service reference guide HP Compaq Business Desktop dx2000 uT Series Personal Computers 2st 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.
Service Reference Guide HP Compaq Business Desktop dx2000 uT Series Personal Computers 2nd Edition Document Part Number: 359782-002 May 2004
© Copyright 2004 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. Microsoft, MS-DOS, Windows, and Windows NT are trademarks of Microsoft Corporation in the U.S. and other countries. Intel is a trademark of Intel Corporation in the U.S. and other countries. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services.
Contents 1 Installing the Operating System 1.1 Microsoft Windows XP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1.1 Installing or Upgrading Device Drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2 Converting to NTFS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2.1 Windows XP Home and XP Professional . . . . . . . . . . . . . .
Contents 5 Identifying the Chassis, Routine Care, and Disassembly Preparation 5.1 Chassis Designations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.1.1 Microtower (µT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.2 Electrostatic Discharge Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.2.
Contents A Connector Pin Assignments B Power Cord Set Requirements C POST Error Messages D Troubleshooting Without Diagnostics E Memory Index Service Reference Guide, dx2000 uT 359782-002 v
Contents vi 359782-002 Service Reference Guide, dx2000 uT
1 Installing the Operating System Depending on the model, Microsoft Windows XP Home or Windows XP Professional is preinstalled on the computer and will be configured automatically the first time the computer is turned on. Ä CAUTION: Do not add optional hardware devices to your computer until the operating system is successfully installed. Doing so may cause errors and may prevent the operating system from installing properly.
Installing the Operating System 1.2 Converting to NTFS 1.2.1 Windows XP Home and XP Professional The Windows XP Home and XP Professional operating systems handle only NTFS-formatted drives. When installed, XP will, if necessary, automatically convert a FAT32 drive to NTFS. 1.3 HP Software The Microsoft Windows XP Home or Windows XP Professional operating system is preinstalled on the computer and will be configured automatically the first time the computer is turned on.
2 Setup Utilities and Diagnostics Features Setup Utilities (F10) and diagnostic features provide information needed about the computer system when contacting Customer Support. These tools can also be used to: ■ Change factory default settings and to set or change the system configuration, which may be necessary when you add or remove hardware. ■ Determine if all of the devices installed on the computer are recognized by the system and functioning properly.
Setup Utilities and Diagnostics Features 2.2 Computer Setup Utilities Use Computer Setup Utilities (F10) to: ■ Modify or restore factory default settings. ■ Set the system date and time. ■ Set, view, change, or verify the system configuration including settings for processor, graphics, memory, audio, storage, communications, and input devices. ■ Modify the boot order of bootable devices such as hard drives, diskette drives, optical drives, or LS-120 drives.
Setup Utilities and Diagnostics Features 5. Use the arrow (left and right) keys to select the appropriate heading. Use the arrow (up and down) keys to select the option you want, then press Enter. To return to the Computer Setup Utilities menu, press Esc. 6. To apply and save changes, select File > Save Changes and Exit. Ä ❏ If you have made changes that you do not want applied, select Ignore Changes and Exit. ❏ To reset to factory settings, select Set Defaults and Exit.
Setup Utilities and Diagnostics Features 2.2.2 Computer Setup Menu . Heading Option Description System Information None Lists product name, processor type and speed, cache size (L1/ L2), installed memory size, Chipset type, BIOS version, BIOS release date, and CPU ID. Standard CMOS Setup System time (hh/ mm/ss) Sets the system time (24 hour format). System date (mm/ dd/yy) Sets the system date. Floppy drive A Calculates the size and capacity of the floppy drive.
Setup Utilities and Diagnostics Features Heading ✎ Option Description Support for Computer Setup options may vary depending on your specific hardware configuration. Advanced CMOS Setup (Continued) Internal Graphic Mode Select Selects the size of memory for internal graphics adapter. • 1MB: Share 1MB • 4MB: Share 4MB • 8MB: Share 8MB (default) • 16MB: Share 16MB • 32MB: Share 32MB Power Management Setup ACPI Standby State Sets the ACPI standby state when system goes into ACPI standby mode.
Setup Utilities and Diagnostics Features Heading Peripheral Setup Option USB 1.1 Device Legacy Support (Continued) Description Sets the USB 1.1 Device Legacy Support under DOS mode. • Disable: USB 1.
Setup Utilities and Diagnostics Features Heading Hardware Monitor (Continued) Password Option Option Description System Temperature Detects current system temperature. CPU FAN Speed Detects CPU fan speed. Chassis FAN Speed Detects current chassis fan speed. CPU VID Detects current CPU voltage. Vccp Detects current Vccp voltage. +1.5V Detects current ATX power +1.5V. +2.5V Detects current ATX power +2.5V. +3.3V Detects current ATX power +3.3V. +5.0V Detects current ATX power +5.0V.
