HP dx2100 HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition
HP dx2100 - Microtower PC Manual
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- HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 1
service reference guide HP Compaq dx2100 MT Business PC 1st Edition This document provides information on the removal and replacement of all parts as well as information on troubleshooting, Desktop Management, setup utilities, ATA drives, safety, routine care, connector pin assignments, POST error - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 2
- HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 3
Service Reference Guide HP Compaq dx2100 MT Business PC 1st Edition Document Part Number: 404569-001 November 2005 - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 4
of life. Ä CAUTION: Text set off in this manner indicates that failure to follow directions could result in damage to equipment or loss of information. Service Reference Guide HP Compaq dx20100 MT Business PC s First Edition (November 2005) Document Part Number: 404569-001 - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 5
Contents 1 Installing the Operating System 1.1 Microsoft Windows XP 1-1 1.1.1 Installing or Upgrading Device Drivers 1-1 1.2 Converting to NTFS 1-2 1.2.1 Windows XP Home and XP Professional 1-2 1.3 HP Software 1-2 2 Setup Utilities and Diagnostics Features 2.1 Power-On Self-Test (POST 2-1 2.2 - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 6
SATA SMART Drives 4-4 4.7 Drive Capacities 4-4 4.8 SATA BIOS 4-5 4.8.1 Legacy Mode 4-5 4.8.2 Native Mode 4-6 5 Identifying the Chassis, Routine Care, and Disassembly Preparation 5.1 Chassis Designations 5-1 5.1.1 Microtower (MT Drive 6-14 iv 404569-001 Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 7
Holder 6-23 6.15.2Type 2 Battery Holder 6-24 6.15.3Type 3 Battery Holder 6-25 6.16Power Supply 6-26 A Connector Pin Assignments B Power Cord Set Requirements C POST Error Messages D Troubleshooting Without Diagnostics E Memory Index Service Reference Guide, dx2100 MT 404569-001 v - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 8
Contents vi 404569-001 Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 9
specification with C:\I386 or use the Browse button of the dialog box to browse the computer for the I386 folder. This action points to the appropriate drivers. The latest support software is also available from the Web site at http://www.hp.com/support. Service Reference Guide, dx2100 MT 404569 - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 10
latest version of these files, in English and selected other languages, in one of these ways: ■ HP web site at www.hp.com ■ Restore Plus! CD, which is supplied with many Compaq models ✎ Additional HP software may be required in certain situations. 1-2 404569-001 Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 11
computer system when contacting Customer Support. These tools can also be this chapter may not be available on all HP products. 2.1 Power-On Self-Test (POST system is functioning properly: ■ Keyboard ■ Memory modules ■ Diskette drives ■ All IDE (ATA Service Reference Guide, dx2100 MT 404569-001 2-1 - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 12
BIOS Features, Advanced Chipset Features, Integrated Peripherals, Power Management Setup, PnP/PCI Configurations, PC Health Status, Load Optimized Defaults, Set Supervisor Password, Set User Password, Save and Exit Setup, and Exit Without Saving. 2-2 404569-001 Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 13
changes because the CMOS could become corrupted. It is safe to turn off all power to the computer after you exit the F10 Setup screen. Service Reference Guide, dx2100 MT 404569-001 2-3 - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 14
and head on selected channel • set IDE on selected channel to: • None • Auto • Manual • set access mode on selected channel to: • CHS • LBA • Large • Auto • view • Firmware version • Capacity • Cylinder • Head • Precomp • Landing Zone • Sector 2-4 404569-001 Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 15
- disables SATA Controller • Combined Mode - enables 1 PATA and 1 SATA channel • Enhanced Mode - enables 1 PATA and 2 SATA channels Allows you to determine if PATA device belongs to the Primary or Secondary channel. Displays the SATA port settings. Service Reference Guide, dx2100 MT 404569-001 - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 16
Setup Utilities and Diagnostics Features Heading Standard CMOS Features (continued) Option SATA Ch 0 Master SATA Ch 1 Master Floppy Controller Drive A Halt On Description For each • All but Keyboard • All but Diskette • All but Diskette/Keyboard 2-6 404569-001 Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 17
