover. Component replacement procedures 97 - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 106
part kits and with TouchPad) Spare part Battery on page 55). 5. Remove the following components: a. Hard drive (see Hard drive on page 59) b. WLAN cover (see WLAN module on page 62) c. Optical drive (see Optical drive on page 57) d. Keyboard (see Keyboard on page 72) e. Keyboard cover (see Keyboard - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 107
4. Remove the TouchPad board from the top cover (3). Reverse the above procedure to reassemble and install the TouchPad. Component replacement procedures 99 - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 108
reader Spare part number 486828-001 Battery on page 55). 5. Remove the following components: a. Hard drive (see Hard drive on page 59) b. WLAN cover (see WLAN module on page 62) c. Optical drive (see Optical drive on page 57) d. Keyboard (see Keyboard on page 72) e. Keyboard cover (see Keyboard - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 109
4. Remove the fingerprint reader from the top cover (3). Reverse the above procedure to reassemble and install the fingerprint reader. Component replacement procedures 101 - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 110
New Zealand Spare part number 461749-001 Battery on page 55). 5. Remove the following components: a. Hard drive (see Hard drive on page 59) b. WLAN cover (see WLAN module on page 62) c. Optical drive (see Optical drive on page 57) d. Keyboard (see Keyboard on page 72) e. Keyboard cover (see Keyboard - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 111
3. Lift up on the back of the modem module (3) to disconnect it from the system board. 4. Remove the modem module. Reverse the above procedure to install the modem module. Component replacement procedures 103 - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 112
cable) Spare part number 486840-001 Battery on page 55). 5. Remove the following components: a. Hard drive (see Hard drive on page 59) b. WLAN cover (see WLAN module on page 62) c. Optical drive (see Optical drive on page 57) d. Keyboard (see Keyboard on page 72) e. Keyboard cover (see Keyboard - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 113
3. Remove the audio board (4). Reverse the above procedure to install the audio board. Component replacement procedures 105 - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 114
Spare part number Battery on page 55). 5. Remove the following components: a. Hard drive (see Hard drive on page 59) b. Wireless module compartment cover (see WLAN module on page 62) c. Optical drive (see Optical drive on page 57) d. Keyboard (see Keyboard on page 72) e. Keyboard cover (see Keyboard - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 115
4. Lift the USB board (4) straight up to remove it from the computer. Reverse this procedure to install the USB board. Component replacement procedures 107 - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 116
/NTSC TV tuner ● DVB-T/ANG Integrated TV tuner ● DVB-T tuner Spare part number 482900-001 482900-002 482899-001 482899-002 482899-003 If it has 4. Remove the battery (see Battery on page 55) 5. Remove the keyboard (see Keyboard on page 72) 6. Remove the keyboard cover (see Keyboard cover on page - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 117
2. Remove the cable from the base enclosure clips (2). Reverse this procedure to install the TV tuner antenna cable. Component replacement procedures 109 - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 118
(see Battery on page 55). 5. Remove the following components: a. Hard drive (see Hard drive on page 59) b. Optical drive (see Optical drive on page 57) c. Keyboard (see Keyboard on page 72) d. Keyboard cover (see Keyboard cover on page 76) e. Display assembly (see Display assembly on page 83) f. Top - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 119
2. Disconnect the power connector cable from the system board. 3. Remove the two Phillips PM1.5×9.0 slotted screws (1), and the Phillips PM2.5×4.0 screw (2) that secure the system board to the computer. 4. Use the optical drive connector (1) to lift the right side of the system board until it rests - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 120
board: ● Fan and heat sink assembly (see Fan and heat sink on page 117) ● Processor (see Processor on page 121) ● RTC battery (see RTC battery on page 69) ● Memory modules (see Memory module on page 67) ● WLAN module (see WLAN module on page 62) ● Modem module (see Modem module on page 102) Reverse - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 121
Power button with connector cable Spare part number 486853-001 Before removing the Battery on page 55). 5. Remove the following components: a. Hard drive (see Hard drive on page 59) b. Optical drive (see Optical drive on page 57) c. Keyboard (see Keyboard on page 72) d. Keyboard cover (see Keyboard - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 122