Setup Utilities and Diagnostics Features 2.3 Protecting the Software To protect software from loss or damage, you should keep a backup copy of all system software, applications, and related files stored on the hard drive. See the operating system or backup utility documentation for instructions on making backup copies of data files. 2.4 Restoring the Software The Windows operating system and software can be restored to its original state by using the Restore CD.
3 Desktop Management HP Intelligent Manageability provides standards-based solutions for managing and controlling desktops, workstations, and notebook PCs in a networked environment. The capabilities and features of the seven key components of desktop management are: ■ Initial configuration and deployment ■ ROM flash ■ Security ✎ Support for specific features described in this guide may vary by model or software version. 3.
Desktop Management 3.2.1 FailSafe Boot Block ROM The FailSafe Boot Block ROM allows for system recovery in the unlikely event of a ROM flash failure, for example, if a power failure were to occur during a ROM upgrade. The Boot Block is a flash-protected section of the ROM that checks for a valid system ROM flash when power to the system is turned on. ■ If the system ROM is valid, the system starts normally.
Desktop Management 3.2.3 Power Management Power Management is a feature that saves energy by shutting down certain components of the computer when they are not in use, saving energy without having to shut down the computer. With Advanced Configuration and Power Interface (ACPI) enabled for Windows 2000 and Windows XP, timeouts (the period of inactivity allowed before shutting down these components) can be enabled, customized, or disabled using the operating system. 1.
Desktop Management 3.3 Security 3.3.1 Password Security The power-on password prevents unauthorized use of the computer by requiring entry of a password to access applications or data each time the computer is turned on or restarted. The setup password specifically prevents unauthorized access to Computer Setup, and can also be used as an override to the power-on password. That is, when prompted for the power-on password, entering the setup password instead will allow access to the computer.
Desktop Management Entering a Power-On Password To enter a power-on password, complete the following steps: 1. Turn on or restart the computer. If you are in Windows, click Start > Shut Down > Restart. 2. When the key icon appears on the monitor, type your current password, then press Enter. ✎ Type carefully; for security reasons, the characters you type do not appear on the screen. If you enter the password incorrectly, a broken key icon appears. Try again.
Desktop Management 3. When the key icon appears, type your current password, a slash (/) or alternate delimiter character, your new password, another slash (/) or alternate delimiter character, and your new password again as shown: current password/new password/new password ✎ Type carefully; for security reasons, the characters you type do not appear on the screen. 4. Press the Enter key. The new password takes effect the next time you turn on the computer.
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 your password depend on the keyboard that came with your computer. National Keyboard Delimiter Characters Arabic / Greek - Russian / Belgian = Hebrew .
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4 Ultra ATA Drive Guidelines and Features 4.1 Ultra ATA Jumpers Ultra ATA drives are configured by means of jumper settings. Factory-installed drives ship with the jumpers preset to the cable-select mode; therefore, no jumper setting changes are required on factory pre installed, replacement, or option drives. With cable-select, the drive is configured as either Master (Drive/Device 0) or Slave (Drive/Device 1) by its physical attachment to the cable.
Ultra ATA Drive Guidelines and Features Single-Drive Cable System Board Device 0 (master) Blue Face Black Face Two-Drive Cable System Board Device 1 (slave) Blue Face Gray Face Device 0 (master) Black Face On a two-drive cable, the Drive/Device 0 connector is always the farthest one from the system board connector and the Drive/Device 1 connector is always the closest to the system board connector. cables may be labeled “Drive 0” instead of “Device 0” and “Drive 1” instead of ✎ Some “Device 1”.
Ultra ATA Drive Guidelines and Features 4.3.1 Device Classes In order to determine the best drive attach sequence, ATA/ATAPI drives are segregated into four different classes based upon the bandwidth demands they place on an ATA controller. The most demanding devices are in Class 1 and the least demanding are in Class 4.
Ultra ATA Drive Guidelines and Features The attach sequence rule may also be stated in table format: General Attach Sequence Rule* Sequence Description 1 The lowest class drive - bootable hard drive recommended. 2 If only two drives, the last drive goes here; otherwise the lowest class of the remaining drives. 3 If only three drives, attach the final drive here. If a fourth drive exists, attach the lowest class drive here.
Ultra ATA Drive Guidelines and Features Example 1: Three Device Installation Sample A system has three devices: Ultra ATA-100 hard drive, CD-ROM drive, and a DVD drive. Using the Device Class Table in Section 4.3.
Ultra ATA Drive Guidelines and Features Attach Sequence Worksheet - Four Device Installation (Sample) Device Name Device Class Position Number Controller Name Device Number Ultra ATA-100 hard drive 1 1 Primary 0 DVD-CDR/W drive 2 2 Secondary 0 ZIP-250 drive 4 3 Secondary 1 Ultra ATA-100 hard drive* 1 4 Primary 1 *If there are three or more devices, two or more of which are hard drives, two hard drives should be attached to the primary controller first before following the General A
Ultra ATA Drive Guidelines and Features 4.5 Drive Capacities The combination of the file system and the operating system used in the computer determines the maximum usable size of a drive partition. A drive partition is the largest segment of a drive that may be properly accessed by the operating system. A single hard drive may therefore be subdivided into a number of unique drive partitions in order to make use of all of its space.