Boot BIOS Features Disabling Removable Device Boot Priority Hard Disk Boot Priority Optical Drive Boot Priority Network Boot Drive • Network • Disabled ✎ MS-DOS drive lettering assignments may not apply after a non-MS-DOS operating system has started. Service Reference Guide, dx2100 MT 404569- - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 18
an OS2 operating system with greater than 64MB of RAM on the system. Disables/enables BIOS upgrading. Allows you to set PCI Express Port 1 to memory size to: • 64MB • 128MB Allows you to set initial PCI clock detection to: • PCI Slot • Onboard 2-8 404569-001 Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 19
Detect PCI Clk Spread Spectrum USB Controller USB Legacy Support Onboard audio Onboard LAN Onboard LAN Boot ROM Onboard Serial set type of ACPI suspend to: • S1 (POS) • S3 (STR) • S1 & S3 Allows you to set power button to: • Instant off • Delay 4 seconds Service Reference Guide, dx2100 MT 404569 - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 20
Resume by Alarm Date (of Month) Manual BIOS can automatically configure all the bootable and Plugand-Play-compatible devices. If you choose Auto, you cannot select IRQ, DMA and memory base address fields since BIOS automatically assigns them. 2-10 404569-001 Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 21
CPU Temperature CPU Fan Speed System Fan Speed SYS Fan Fault Check Description When resources are controlled manually, allows you to assign each system interrupt a type, depending on the type of device using the interrupt. Legacy ISA for devices compliant with the original PC AT bus specification - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 22
://www.hp.com under the Software & Driver Downloads for your specific model. Download the firmware Type N:\folder\BIOS.exe LOAD:ABC001 (where N is the drive letter of the removable storage) to load the custom CMOS setting onto the target system. 2-12 404569-001 Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 23
to ensure the operating integrity of the computer. Should you need or want to upgrade the BIOS, you may download the latest BIOS images from the HP driver and support page: http://www.hp.com/support. Ä CAUTION: For maximum ROM protection, be sure to establish a supervisor password. The supervisor - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 24
the BIOS. 5. Turn the power on to restart the computer. 3.2.2 Dual-State Power Button With Advanced Configuration and Power Interface (ACPI) enabled for Windows XP, the power Properties, right click on the Windows Desktop, then choose Properties. 3-2 404569-001 Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 25
and installing the latest support software easier. You can download the software from http://www.hp.com/support. The Web site contains the latest device drivers, utilities, and flashable If you are in Windows, click Start > Shut Down > Restart. Service Reference Guide, dx2100 MT 404569-001 3-3 - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 26
Desktop -disregard it. 3. Select Set User Password and follow the instructions on the screen. 4. Before exiting, click Save and Exit the monitor, type your current password, then press Enter. ✎ Type carefully; for security reasons, the characters you type do not Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 27
Desktop Management ✎ If you do not you may see a Keyboard Error message-disregard it. 3. When the key icon appears, type your current password current password/ 4. Press the Enter key to disable the password.. ✎ Security options in Computer Setup. Service Reference Guide, dx2100 MT 404569-001 3-5 - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 28
Desktop Management National Keyboard Delimiter Characters Each keyboard is designed to meet country-specific requirements. The syntax and keys that you use for changing or deleting to 2000 volts without incurring any system downtime or data loss. 3-6 404569-001 Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 29
ATA = SATA Parallel ATA = PATA HP does not support the use of a PATA (IDE) hard drive on this model of computer. 4.1 SATA Hard Drives 1.5 Gb/s ✎ When attaching the SATA cable to the system board always connect the primary hard drive to SATA 0. Service Reference Guide, dx2100 MT 404569-001 4-1 - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 30
SATA Hard Drive Cables 4.2.1 SATA Data Cable Always use an HP approved SATA 3.0 Gb/s cable as it is fully backwards compatible with the SATA 1.5 Gb/s drives. SATA data cables are susceptible to damage if overflexed. Never crease a SATA 12 V power 4-2 404569-001 Service Reference Guide, dcx210 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 31