3. Remove the power button board (3). Reverse this procedure to install the power button board. 114 Chapter 4 Removal and replacement procedures - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 123
processors Spare part number 494981-001 Battery on page 55) 5. Remove the following components: a. Hard drive (see Hard drive on page 59) b. WLAN cover (see WLAN module on page 62) c. Optical drive (see Optical drive on page 57) d. Keyboard (see Keyboard on page 72) e. Keyboard cover (see Keyboard - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 124
2. Remove the cable from the base enclosure clips (2). Reverse the preceding procedure to install the modem module cable. 116 Chapter 4 Removal and replacement procedures - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 125
Fan (includes thermal material) Spare part number 486838-001 492262-001 486844-001 Battery on page 55). 5. Remove the following components: a. Hard drive (see Hard drive on page 59) b. Optical drive (see Optical drive on page 57) c. Keyboard (see Keyboard on page 72) d. Keyboard cover (see Keyboard - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 126
3. Lift the fan up (2) to remove. 4. If it is necessary to replace the heat sink, select the section following that relates to the correct system board. 118 Chapter 4 Removal and replacement procedures - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 127
components: heat sink (1), processor (2), heat sink (3), Northbridge clip (4), nVidia video chip (5), and capacitors (6). Thermal pads and thermal paste must be installed system board, and processor spare part kits. Reverse this procedure to install the fan/heat sink assembly. Component - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 128
before the fan and heat sink are reinstalled. Thermal pads and thermal paste are included with all fan, heat sink, system board, and processor spare part kits. Reverse this procedure to install the fan/heat sink assembly. 120 Chapter 4 Removal and replacement procedures - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 129
001 483259-001 483258-001 495639-001 495640-001 491856-001 495638-001 504874-001 504783-001 502838-001 497773-001 NOTE: All processor spare part kits include thermal material. Before removing the processor, follow these steps: 1. Shut down the computer. If you are unsure whether the computer is off - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 130
4. Remove the battery (see Battery on page 55). 5. Remove the following components: a. Hard drive (see Hard drive on page 59) b. Optical drive (see Optical drive on page 57) c. Keyboard (see Keyboard on page 72) d. Keyboard cover (see Keyboard cover on page 76) e. Display assembly (see Display - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 131
! Only authorized technicians trained by HP must repair this equipment. All troubleshooting and repair procedures are detailed to the ESC key for Startup Menu" message is displayed in the lower-left corner of the screen, press f10. - or - 1. Open the Setup Utility by turning on or restarting the - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 132
for Startup Menu" message is displayed in the lower-left corner of the screen, press f10. - or - Open the Setup Utility by turning on or the Setup Utility Because the Setup Utility is not Windows based, it does not support the TouchPad. Navigation and selection are by keystroke. ● To choose a menu - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 133
turning on or restarting the computer. While the "Press the ESC key for Startup Menu" message is displayed in the lower-left corner of the screen, press esc. When the Startup Menu is displayed, press f10. 2. Use the arrow keys to select Exit > Load Setup Defaults, and then press enter. 3. When - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 134
Exiting the Setup Utility You can exit the Setup Utility with or without saving changes. ● To exit the Setup Utility and save your changes from the current session: If the Setup Utility menus are not visible, press esc to return to the menu display. Then use the arrow keys to select Exit > Exit - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 135
Some of the Setup Utility menu items listed in this chapter may not be supported by your computer. Main menu Select System information To do this ● View ● View specification information about the processor, memory size, system BIOS, and keyboard controller version (select models only). Security - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 136
Support Button Sound (select models only) Virtualization Technology Processor C4 State (select models only) LAN Power Saving (select models only) Card enabled, saves power when the computer is in DC mode. Enable/disable Card Reader/1394 Power Saving. When enabled, saves power when the computer is in - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 137