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5 Identifying the Chassis, Routine Care, and Disassembly Preparation This chapter provides general service information for the computer. Adherence to the procedures and precautions described in this chapter is essential for proper service. Ä 5.1 CAUTION: When the computer is plugged into an AC power source voltage is always applied to the system board. You must disconnect the power cord from the power source before opening the computer to prevent system board or component damage. Chassis Designations 5.
Identifying the Chassis, Routine Care, and Disassembly Preparation 5.2 Electrostatic Discharge Information A sudden discharge of static electricity from your finger or other conductor can destroy staticsensitive devices or microcircuitry. Often the spark is neither felt nor heard, but damage occurs. An electronic device exposed to electrostatic discharge (ESD) may not appear to be affected at all and can work perfectly throughout a normal cycle.
Identifying the Chassis, Routine Care, and Disassembly Preparation 5.2.3 Personal Grounding Methods and Equipment Use the following equipment to prevent static electricity damage to equipment: ■ Wrist straps are flexible straps with a maximum of one-megohm ± 10% resistance in the ground cords. To provide proper ground, a strap must be worn snug against bare skin. The ground cord must be connected and fit snugly into the banana plug connector on the grounding mat or workstation.
Identifying the Chassis, Routine Care, and Disassembly Preparation 5.3 ■ Static awareness labels ■ Wrist straps and footwear straps providing one-megohm +/- 10% resistance ■ Material handling packages ■ Conductive plastic bags ■ Conductive plastic tubes ■ Conductive tote boxes ■ Opaque shielding bags ■ Transparent metallized shielding bags ■ Transparent shielding tubes Routine Care 5.3.1 General Cleaning Safety Precautions 1.
Identifying the Chassis, Routine Care, and Disassembly Preparation 5.3.3 Cleaning the Keyboard Follow all safety precautions in Section 5.3.1, “General Cleaning Safety Precautions,” before cleaning the keyboard. To clean the tops of the keys or the keyboard body, follow the procedures described in Section 5.3.2, “Cleaning the Computer Case.” When cleaning debris from under the keys, review all rules in Section 5.3.
Identifying the Chassis, Routine Care, and Disassembly Preparation 5.4 Service Considerations Listed below are some of the considerations that you should keep in mind during the disassembly and assembly of the computer. 5.4.1 Power Supply Fan The power supply fan is a variable-speed fan based on the temperature in the power supply. Ä CAUTION: The cooling fan is off only when the computer is turned off or the power cable has been disconnected.
Identifying the Chassis, Routine Care, and Disassembly Preparation 5.4.4 Cables and Connectors Most cables used throughout the unit are flat, flexible cables. These cables must be handled with care to avoid damage. Apply only the tension required to seat or unseat the cables during insertion or removal from the connector. Handle cables by the connector whenever possible.
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6 Removal and Replacement Procedures— Microtower (µT) Chassis Adherence to the procedures and precautions described in this chapter is essential for proper service. After completing all necessary removal and replacement procedures, run the Diagnostics utility to verify that all components operate properly. ✎ Not all features listed in this guide are available on all computers. 6.
Removal and Replacement Procedures— Microtower (µT) Chassis 6.2 Access Panel 1. Prepare the computer for disassembly (Section 6.1, “Preparation for Disassembly”). Ä CAUTION: Before removing the computer access panel, ensure that the computer is turned off and that the power cord is disconnected from the electrical outlet. 2. Remove the two screws that secure the access panel to the computer chassis. Some access panels use captive thumbscrews.
Removal and Replacement Procedures— Microtower (µT) Chassis 6.3 Front Bezel 1. Prepare the computer for disassembly (Section 6.1, “Preparation for Disassembly”). 2. Remove the access panels (Section 6.2, “Access Panel”). 3. Grasp the bottom of the front panel below the lowest air vent and pull the panel out and up to release it from the chassis. To install the front bezel, insert the top two latches into their respective holes in the chassis and push the bezel in until it is fully seated.
Removal and Replacement Procedures— Microtower (µT) Chassis 6.4 Front Drive Bezels 1. Prepare the computer for disassembly (Section 6.1, “Preparation for Disassembly”). 2. Remove the access panel (Section 6.3, “Front Bezel”). 3. Remove the front bezel (Section 6.3, “Front Bezel”). 6.4.1 5.25" Drive Bezel Blank Press one of the retaining tabs on the inside of the large bezel towards the outer edge of the bezel to release the bezel blank.
Removal and Replacement Procedures— Microtower (µT) Chassis 6.4.2 Diskette Drive Bezel Pull the right retaining tab towards the center of the main bezel. At the same time, pull the bezel inwards to remove it from the main bezel. To install a diskette drive bezel, reverse the removal procedure.