to optical drives in a computer having one or two SATA drive controllers and a single PATA drive controller. PATA hard drives are not supported on these models. 4.4 PATA Cables 4.4.1 PATA Data not included as a part of the maximum four ATA drives. Service Reference Guide, dx2100 MT 404569-001 4-3 - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 32
by the operating system may differ from that marked on the hard drive or listed in the computer specification. Drive size calculations by drive manufacturers are bytes to the base 10 while calculations by Microsoft are bytes to the base 2. 4-4 404569-001 Service Reference Guide, dcx210 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 33
Type ATA ATA Operating System Windows 2000/ XP Windows NT/2000/XP Maximum Size Partition 32 GB 2 TB Drive 128 PB 128 PB 4.8 SATA BIOS Windows 2000 and XP Enhanced Mode (default BIOS ❏ Command block: 170h - 177h ❏ Control block: 376h ❏ IRQ: 15 Service Reference Guide, dx2100 MT 404569-001 4-5 - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 34
attached to additional ATA controllers and is not supported by many legacy operating systems. Addresses are assigned by PCI Plug-n-Play BIOS and the IRQ is shared with multiple controllers. address ■ Offset 1Ch-Secondary Control base address 4-6 404569-001 Service Reference Guide, dcx210 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 35
to the procedures and precautions described in this chapter is essential for proper service. Ä CAUTION: When the computer is plugged into an AC power source voltage system board or component damage. 5.1 Chassis Designations 5.1.1 Microtower (MT) Service Reference Guide, dx2100 MT 404569-001 5-1 - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 36
been degraded in the internal layers, reducing its life expectancy. Networks built into many integrated circuits provide some protection, but in parts in their containers until they arrive at static-free stations. ■ Place items on a grounded surface 5-2 404569-001 Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 37
can be used at standing workstations and are compatible with most types of shoes or boots. On conductive floors or dissipative floor case or PCB laminate. Handle them only at static-free work areas. ■ Turn off power and input signals service kits Service Reference Guide, dx2100 MT 404569-001 5-3 - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 38
light stains or dirt, use plain water with a clean, lint-free cloth or swab. ■ For stronger stains, use a mild free cloth. ■ Occasionally clean the air vents on the computer. Lint and other foreign matter can block the vents and limit the airflow. 5-4 404569-001 Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 39
socket and wipe the ball with a clean, dry cloth before reassembly. ■ To clean the mouse body, follow the procedures in Section 5.3.2, "Cleaning the Computer Case." Service Reference Guide, dx2100 MT 404569-001 5-5 - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 40
when the computer is "ON" or in "Suspend to RAM" modes. The cooling fan is off when the computer is service the computer, you need the following: ■ Torx T-15 screwdriver (Compaq process, it can damage the unit. HP strongly recommends that all screws removed during Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 41
in their protective packaging until they are actually mounted in the CPU. ■ Avoid dropping drives from any height onto any surface. the chassis you are working on in this guide for instructions on the replacement procedures. Å WARNING: This Service Reference Guide, dx2100 MT 404569-001 5-7 - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 42
Identifying the Chassis, Routine Care, and Disassembly Preparation 5-8 404569-001 Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 43
and Replacement Procedures- Microtower (MT) Chassis Adherence to the procedures and precautions described in this chapter is essential for proper service. After completing all necessary using the wrong screw in an application may damage the unit. Service Reference Guide, dx2100 MT 404569-001 6-1 - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 44
Removal and Replacement Procedures- Microtower (MT) Chassis 6.2 Access Panel 1. Prepare the computer for disassembly (Section 6.1, "Preparation for Disassembly"). Ä CAUTION: off the unit 3. To replace the access panel, reverse the removal steps. 6-2 404569-001 Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 45