Diagnostics menu Select Hard Disk Self Test Secondary Hard Disk Self Test (select models only) Memory Test To do this Run a comprehensive self-test on the hard drive. NOTE: On models with two hard drives, this menu option is called the - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 138
to back) 2.60 to 3.90 cm 1.02 to 1.54 in Width 33.40 cm Depth 23.70 cm Weight (with optical drive, hard drive, and battery) 2.49 kg Input power 13.15 in 9.33 in 5.49 lbs Operating voltage Operating current Temperature Operating (not writing to optical disc) Operating (writing to - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 139
Metric U.S. Nonoperating 1.50 g zero-to-peak, 10 Hz to 500 Hz, 0.5 oct/min sweep rate NOTE: Applicable product safety standards specify thermal limits for plastic surfaces. The computer operates well within this range of temperatures. 14.1-inch, WXGA, BrightView display specifications - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 140
237,937,274 Disk rotational speed 5400 rpm Operating temperature 5°C to 55°C (41°F to 131°F) NOTE: Certain restrictions and exclusions apply. Consult technical support for details. 3 ms 13 ms 24 ms 158,624,849 *1 GB = 1 billion bytes when referring to hard drive storage capacity. Accessible - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 141
Drive with SuperMulti DVD±R/RW Double Layer support specifications Applicable disc Access time Random Cache CD+(E)G, CD-MIDI, CDTEXT, CD-ROM, CD-ROM XA, MIXED MODE CD, CD-I, CD-I Bridge (Photo-CD, Video CD), Multisession CD (Photo-CD, CD-EXTRA, Portfolio, CD-R, CD-RW), CD-R, CD-RW, DVDROM (DVD-5, - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 142
ROM Drive with SuperMulti DVD±R/RW Double-Layer (DL) support specifications Applicable disc Access time Random Cache buffer Data , CDTEXT, CD-ROM, CD-ROM XA, MIXED MODE CD, CD-I, CD-I Bridge (Photo-CD, Video CD), Multisession CD (Photo-CD, CD-EXTRA, Portfolio, CD-R, CD-RW), CD-R, CD-RW, DVDROM - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 143
-RAM Transfer mode Read: Write: CD-DA, CD+(E)G, CD-MIDI, CD-TEXT, CD-ROM, CD-ROM XA, MIXED MODE CD, CD-I, CD-I Bridge (Photo-CD, Video CD), Multisession CD (Photo-CD, CDEXTRA, Portfolio, CD-R, CD-RW), CD-R, CD-RW, DVD-ROM (DVD-5, DVD-9, DVD-10, DVD-18), DVD-R, DVD-RW, DVD - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 144
+R DL DVD-RAM HD-DVD Transfer mode Read: Write: CD-ROM XA, CD Digital Audio, CD EXTRA, CD-I, CDI Ready, Photo-CD (Single and Multisession), Video CD, DVD (Single and double layer), DVD-R, DVD-RW, DVD+R, DVD+R DL, DVD-R DL, DVD+RW, DVD-RAM (Ver 1.0/2.1), HD-DVD-ROM CD-RW DVD - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 145
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. †Not assigned for computer models with AMD processors - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 146
IRQ1 System timer Standard 101-/102-Key or Microsoft® Natural Keyboard IRQ2 IRQ3 IRQ4 IRQ5* IRQ6 IRQ7* IRQ8 Cascaded Intel 82801DB configuration; audio possible configurations are IRQ5, IRQ7, IRQ9, IRQ10, or none. NOTE: PC Cards may assert IRQ3, IRQ4, IRQ5, IRQ7, IRQ9, IRQ10, IRQ11, or IRQ15. - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 147
Microsoft Natural PS/2 Keyboard High precision event timer Alps Pointing-device (2 way) Numeric data processor ATA Channel 0 ATA Channel 1 Ricoh OHCI Compliant IEEE 1394 Host Controller Ricoh Memory Stick Controller Ricoh SD/MMC Host Controller Ricoh xD-Picture Card Controller SDA Standard Compliant - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 148
controller no. 1 Opti chipset configuration registers Unused 87334 "Super I/O" configuration for 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 System Function - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 149
- 3FF CF8 - CFB CFC - CFF System function (shipping configuration) Entertainment audio Unused Unused Unused Unused Unused Unused Reserved serial port Unused Infrared port Unused OPL3 Unused VGA Reserved (parallel port/no EPP support) VGA PC Card controller in CPU Unused Internal modem "A" diskette - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 150
PS/2 Keyboard Motherboard resources Microsoft ACPI-Compliant Embedded Controller Motherboard resources Motherboard resources Motherboard resources Motherboard resources Direct memory access controller Direct memory access controller Direct memory access controller Direct memory access controller - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 151
resources ATA Channel 1 nVidia MCP67M nVidia MCP67M ATA Channel 0 Motherboard resources PCI bus Motherboard resources Motherboard resources Motherboard resources Motherboard resources Motherboard resources Motherboard resources nVidia nFOrce PCI System Management nVidia nFOrce PCI System Management - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 152