Removal and Replacement Procedures— Microtower (µT) Chassis 6.5 Memory For more information on the memory in this series of computers, refer to Appendix E, “Memory.” 6.5.1 Installing Memory Modules Ä CAUTION: The memory module sockets have gold metal contacts. When upgrading the memory, it is important to use memory modules with gold metal contacts to prevent corrosion and/or oxidation resulting from having incompatible metals in contact with each other.
Removal and Replacement Procedures— Microtower (µT) Chassis module can be installed in only one way. Match the notch on the module with the tab ✎ Aonmemory the memory socket. 5. Push the module down into the socket, ensuring that the module is fully inserted and properly seated. Make sure the latches are in the closed position 3. 6. Repeat steps 4 and 5 for any additional modules that you want to install. To reassemble the computer, reverse the removal procedure.
Removal and Replacement Procedures— Microtower (µT) Chassis 6.6 Expansion Card 1. Prepare the computer for disassembly (Section 6.1, “Preparation for Disassembly”). 2. Remove the right access panel (Section 6.2, “Access Panel”). 3. Lay the computer down on its side to make it easier to work on. If installing an expansion card in an empty slot, skip to step 9. 4. To remove an expansion card, disconnect any cables attached to the expansion card. 5. Remove the screw at the top of the expansion slot. 6.
Removal and Replacement Procedures— Microtower (µT) Chassis 6.7 Drives The computer supports up to five drives that may be installed in various configurations. This Section describes the procedure for replacing or upgrading the storage drives. A Torx T-15 screwdriver is needed to remove and install the guide screws on a drive. Ä CAUTION: Make sure personal files on the hard drive are backed up to an external storage device before removing the hard drive. Failure to do so will result in data loss.
Removal and Replacement Procedures— Microtower (µT) Chassis 6.7.2 Removing a 5.25" Drive 1. Prepare the computer for disassembly (Section 6.1, “Preparation for Disassembly”). 2. Remove both the right and left access panels (Section 6.2, “Access Panel”). 3. Remove the front bezel (Section 6.3, “Front Bezel”). 4. Disconnect the power, data, and audio cables, as necessary, from the back of the drive. cases it may be easier to slide the drive part way out of the drive bay before removing ✎ Inthesome cables. 5.
Removal and Replacement Procedures— Microtower (µT) Chassis 6.7.3 Removing a Diskette Drive 1. Prepare the computer for disassembly (Section 6.1, “Preparation for Disassembly”). 2. Remove both the right and left access panels (Section 6.2, “Access Panel”). 3. Remove the front bezel (Section 6.3, “Front Bezel”). 4. Disconnect the power, and data cables from the back of the drive. 5. Remove the four screws, two from each side, that secure the drive in the drive cage 1. 6.
Removal and Replacement Procedures— Microtower (µT) Chassis 6.7.4 Removing the Lower Drive Cage 1. Prepare the computer for disassembly (Section 6.1, “Preparation for Disassembly”). 2. Remove both the right and left access panels (Section 6.2, “Access Panel”). 3. Remove the front bezel (Section 6.3, “Front Bezel”). 4. Remove the diskette drive (Section 6.7.3, “Removing a Diskette Drive”). 5. Disconnect the power, and data cables from the back of all installed 3.5" drives. 6.
Removal and Replacement Procedures— Microtower (µT) Chassis 6.7.5 Removing a 3.5" Hard Drive 1. Prepare the computer for disassembly (Section 6.1, “Preparation for Disassembly”). 2. Remove both the right and left access panels (Section 6.2, “Access Panel”). 3. Remove the front bezel (Section 6.3, “Front Bezel”). 4. Remove the diskette drive (Section 6.7.3, “Removing a Diskette Drive”). 5. Disconnect the power, and data cables from the back of all installed 3.5" drives. 6.
Removal and Replacement Procedures— Microtower (µT) Chassis 6.8 Front USB Device 1. Prepare the computer for disassembly (Section 6.1, “Preparation for Disassembly”). 2. Remove the right access panel (Section 6.2, “Access Panel”). 3. Remove the front bezel (Section 6.3, “Front Bezel”). 4. Disconnect the front USB cable from the system board. 5. Remove the single screw that secures the front USB device to the chassis 1, then slide the USB housing up to release it from the chassis 2. 6.
Removal and Replacement Procedures— Microtower (µT) Chassis 6.9 Power Switch Assembly 1. Prepare the computer for disassembly (Section 6.1, “Preparation for Disassembly”). 2. Remove the right access panel (Section 6.2, “Access Panel”). 3. Remove the front bezel (Section 6.3, “Front Bezel”). 4. Remove the diskette drive (Section 6.7.3, “Removing a Diskette Drive”). 5. Disconnect the power, and data cables from the back of all installed 3.5" drives. 6. Remove the lower drive cage (Section 6.7.