Removal and Replacement Procedures- Microtower (MT) Chassis 6.3 Front Bezel 1. Prepare the computer for disassembly (Section 6.1, "Preparation for Disassembly"). 2. Remove the chassis. To reinstall the front bezel, reverse the removal procedure. Service Reference Guide, dx2100 MT 404569-001 6-3 - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 46
Removal and Replacement Procedures- Microtower (MT) Chassis 6.4 Front Drive Bezels 1. Prepare the computer for disassembly (Section 6.1, "Preparation for Disassembly"). 2. Remove the bezel. To install a bezel blank, reverse the removal procedure. 6-4 404569-001 Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 47
a module into the socket nearest the preinstalled module, and install the modules following the numerical order of the sockets. ✎ A memory module can be installed in only one way. Match the notch on the module with the tab on the memory socket. Service Reference Guide, dx2100 MT 404569-001 6-5 - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 48
Removal and Replacement Procedures- Microtower (MT) Chassis 5. Push the module down into the socket, ensuring that the module is fully any additional modules that you want to install. To reassemble the computer, reverse the removal procedure. 6-6 404569-001 Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 49
Removal and Replacement Procedures- Microtower (MT) Chassis 6.6 Expansion Cards 6.6.1 Expansion each end and carefully rock it back and forth until the connectors pull free from the socket. Be sure not to scrape the card against other components Service Reference Guide, dx2100 MT 404569-001 6-7 - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 50
Removal and Replacement Procedures- Microtower (MT) Chassis 9. With the card aligned so the mounting bracket will fit firmly against the computer . Connect external cables to the installed card, if needed. Reconfigure the computer, if necessary. 6-8 404569-001 Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 51
Microtower (MT) Chassis 6.7 Cable Management Always follow good cable management practices when working inside the computer. ■ Keep cables away from major heat sources like the heatsink. ■ Do not jam cables on top of expansion cards or memory . Service Reference Guide, dx2100 MT 404569-001 6-9 - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 52
board System board System board System board System board System board Cable Designator P3 P5 P1 P2 P3 P4 P6 P7 PCA Designator FDD1 (Black) SATA 0 (Black) SATA 1 (Black) P10 (Blue) CN8 (Black) P2 P1 (Brown) J94 P7 P11 (White) 6-10 404569-001 Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 53
the Compaq factory-installed files. 6.8.1 Drive Positions Drive Positions Item Description Item Description 1 Optical drive 3 Hard drive 2 Optical or diskette drive *An optical drive is a CD-ROM, CD-R/RW, DVD-ROM, DVD-R/RW, or CD-RW/DVD Combo drive. Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 54
front of bay 2. Å WARNING: There may be sharp edges on the inside of the bay opening after the shield has been removed. 6-12 404569-001 Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 55
applications that were preinstalled on the computer. Follow the instructions in the guide included with the restore CD. When the restore process has been completed, reinstall any personal files that were backed up before replacing the hard drive. Service Reference Guide, dx2100 MT 404569-001 6-13 - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 56
Removal and Replacement Procedures- Microtower (MT) Chassis 6.8.4 Removing a 3.5" Diskette Drive 1. Prepare the computer guide screw from the drive 4 for transfer to the replacement drive. To replace the drive cage, reverse the removal procedure. 6-14 404569-001 Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 57
Removal and Replacement Procedures- Microtower (MT) Chassis 6.9 Front I/O Panel Housing Assembly 1. Prepare the computer for disassembly (Section 6.1, "Preparation from the chassis. To install the housing assembly, reverse the removal procedures. Service Reference Guide, dx2100 MT 404569-001 6-15 - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 58
Removal and Replacement Procedures- Microtower (MT) Chassis 6.10 Speaker 1. Prepare the computer for disassembly (Section 6.1, "Preparation for Disassembly"). 2. Remove the access speaker 2. To install the speaker, reverse the removal procedure. 6-16 404569-001 Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 59
Removal and Replacement Procedures- Microtower (MT) Chassis 6.11 System Fan 1. Prepare the computer for disassembly (Section 6.1, "Preparation for Disassembly"). 2. Remove and remove the fan. To install the fan, reverse the removal procedures. Service Reference Guide, dx2100 MT 404569-001 6-17 - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 60