64 KB 15 MB 58 MB 58 MB 2 MB 4 GB 64 KB Memory address 00000000-0009FFFF 000A0000-000BFFFF 000C0000-000CBFFF 000C8000-000E7FFF 000E8000-000FFFFF 00100000-00FFFFFF function Base memory Video memory Video BIOS Unused System BIOS Extended memory Super extended memory Unused Video memory (direct access - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 153
bus PCI bus PCI bus PCI bus PCI bus PCI bus nVidia MCP67M Motherboard resources PCI standard PCI-to-PCI bridge nVidia MCP67M nVidia MCP67M Broadcom 802.11b Ricoh SD/MMC Host Controller Ricoh Memory Stick Controller Ricoh xD-Picture Card Controller nVidia nForce System Management Controller - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 154
Memory address (hex) F6487000 - F6487FFF F6488000 - F6488FFF F6489000 - F64890FF FF6489400 - F64894FF F6489800 - F648980F F6489C00 - F6489CFF FEC00000 - FEC00FFF FEC80000 - FEC80FFF FED00000 - FED003FF FEE00000 - FEEFFFFF FEF00000 - FEF00FFF FFC00000 - - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 155
available in the Screw Kits. Description Screw Kits (includes all screws) ● For use with standard display assemblies ● For use with Flush Glass display assemblies Spare part number 486873-001 496731-001 147 - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 156
Phillips PM1.5×9.0 slotted screw Color Black Quantity 2 Length 9.0 mm Thread 1.5 mm Head diameter 4.0 mm Where used: Two slotted screws that secure the system board to the base enclosure 148 Chapter 7 Screw listing - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 157
Phillips PM2.0×3.0 broadhead screw Color Black Quantity 2 Length 3.0 mm Thread 2.0 mm Head diameter 7.0 mm Where used: Two broadhead screws that secure the fingerprint reader board to the top cover Phillips PM2.0×3.0 broadhead screw 149 - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 158
Phillips PM2.0×4.0 screw Color Black Quantity 23 Length 4.0 mm Thread 2.0 mm Head diameter 5.0 mm Where used: Two screws that secure the modem module to the computer Where used: Two screws that secure the optical drive to the computer 150 Chapter 7 Screw listing - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 159
Where used: Two screws that secure the keyboard cover to the computer Where used: One screw that secures the power button board to the computer Where used: One screw that secures the Bluetooth module to the computer Phillips PM2.0×4.0 screw 151 - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 160
Where used: Eight screws that secure the display assembly hinge to the computer Where used: Three screws that secure the hard drive to the computer Where used: Two screws that secure the WLAN module to the computer 152 Chapter 7 Screw listing - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 161
Where used: Two screws that secure the WWAN module to the computer Phillips PM2.0×4.0 screw 153 - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 162
Phillips PM2.0×10.0 captive screw Color Silver Quantity 4 Length 10.0 mm Thread 2.0 mm Head diameter 5.0 mm Where used: Four captive screws (secured by C-clips) that secure the heat sink assembly to the system board 154 Chapter 7 Screw listing - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 163
Phillips PM2.5×3.0 screw Color Black Quantity 3 Length 3.0 mm Thread 2.5 mm Head diameter 4.0 mm Where used: Three screws that secure the keyboard cover to the computer Phillips PM2.5×3.0 screw 155 - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 164
Phillips PM2.5×4.0 screw Color Black Quantity 38 Length 4.0 mm Thread 2.5 mm Head diameter 5.0 mm Where used: One screw that secures the USB board to the computer Where used: Three screws that secure the top cover to the computer 156 Chapter 7 Screw listing - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 165
Where used: One screw that secures the system board to the base enclosure Where used: Two screws that secure the wireless antenna transceivers to the display enclosure Where used: One screw that secures the top cover to the computer Phillips PM2.5×4.0 screw 157 - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 166
to the display assembly Where used: Two screws that secure the SIM connector board to the system board Where used: One screw that secures the keyboard cover to the top cover Where used: Five screws that secure the TouchPad to the top cover 158 Chapter 7 Screw listing - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 167
Where used: Two screws that secure the audio board to the computer Where used: Two screws that secure the speaker assembly to the computer Where used: Two screws that secure the fan to the system board Phillips PM2.5×4.0 screw 159 - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 168
Where used: Two screws that secure the camera/microphone module to the Flush Glass display assembly Where used: Four screws that secure the inverter cover to the Flush Glass display assembly Where used: Six screws that secure the hinge to the Flush Glass display assembly 160 Chapter 7 Screw listing - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 169