Removal and Replacement Procedures— Microtower (µT) Chassis 6.10 Speaker 1. Prepare the computer for disassembly (Section 6.1, “Preparation for Disassembly”). 2. Remove the right access panel (Section 6.2, “Access Panel”). 3. Remove the front bezel (Section 6.3, “Front Bezel”). 4. Disconnect the speaker cable from the system board 1. 5. From the outside of the chassis pull out the stems of the four push pins to release the speakers then, remove the speaker 2.
Removal and Replacement Procedures— Microtower (µT) Chassis 6.11 System Fan 1. Prepare the computer for disassembly (Section 6.1, “Preparation for Disassembly”). 2. Remove the right access panel (Section 6.2, “Access Panel”). 3. Disconnect the cable that connects the system fan to the system board. 4. Remove the four screws that secure the fan to the chassis and remove the fan. To install the fan, reverse the removal procedures.
Removal and Replacement Procedures— Microtower (µT) Chassis 6.12 Processor and Heatsink 1. Prepare the computer for disassembly (Section 6.1, “Preparation for Disassembly”). 2. Remove the right access panels (Section 6.2, “Access Panel”). 3. Lay the computer down on its side to make it easier to work on. 4. Use a long, slender screwdriver to unscrew the four processor retaining screws 1. ✎ The spring-loaded retaining screws are captive to the heatsink. 5.
Removal and Replacement Procedures— Microtower (µT) Chassis 6.13 System Board 1. Prepare the computer for disassembly (Section 6.1, “Preparation for Disassembly”). 2. Remove both the right and left access panels (Section 6.2, “Access Panel”). 3. Remove the front bezel (Section 6.3, “Front Bezel”). 4. Remove the diskette drive (Section 6.7.3, “Removing a Diskette Drive”). 5. Disconnect the power, and data cables from the back of all installed 3.5" drives. 6. Remove the lower drive cage (Section 6.7.
Removal and Replacement Procedures— Microtower (µT) Chassis 6.14 Battery The battery that comes with your computer provides power to the real-time clock and has a lifetime of about three years. When replacing the battery, use a battery equivalent to the battery originally installed on the computer. The computer comes with a 3-volt lithium coin cell battery. lifetime of the lithium battery can be extended by plugging the computer into a live AC wall ✎ The socket.
Removal and Replacement Procedures— Microtower (µT) Chassis 4. To release the battery from its holder, push away the metal clamp that extends above one edge of the battery 1. When the battery pops up, lift it out 2. 5. To insert the new battery, slide one edge of the replacement battery in with the positive side pointing to the metal retaining clamp as shown, until the clamp snaps over the other edge of the battery. ✎ After the battery has been replaced, use the following steps to complete this procedure.
Removal and Replacement Procedures— Microtower (µT) Chassis 6.15 Power Supply Å WARNING: Voltage is always present on the system board when the computer is plugged into an active AC outlet. To avoid possible personal injury and damage to the equipment the power cord should be disconnected from the computer and/or the AC outlet before opening the computer. 1. Prepare the computer for disassembly (Section 6.1, “Preparation for Disassembly”). 2. Remove the right access panel (Section 6.2, “Access Panel”).
A Connector Pin Assignments This appendix contains the pin assignments for many computer and workstation connectors. Some of these connectors may not be used on the product being serviced.
Connector Pin Assignments Parallel Interface Connector and Icon Pin Signal Pin Signal Pin Signal 1 2 3 Strobe Data Bit 0 Data Bit 1 7 8 9 Data Bit 5 Data Bit 6 Data Bit 7 13 14 15 Select Auto Linefeed Error 4 5 6 Data Bit 2 Data Bit 3 Data Bit 4 10 11 12 Acknowledge Busy Paper End 16 17 18-25 Initialize Printer Select IN Signal Ground Serial Interface, Powered and Non-Powered Connector and Icon Pin Signal 1 2 3 Carrier Detect (12V if powered) Receive Data Transmit Data 4 5 6 Data T
Connector Pin Assignments Headphone Connector and Icon (1/8" miniphone) 1 2 3 Pin Signal 1 (Tip) Audio_Left 2 (Ring) Audio_Right 3 (Shield) Ground Pin Signal 1 (Tip) Audio_In_Left 2 (Ring) Audio_In_Right 3 (Shield) Ground Pin Signal 1 (Tip) Audio_Out_Left 2 (Ring) Audio_Out_Right 3 (Shield) Ground Line-In Audio Connector and Icon (1/8" miniphone) 1 2 3 Line-Out Audio Connector and Icon (1/8" miniphone) 1 2 3 Monitor Connector and Icon Pin Signal Pin Signal Pin Signal 1 2 3
Connector Pin Assignments ATA/ATAPI (IDE) Standard Drive Cable Connector Pin Signal Pin Signal Pin Signal 1 2 3 4 5 Reset Ground DD7 DD8 DD6 15 16 17 18 19 DD1 DD14 DD0 DD15 Ground 29 30 31 32 33 DMAK Ground INTRQ IOCS16 DA1 6 7 8 9 10 DD9 DD5 DD10 DD4 DD11 20 21 22 23 24 (Key) DMARQ Ground DIOW Ground 34 35 36 37 38 PDIAG (cable detect) DA0 DA2 CS1FX CS3FX 11 12 13 14 DD3 DD12 DD2 DD13 25 26 27 28 DIOR Ground IORDY CSEL 39 40 DASP Ground 20-Pin Power Connector 20 11 10 1 Pin
B Power Cord Set Requirements The voltage select switch feature on the computer permits it to operate from any line voltage between 100-120 or 220-240 volts AC. The power cord set received with the computer meets the requirements for use in the country where you purchased the equipment. Power cord sets for use in other countries must meet the requirements of the country where you use the computer.