Removal and Replacement Procedures- Microtower (MT) Chassis 6.12 Heatsink 1. Prepare the computer for disassembly applied. Position the heatsink so that fan wiring is closest to the memory module. Check to ensure that the heatsink mounting lugs do not 404569-001 Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 61
Removal and Replacement Procedures- Microtower (MT) Chassis 6.13 Processor 1. Prepare the computer for disassembly (Section 6.1, "Preparation for Disassembly"). 2. Remove the processor and install the heatsink atop the processor. 5. Go to step 7. Service Reference Guide, dx2100 MT 404569-001 6-19 - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 62
Removal and Replacement Procedures- Microtower (MT) Chassis 6. If using a new heatsink, remove the of the BIOS is being used on the computer. The latest system ROM BIOS can be found on the Web at: http:\\h18000.www1.hp.com/support/files. 6-20 404569-001 Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 63
Removal and Replacement Procedures- Microtower (MT) Chassis 6.14 System Board 1. Prepare the computer for disassembly (Section BIOS is being used on the computer. The latest system ROM BIOS can be found on the Web at: http:\\h18000.www1.hp.com/support/files. Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 64
Microtower (MT HP/Compaq spare designated for this product. Ä CAUTION: Before replacing the battery, it is important to back up the computer CMOS settings. When the battery is removed or replaced, the CMOS settings will be cleared. Refer to the Troubleshooting Guide Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 65
Removal and Replacement Procedures- Microtower (MT) Chassis 6.15.1 Type 1 Battery Holder 1. Lift the battery out Reset the date and time, your passwords, and any special system setups, using Computer Setup. Refer to the Computer Setup (F10) Utility Guide. Service Reference Guide, dx2100 MT 404569- - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 66
Removal and Replacement Procedures- Microtower (MT) Chassis 6.15.2 Type 2 Battery Holder 1. To release the the date and time, your passwords, and any special system setups, using Computer Setup. Refer to the Computer Setup (F10) Utility Guide. 6-24 404569-001 Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 67
Removal and Replacement Procedures- Microtower (MT) Chassis 6.15.3 Type 3 Battery Holder 1. Pull back on the Reset the date and time, your passwords, and any special system setups, using Computer Setup. Refer to the Computer Setup (F10) Utility Guide. Service Reference Guide, dx2100 MT 404569-001 - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 68
Removal and Replacement Procedures- Microtower (MT) Chassis 6.16 Power Supply Å WARNING: Voltage is always present on the system board when the computer is lift it out of the computer. To install the power supply, reverse the removal procedure. 6-26 404569-001 Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 69
Some of these connectors may not be used on the product being serviced. Enhanced Keyboard Connector and Icon Pin Signal 1 Data 2 Unused 3 Transmit Data 3 (+) Receive Data 4 Unused 5 Unused 6 (-) Receive Data 7 Unused 8 Unused Service Reference Guide, dx2100 MT 404569-001 A-1 - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 70
Indicator (5V if powered) USB Connector and Icon Pin Signal 1 +5 VDC 2 - Data 3 + Data 4 Ground Microphone Connector and Icon (1/8" miniphone) 1 23 Pin 1 (Tip) 2 (Ring) 3 (Shield) Signal Audio Power Ground A-2 404569-001 Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 71
1 23 Pin 1 (Tip) 2 (Ring) 3 (Shield) Signal Audio_In_Left Audio_In_Right Ground Line-Out Audio Connector and Icon (1/8" miniphone) 1 23 Pin 1 (Tip) 2 (Ring) 3 (Shield) DDC Serial Data 13 Horizontal Sync 14 Vertical Sync 15 DDC Serial Clock Service Reference Guide, dx2100 MT 404569-001 A-3 - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 72
computers; -5V for all others 1 Pin Signal 13 +3.3 V 14 -12 V 15 GND 16 PSON 17 GND 18 GND/(R/S) 4-Pin Power (for CPU) Connector and Icon Pin Signal 1 GND 2 GND 3 +12 V 4 +12 V Pin Signal 19 GND 20 NI 21 +5 V 22 +5 V 23 +5V 24 GND A-4 404569-001 Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 73
. For more information on power cord set requirements, contact your authorized HP dealer, reseller, or service provider. General Requirements The requirements listed below are applicable to all countries with appliance inlet on the Switch Box. Service Reference Guide, dx2100 MT 404569-001 B-1 - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 74