Phillips PM2.5×6.0 screw Color Black Quantity 8 Length 6.0 mm Thread 2.5 mm Head diameter 4.0 mm Where used: Two screws that secure the top cover to the computer Where used: Four screws that secure the display bracket to the display assembly Phillips PM2.5×6.0 screw 161 - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 170
Where used: Two screws that secure the enclosure to the Flush Glass display assembly 162 Chapter 7 Screw listing - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 171
Phillips PM2.5×6.0 captive screw Color Black Quantity 4 Length 6.0 mm Thread 2.5 mm Head diameter 5.0 mm Where used: Four captive screws that secure the hard drive, memory, and WWAN covers to the computer Phillips PM2.5×6.0 captive screw 163 - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 172
Phillips PM2.5×7.0 screw Color Black Quantity 4 Length 7.0 mm Thread 2.5 mm Head diameter 5.0 mm Where used: Two screws securing the keyboard cover to the computer Where used: Two screws that secure the bezel to the display assembly 164 Chapter 7 Screw listing - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 173
Phillips PM2.5×9.0 screw Color Black Quantity 6 Length 9.0 mm Thread 2.5 mm Head diameter 4.0 mm Where used: Three screws that secure the top cover to the computer Where used: One screw that secures the keyboard to the computer Phillips PM2.5×9.0 screw 165 - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 174
Where used: One screw that secures the keyboard cover to the top cover Where used: One screw that secures the speaker assembly to the top cover 166 Chapter 7 Screw listing - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 175
Phillips PM2.5×17.0 screw Color Black Quantity 2 Length 17.0 mm Thread 2.5 mm Head diameter 4.0 mm Where used: Two screws that secure the keyboard to the computer Phillips PM2.5×17.0 screw 167 - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 176
Phillips PM3.0×4.0 screw Color Silver Quantity 4 Length 4.0 mm Thread 3.0 mm Head diameter 5.0 mm Where used: Four screws that secure the hard drive bracket to the hard drive 168 Chapter 7 Screw listing - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 177
system failure is as complete as your most current backup. HP recommends that you create recovery discs immediately after software setup. ● Recovering a program or driver (Recovery Manager software feature). This feature helps you reinstall a program or driver without performing a full system - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 178
Creating recovery discs NOTE: HP recommends that you create recovery discs to be sure the computer on battery power, you will be prompted to connect to AC power before you can go to the next step. 3. Click Recovery disc creation, and then click Next. 4. Follow the on-screen instructions. 170 Chapter - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 179
and back up these folders periodically. ● Back up templates stored in their associated programs. ● Save customized settings in a window, toolbar, or menu bar by taking a screen shot of your settings. The screen shot can be a time saver if you have to reset your preferences. To copy the - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 180
points, select the disk for which you want to create a restore point. 5. Click Create. The System Protection window opens. 6. Follow the on-screen instructions. Restore to a previous date and time To revert to a restore point (created at a previous date and time), when the computer was functioning - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 181
have previously backed up. HP recommends that you use in repair features, such as System Restore and driver roll-back capabilities. If you have not already drive and restart the computer. 3. Follow the on-screen instructions. Recovering from the dedicated recovery partition (select models only - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 182
9 Connector pin assignments Audio-in (microphone) Pin Signal 1 Audio signal in 2 Audio signal in 3 Ground 174 Chapter 9 Connector pin assignments - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 183
Audio-out (headphone) Pin Signal 1 Audio out, left channel 2 Audio out, right channel 3 Ground Audio-out (headphone) 175 - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 184
External monitor Pin Signal 1 Red analog 2 Green analog 3 Blue analog 4 Not connected 5 Ground 6 Ground analog 7 Ground analog 8 Ground analog 9 +5 VDC 10 Ground 11 Monitor detect 12 DDC 2B data 13 Horizontal sync 14 Vertical sync 15 DDC 2B clock 176 Chapter 9 - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 185
RJ-11 (modem) Pin Signal 1 Unused 2 Tip 3 Ring 4 Unused 5 Unused 6 Unused RJ-11 (modem) 177 - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 186
RJ-45 (network) Pin Signal 1 Transmit + 2 Transmit - 3 Receive + 4 Unused 5 Unused 6 Receive - 7 Unused 8 Unused 178 Chapter 9 Connector pin assignments - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 187