Power Cord Set Requirements Country-Specific Requirements Additional requirements specific to a country are shown in parentheses and explained below. Country Accrediting Agency Country Accrediting Agency Australia (1) Austria (1) Belgium (1) Canada (2) EANSW OVE CEBC CSA Italy (1) Japan (3) Norway (1) Sweden (1) IMQ METI NEMKO SEMKO Denmark (1) Finland (1) France (1) Germany (1) DEMKO SETI UTE VDE Switzerland (1) United Kingdom (1) United States (2) SEV BSI UL 1.
C POST Error Messages An error message results if the Power-On Self-Test (POST) encounters a problem. This test runs when the system is turned on, checking assemblies within the computer and reporting any errors found. Not all computers use all of the codes listed. Recommended Actions are to be taken in incremental steps. Perform one step at a time and continue only if the action does not cure the problem.
POST Error Messages POST Error Messages Screen Message Primary Master/Slave Hard Disk Error Probable Cause Primary Master/Slave hard drive could not be initialized by the BIOS. Recommended Action Reseat the device data and power cables. Replace the device data cable. Replace the device. Replace the system board. Secondary Master/ Slave Hard Disk Error Secondary Master/Slave hard drive could not be initialized by the BIOS. Reseat the device data and power cables. Replace the device data cable.
POST Error Messages POST Error Messages Screen Message Microcode Error Probable Cause Recommended Action BIOS could not find or load the CPU microcode update to the CPU. Ensure the system board BIOS supports the processor. NVRAM Checksum Bad, NVRAM Cleared Error detected while validating NVRAM data. Restart the computer, use the F10 Key to access Computer Setup. Select Load Default Settings > Save and Exit.
POST Error Messages POST Error Messages Screen Message Probable Cause Recommended Action CMOS Checksum Bad CMOS contents failed the Checksum check. Restart the computer, use the F10 Key to access Computer Setup. Select Load Default Settings > Save and Exit. Keyboard Error Keyboard not present or system not responding when keyboard controller is initialized. Reconnect keyboard with computer turned off. Check connector for bent or missing pins. Ensure that none of the keys are depressed.
D Troubleshooting Without Diagnostics Preliminary Checklist This section describes some simple, preliminary tests and guidelines for troubleshooting the computer without using the diagnostics.
Troubleshooting Without Diagnostics Solving Minor Problems Solving Minor Problems Problem Cause Possible Solution Computer appears locked up and will not turn off when the power button is pressed. Software control of the power switch is not functional. Computer will not respond to USB keyboard or mouse. Computer is in standby mode. 1. Press and hold the power button for at least four seconds until the computer turns off. 2. Disconnect electrical plug from outlet.
Troubleshooting Without Diagnostics Solving Minor Problems (Continued) Problem Cause Possible Solution Computer powered off automatically and the Power LED flashes Red two times, once every second, followed by a two second pause. Processor thermal protection activated: A fan may be blocked or not turning. OR The heatsink is not properly attached to the processor. 1. Ensure computer air vents are not blocked and the cooling fan is running. 2.
Troubleshooting Without Diagnostics Solving Power Supply Problems Solving Power Supply Problems Problem Cause Solution Power supply shuts down intermittently. Voltage selector switch on rear of computer chassis not switched to correct line voltage. Select the proper AC voltage. Power supply fault. Replace the power supply. Computer powered off automatically and the Power LED flashes Red two times, once every second, followed by a two second pause.
Troubleshooting Without Diagnostics Solving Diskette Problems Solving Diskette Problems Problem Cause Solution Diskette drive light stays on. Diskette is damaged. In Microsoft Windows XP, right-click Start, click Explore, and select a drive. Select File > Properties > Tools. Under Error-checking, click Check Now. Diskette is incorrectly inserted. Remove diskette and reinsert. Drive button is not pushed in. Push in drive button. Files on diskette are damaged. Check the program diskettes.