Requirements Country-Specific Requirements Additional requirements specific to a Type VCT or VCTF, 3-conductor, 1.0 mm2 conductor size. Wall plug must be a two-pole grounding type with a Japanese Industrial Standard C8303 (7A, 125V) configuration. B-2 404569-001 Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 75
problem. BIOS cannot access memory over 1MB. Parity Error Boot Failure... Fatal memory parity error. System halts after displaying this message. BIOS could not boot from the device. This message is usually followed by information about the specific Service Reference Guide, dx2100 MT 404569-001 C-1 - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 76
trying to initialize the DMA controller. Checking NVRAM...Update Failed BIOS could not write to the NVRAM block. Recommended Action Reseat the (Unlock), then flash the system BIOS. Reset the jumper to pins 1-2 (Lock). Replace the system board. C-2 404569-001 Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 77
. Select Load Default Settings > Save and Exit. Restart the computer, use the F10 Key to access Computer Setup. Select Load Default Settings > Save and Exit. Service Reference Guide, dx2100 MT 404569-001 C-3 - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 78
are installed correctly. Verify proper memory module type. Remove and replace memory modules one at a time to isolate faulty module. Replace the faulty memory module. If error persists after replacing memory module, replace the system board. C-4 404569-001 Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 79
second long beep will be heard before the system will shut down. Probable Cause BIOS unable to find a suitable boot device. CPU fan weak or not active. Warning: Processor Fan Has Failed. For Thermal order in which they should be performed. Service Reference Guide, dx2100 MT 404569-001 C-5 - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 80
until problem is solved. Beeps None None None 5 6 7 Possible Cause Computer on. Computer in Suspend to RAM mode service provider. Reseat DIMMs. Power on the system. Replace DIMMs one at a time to isolate the faulty module. Replace third-party memory with HP memory Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 81
second, followed by a two second pause. LEDs continue until problem is solved. Inclining beeps when password is entered. Declining ROM with the latest BIOS image. See the "ROM Flash" section of the Desktop Management Guide on the Documentation and Service Reference Guide, dx2100 MT 404569-001 C-7 - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 82
POST Error Messages C-8 404569-001 Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 83
simple, preliminary tests and guidelines for troubleshooting the computer without using the diagnostics. drive. ■ Are all of the necessary device drivers installed? ■ Have all printer drivers been installed for each application? ■ Remove all ? Service Reference Guide, dx2100 MT 404569-001 D-1 - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 84
the date and time under Control Panel. 2. Replace the RTC battery. Computer appears to pause periodically. Network driver is loaded and no network connection is established. Establish a network connection, to create more space on the hard drive. D-2 404569-001 Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 85
Troubleshooting Without Diagnostics Solving Minor Problems (Continued) Problem Cause Computer powered off automatically and the Power LED glows for 4 seconds system board is off, then replace the power supply. 6. Replace the system board. Service Reference Guide, dx2100 MT 404569-001 D-3 - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 86
Troubleshooting Without Diagnostics Solving Power Supply Problems Solving Power Supply Problems Problem Cause Power supply shuts down intermittently. Voltage selector switch on heatsink and verify that the fan assembly is properly attached. D-4 404569-001 Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 87
Troubleshooting Without Diagnostics Solving Diskette Problems Solving Diskette Problems Problem . (This feature supported on select models In Microsoft Windows XP, right-click Start type the following command at the MS-DOS prompt: FORMAT A: /F:1440 Service Reference Guide, dx2100 MT 404569-001 - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 88
. Solution Use a utility to locate and block usage of bad sectors. If necessary, reformat the hard disk. In Windows XP, right-click Start, click Explore, and select a drive. Select File > Properties > Tools. Under Error-checking, click Check Now. D-6 404569-001 Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 89