HDMI Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 Signal Transition minimized differential signal (TDMS) data 2+ Transition minimized differential signal (TDMS) data 2 shield Transition minimized differential signal (TDMS) data 2Transition minimized differential signal (TDMS) data 1+ - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 188
Universal Serial Bus Pin Signal 1 +5 VDC 2 Data - 3 Data + 4 Ground 180 Chapter 9 Connector pin assignments - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 189
10 Power cord set requirements The wide range input feature of the computer permits it to operate from any line voltage from 100 to 120 volts AC or from 220 to 240 volts AC. The 3-conductor power cord set included with the computer meets the requirements for use in the country or region where the - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 190
Requirements for specific countries or regions Country/region Accredited agency Applicable note number Australia EANSW 1 Austria OVE 1 Belgium CEBC 1 Canada CSA 2 Denmark DEMKO 1 Finland FIMKO 1 France UTE 1 Germany VDE 1 Italy IMQ 1 Japan METI 3 The Netherlands - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 191
battery in general household waste. Follow the local laws and regulations in your area for computer battery . NOTE: Materials Disposal. This HP product contains mercury in the backlight display (LCD) panel (2). NOTE: The procedures provided in this appendix are general disassembly instructions. - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 192
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. 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 - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 193
4. Disconnect all display panel cables (1) from the display inverter and remove the inverter (2). 5. Remove all screws (1) that secure the display panel assembly to the display enclosure. 6. Remove the display panel assembly (2) from the display enclosure. 7. Turn the display panel assembly upside - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 194
10. Remove the display panel frame (2) from the display panel. 11. Remove the screws (1) that secure the backlight cover to the display panel. 12. Lift the top edge of the backlight cover (2) and swing it outward. 13. Remove the backlight cover. 14. Turn the display panel right-side up. 186 Chapter - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 195
15. Remove the backlight cables (1) from the clip (2) in the display panel. 16. Turn the display panel upside down. 17. Remove the backlight frame from the display panel. WARNING! The backlight contains mercury. Exercise caution when removing and handling the backlight to avoid damaging this - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 196
. 20. Remove the screws (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. 23. Remove the LCD panel. 24. Recycle the LCD panel and backlight. 188 Chapter 11 - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 197
Utility language 124 chipset, product description 2 CMOS clearing 52 compartments memory module 17 Mini Card 17 components bottom 17 front 14 left-side 16 rear 15 right-side 15 top 8 computer feet locations 54 spare part number 54 Computer Setup restoring defaults 124 computer specifications 130 - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 198
USB) 180 connector, power 15 connectors, service considerations 48 D Diagnostics menu 129 digital part number 27, 83 display switch, identifying 13 displaying system information 125 docking support, ExpressCard slot, identifying 16 external media cards, product description 5 external monitor port - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 199
description 6 removal 72 spare part numbers 21, 72 Keyboard cover removal 76 spare part numbers 76 keypad keys, identifying 12 keys esc 12 fn 12 function 12 keypad 12 Windows applications 12 Windows logo 12 L LAN Power Saving 128 language support 128 latch battery release 17 swappable bay release - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 200
description 1 removal 121 spare part numbers 24, 121 Processor C4 State 128 product description audio 4 camera/microphone 4 chipset 2 display panel 3 docking support 6 Ethernet 4 external media cards 5 graphics 2 hard drives 3 internal cards 5 keyboard 6 memory module 3 microphone 4 modem module - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 201
number 36, 65 U Universal Serial Bus (USB) port, pin assignments 180 unknown password 52 USB board removal 106 spare part number 23, 106 USB ports, identifying 15 using system restore 171 V vents, identifying 15, 17 Virtualization Technology 128 volume down light, identifying 9 volume mute button - HP Dv4-1124nr | HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 202
HP Pavilion dv4 Entertainment PC
Maintenance and Service Guide