Troubleshooting Without Diagnostics Solving Diskette Problems (Continued) Problem Cause Solution A problem has occurred with a disk transaction. The directory structure is bad, or there is a problem with a file. In Windows XP, right-click Start, click Explore, and select a drive. Select File > Properties > Tools. Under Error-checking, click Check Now. Diskette drive cannot read a diskette. Diskette is not formatted. Format the diskette. You are using the wrong diskette type for the drive type.
Troubleshooting Without Diagnostics Solving Hard Drive Problems (Continued) Problem Cause Solution Disk transaction problem. Either the directory structure is bad or there is a problem with a file. In Windows XP, right-click Start, click Explore, and select a drive. Select File > Properties > Tools. Under Error-checking, click Check Now. Drive not found (identified). Loose cable. Check cable connections. The system may not have automatically recognized a newly installed device. 1.
Troubleshooting Without Diagnostics Solving Hard Drive Problems (Continued) Problem Cause Solution System files missing or not properly installed. 1. Insert a bootable system diskette and restart. 2. Verify hard drive is partitioned and formatted. 3. Install system files for the appropriate operating system if necessary. Hard drive boot disabled in Computer Setup. Run Computer Setup and enable the hard drive entry in the Storage > Boot Order list. Using the wrong cable for the drive type.
Troubleshooting Without Diagnostics Solving Display Problems Solving Display Problems Problem Cause Solution Blank screen (no video). The cable connections are not correct. Check the cable connections from the monitor to the computer and to the electrical outlet. Screen blanking utility installed or energy saver features enabled. Press any key or click the mouse button and, if set, type your password. System ROM is bad; system is running in FailSafe Boot Block mode (indicated by eight beeps).
Troubleshooting Without Diagnostics Solving Display Problems (Continued) Problem Cause Solution Power LED flashes Red six times, once every second, followed by a two second pause, and the computer beeps six times. Pre-video graphics error. For systems with a graphics card: 1. Reseat the graphics card. 2. Replace the graphics card. 3. Replace the system board. For systems with integrated graphics, replace the system board. Monitor does not function properly when used with energy saver features.
Troubleshooting Without Diagnostics Solving Display Problems (Continued) Problem Cause Solution Clicking noise coming from inside a CRT monitor. Electronic relays have been activated inside the monitor. None. It is normal for some monitors to make a clicking noise when turned on and off, when going in and out of standby mode, and when changing resolutions. High pitched noise coming from inside a flat panel monitor. Brightness and/or contrast settings are too high.
Troubleshooting Without Diagnostics Solving Audio Problems Solving Audio Problems Problem Cause Solution Sound does not come out of the speaker or headphones. Software volume control is turned down. Double-click the Speaker icon on the taskbar and use the volume slider to adjust the volume. The external speakers are not turned on. Turn on the external speakers. External speakers plugged into the wrong audio jack. See the sound card documentation for proper speaker connection.
Troubleshooting Without Diagnostics Solving Audio Problems (Continued) Problem Cause Solution Noise or no sound comes out of the speakers or headphones. 1. If using digital speakers that have a stereo jack and want the system to auto-switch to digital, use a stereo-to-mono adapter to properly engage the autosense feature or use the multimedia device properties to manually switch the audio signal from analog to digital. 2.
Troubleshooting Without Diagnostics Solving Printer Problems Solving Printer Problems Problem Cause Solution Printer will not print. Printer is not turned on and online. Turn the printer on and make sure it is online. The correct printer driver for the application are not installed. 1. Install the correct printer driver for the application. 2. Try printing using the MSDOS command: DIR C:\ > [printer port] where [printer port] is the address of the printer being used.
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 connector is not properly connected. 1. Turn off the computer. 2. Reconnect the keyboard to the back of the computer and restart the computer. Program in use has stopped responding to commands. Shut down the computer using the mouse and then restart the computer. Keyboard needs repairs.
Troubleshooting Without Diagnostics Solving Hardware Installation Problems You may need to reconfigure the computer when you add or remove hardware, such as an additional diskette drive. If you install a plug and play device, Windows XP automatically recognize the device and configure the computer. If you install a non–plug and play device, you must reconfigure the computer after completing installation of the new hardware.
Troubleshooting Without Diagnostics Solving Hardware Installation Problems (Continued) Problem Cause Power LED flashes Red five times, once every second, followed by a two second pause. The computer beeps at the same rate and at the same time as the LED flashes. Memory is installed incorrectly or is bad. Service Reference Guide, dx2000 uT Solution 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.
Troubleshooting Without Diagnostics Solving Network Problems These guidelines do not discuss the process of debugging the network cabling. Solving Network Problems Problem Cause Solution Wake-on-LAN feature is not functioning. Wake-on-LAN is not enabled. Use the Network control application to enable Wake-onLAN. Network driver does not detect network controller. Network controller is disabled. Run Computer Setup and enable network controller. Incorrect network driver.