Troubleshooting Without Diagnostics Solving Hard Drive Problems (Continued) Problem If it is listed, the probable cause is a driver problem. If it is not listed, the probable cause is a hardware problem. 3. If this is a newly installed drive, Service Reference Guide, dx2100 MT 404569-001 D-7 - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 90
Troubleshooting Without Diagnostics Solving Hard Drive Problems (Continued) Problem Cause Nonsystem disk/NTLDR missing message. (continued) System files missing or not to turn off the power. 3. Restart the computer using the power button. D-8 404569-001 Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 91
Problems Troubleshooting Without Diagnostics Solving Display Problems Problem key or click the mouse button and, if set, type your password. System ROM is bad; system is the screen. 2. Using the keyboard arrow keys, select Enable VGA Mode and press Enter. 3. In Windows Control Panel, double- - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 92
Troubleshooting Without Diagnostics Solving Display Problems (Continued) Problem Cause Power LED to the graphics card and the monitor. Install the video drivers included in the upgrade kit. Change requested resolution. 1. Be sure the monitor cable 404569-001 Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 93
and select the appropriate symbol. Click Start > All Programs > Accessories > System Tools > Character Map. You can copy the symbol from the Character Map into a document. Service Reference Guide, dx2100 MT 404569-001 D-11 - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 94
Troubleshooting Without Diagnostics Solving Audio Problems Solving Audio Problems Problem Cause Solution Sound does not come out of the speaker or headphones. Software volume , the computer will shut down and you will lose your data. D-12 404569-001 Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 95
Troubleshooting Without Diagnostics Solving Audio Problems (Continued) Problem use the multimedia device properties to manually switch the audio signal from analog to digital. 2. free space on the hard disk. 2. Try recording the audio file in a compressed format. Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 96
Reconnect all cables. Install the correct printer driver for the application. Reconnect all cables. Reset the printer by turning it off for one minute, then turn it back on. 1. Check the paper tray and refill it if it is empty. 2. Select online. D-14 404569-001 Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 97
Troubleshooting Without Diagnostics Solving Keyboard and Mouse Problems Solving Keyboard Problems Problem Cause Solution Keyboard commands and typing are not recognized by the computer. Keyboard from the bottom of the mouse and clean it. Service Reference Guide, dx2100 MT 404569-001 D-15 - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 98
with the system to determine if you are using the correct memory modules and to verify the proper installation. 2. Observe the beeps and LED lights on the front of the computer. See Appendix C, "POST Error Messages" to determine possible causes. D-16 404569-001 Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 99
rate and at the same time as the LED flashes. Memory is installed incorrectly or is bad. 1. Reseat DIMMs. 2. Replace DIMMs one at a time to isolate the faulty module. 3. Replace third-party memory with HP memory. 4. Replace the system board. Service Reference Guide, dx2100 MT 404569-001 D-17 - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 100
or replace the system board if the NIC is embedded. 1. Make sure the network drivers are loaded and that the driver parameters match the configuration of the network controller. 2. Make sure the correct network client and protocol is installed. D-18 404569-001 Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 101
, industry-standard NIC, or change the boot sequence to boot from another source. Verify Network Connectivity, that a DHCP Server is present, and that the Remote System Installation Server contains the NIC drivers for your NIC. Flash the ROM. Service Reference Guide, dx2100 MT 404569-001 D-19 - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 102
need. Check the memory requirements for the application or add more memory to the computer. 1. Reseat DIMMs. 2. Replace DIMMs one at a time to isolate the faulty module. 3. Replace third-party memory with HP memory. 4. Replace the system board. D-20 404569-001 Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 103