Troubleshooting Without Diagnostics Solving Network Problems (Continued) Problem Cause Solution Diagnostics passes, but the computer does not communicate with the network. (continued) The network controller is not configured for this computer. Select the Network icon in the Control Panel and configure the network controller. Network controller stopped working when an expansion board was added to the computer. Network controller interrupt is shared with an expansion board.
Troubleshooting Without Diagnostics Solving Memory Problems Ä CAUTION: For those systems that support ECC memory, HP does not support mixing ECC and nonECC memory. Otherwise, the system will not boot the operating system. Solving Memory Problems Problem Cause Solution System will not boot or does not function properly after installing additional memory modules. Memory module is not the correct type or speed or the new memory module is not seated properly.
Troubleshooting Without Diagnostics Solving Processor Problems . Solving Processor Problems Problem Cause Solution Poor performance is experienced. Processor is hot. 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.
Troubleshooting Without Diagnostics Solving CD-ROM and DVD Problems Solving CD-ROM and DVD Problems Problem Cause Solution System will not boot from CD-ROM or DVD drive. The CD-ROM or DVD boot is not enabled through the Computer Setup utility. Run the Computer Setup utility and enable booting to removable media and verify boot order settings. Non-bootable CD in drive. Try a bootable CD in the drive. CD-ROM or DVD devices are not detected or driver is not loaded.
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 a slower recording speed. 2. Verify that you are using the correct media for the drive. 3. Try a different brand of media. Quality varies widely between manufacturers. Solving Drive Key Problems Solving DiskOnKey Problems Problem Cause Solution Drive Key is not seen as a drive letter in Windows XP.
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 interrupted due to bad weather. Try connecting to the Internet at a later time or contact your ISP. (If the cable/DSL service is connected, the “cable” LED light on the front of the cable/DSL modem will be on.) The CAT5 10/100 cable is disconnected.
Troubleshooting Without Diagnostics Solving Internet Access Problems (Continued) Problem Cause Solution Internet takes too long to download Web sites. Modem is not set up properly. Verify that the correct modem speed and COM port are selected. For Windows XP 1. Select Start > Control Panel. 2. Double-click System. 3. Click the Hardware tab. 4. In the Device Manager area, click the Device Manager button. 5. Double-click Ports (COM & LPT). 6.
Troubleshooting Without Diagnostics D–26 359782-002 Service Reference Guide, dx2000 uT
E Memory Computers equipped with Intel-based processors come with double data rate synchronous dynamic random access memory (DDR-SDRAM) dual inline memory modules (DIMMs). The memory sockets on the system board can be populated with up to four industry-standard DIMMs. These memory module slots are populated with at least one preinstalled memory module. To achieve the maximum memory support, you can populate the system board with up to 4GB of memory configured in a high-performing dual channel mode.
Memory DIMM Sockets There are four DIMM sockets on the system board, with two sockets per channel. The sockets are 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 one in the computer.
Index 4-pin power pin assignments A–4 20-pin power pin assignments A–4 A ATA/ATAPI (IDE) drive cable pin assignments A– 4 B battery µT removal and replacement 6–20 real-time clock D–2 blank screen D–9 C cable select drive 4–1 cable, proper handling 5–7 cautions AC power 5–1 adding devices 1–1 batteries 5–7 cables 5–7 cooling fan 5–6 installation 1–1 keyboard cleaning 5–5 keyboard keys 5–5 changing operating systems, important information 3–3 changing password 3–5 chassis types, illustrated 5–1 cleaning c
Index entering power-on password 3–5 setup password 3–5 error messages, POST C–1 to C–4 ESD (electrostatic discharge) information 5–2 materials and equipment 5–3 preventing damage 5–2 Ethernet RJ-45 pin assignments A–1 exit without saving, Computer Setup 2–7 F FailSafe Boot Block ROM 3–2 fan, power supply 5–6 FAT 32 to NTFS conversion 1–2 4-pin power pin assignments A–4 front µT USB device removal and replacement 6– 14 G grounding methods 5–3 H hard drive µT removal and replacement 6–13 proper handling
Index configuring 3–2 dual-state 3–2 power cord set requirements country specific B–2 general B–1 Power Management 3–3 power management setup 2–5 power supply fan 5–6 µT removal and replacement 6–22 power supply, surge-tolerant 3–7 power switch assembly, µT removal and replacement 6–15 power-on password 2–1 changing 3–5 deleting 3–6 entering 3–5 Power-On Self-Test (POST) 2–1 preinstalled software image 3–1 problems audio D–12 CD-ROM and DVD D–22 diskette D–5 display D–9 Drive Key D–23 hard drive D–6 instal
Index U upgrading ROM 3–1 URLs (Web sites). See Web sites USB pin assignments A–2 W Wake-on-LAN feature D–18 warning, battery 5–7 Index–4 Web sites HP 1–2 HP support 1–1, 3–1, 3–3 PC Deployment 3–1 World Wide Web addresses.