is hot. Troubleshooting Without Diagnostics Solution 1. Make sure the airflow to the computer is not blocked. 2. Make sure the fans are connected and working properly (some fans only operate when needed). 3. Make sure the processor heatsink is installed properly. Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 104
RW drive cannot read a disc or takes too long to start. CD has been inserted upside down. The DVD-ROM drive takes longer to start because it has to determine the type of media played, such as audio the computer and let Windows detect the device. D-22 404569-001 Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 105
Troubleshooting Without Diagnostics Solving CD-ROM and DVD Problems (Continued) Problem Cause Solution Recording audio CDs is difficult or impossible. Wrong or poor quality media type. 1. Try using light on the front of the cable/DSL modem. Service Reference Guide, dx2100 MT 404569-001 D-23 - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 106
Troubleshooting Without Diagnostics Solving Internet Access Problems (Continued) Problem Cause Solution Unable to connect to the Internet. (continued) Cable/DSL service is not available or has been ISP and launch the desired program. D-24 404569-001 Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 107
, then click Properties. 7. Under Device status, verify that the modem is working properly. 8. Under Device usage, verify the modem is enabled. 9. If there are further problems, click the Troubleshoot button and follow the on-screen instructions. Service Reference Guide, dx2100 MT 404569-001 D-25 - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 108
Troubleshooting in Suspend to RAM mode (select models memory 1. Reseat DIMMs. Power on the system. error. 2. Replace DIMMs one at a time to isolate the faulty module. 3. Replace third-party memory with HP memory. 4. Replace the system board. D-26 404569-001 Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 109
Troubleshooting Without Diagnostics Diagnostic Front Panel LEDs and Audible Codes (Continued) the ROM using a ROMPaq diskette. See the "ROM Flash" section of the Desktop Management Guide on the Documentation CD. 2. Replace the system board. Service Reference Guide, dx2100 MT 404569-001 D-27 - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 110
Troubleshooting Without Diagnostics Diagnostic Front Panel LEDs and Audible Codes (Continued) Activity Beeps Possible Cause Recommended Action System system board is not turned on, then replace the power supply. 6. Replace the system board. D-28 404569-001 Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 111
512Mbit, and 1 Gbit non-ECC memory technologies ■ single-sided and double-sided DIMMS ■ DIMMs constructed with x8 and x16 DDR devices; DIMMs constructed with x4 SDRAM are not supported ✎ The system will not start if you install unsupported DIMMs. Service Reference Guide, dx2100 MT 404569-001 E-1 - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 112
labeled XMM1, XMM2, XMM3, and XMM4. Sockets XMM1 and XMM2 operate in memory channel A. Sockets XMM3 and XMM4 operate in memory channel B. ✎ The system board shown below may be slightly different from the by the slowest DIMM in the system. E-2 404569-001 Service Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 113
pin assignments A-1 to A-4 country-specific power cord set requirements B-2 customizing software 3-1 D date and time display D-2 deleting password 3-5 delimiter characters, table 3-6 deployment tools, software 3-1 device drivers installing/upgrading 1-1 obtaining 1-2 disassembly preparation 6-1 disk - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 114
power cord set requirements country specific B-2 general B-1 Power Management 3-2 power supply fan 5-6 removal and replacement 6-26 surge-tolerant 3-6 power-on password 2-1 changing 3-4 deleting 3-5 entering 3-4 Power-On Self-Test (POST) 2-1 Index-2 404569-001 Sservice Reference Guide, dx2100 MT - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 115
problems audio D-12 CD-ROM and DVD D-22 diskette D-5 display D-9 Drive Key D-23 hard drive D-6 installing hardware D-16 Internet access D-23 keyboard D-15 memory D-20 network sites HP 1-2 HP support 1-1, 3-3 PC Deployment 3-1 wrench, tamper-resistant 5-6 Sservice Reference Guide, dx2100 MT 404569- - HP dx2100 | HP Compaq dx2100 MT Business PC Service Reference Guide (1st Edition - Page 116
Index Index-4 404569-001 Sservice Reference Guide, dx2100 MT
service reference guide
HP Compaq dx2100 MT
Business PC
1st Edition
This document provides information on the removal and replacement of all
parts as well as information on troubleshooting, Desktop Management, setup
utilities, ATA drives, safety, routine care, connector pin assignments, POST
error messages, and diagnostic indicator lights.
Document Part Number 404569-001