Service Reference Guide HP Compaq dx2450 Business PC
© Copyright 2008 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. Microsoft and Windows are trademarks of Microsoft 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. Nothing herein should be construed as constituting an additional warranty.
Table of contents 1 Installing and Customizing the Software Installing the Operating System ........................................................................................................... 1 Installing or Upgrading Device Drivers ................................................................................................. 1 HP Backup and Recovery Manager .....................................................................................................
Chassis Designation ........................................................................................................................... 18 Microtower (MT) ................................................................................................................. 18 Electrostatic Discharge Information .................................................................................................... 19 Generating Static ..........................................................................
Speaker .............................................................................................................................................. 62 Rear Chassis Fan ............................................................................................................................... 63 Power Supply ..................................................................................................................................... 64 System Board ...............................................
Appendix D System Board and Riser Board Reference Designators ............................................................................................................................................................ 92 Appendix E Specifications Index .................................................................................................................................................................
1 Installing and Customizing the Software NOTE: If the computer was shipped with Windows Vista loaded, you will be prompted to register the computer with HP Total Care before installing the operating system. You will see a brief movie followed by an online registration form. Fill out the form, click the Begin button, and follow the instructions on the screen. CAUTION: Do not add optional hardware or third-party devices to the computer until the operating system is successfully installed.
HP Backup and Recovery Manager The HP Backup and Recovery Manager is an easy-to-use, versatile application that allows you to back up and recover the primary hard drive on the PC. The application works within Windows to create backups of Windows, all applications, and all data files. Backups can be scheduled to occur automatically at designated intervals, or they can be initiated manually. Important files can be archived separately from regular backups.
2 Computer Setup (F10) Utility Computer Setup (F10) Utilities Use Computer Setup (F10) Utility to do the following: ● Change factory default settings. ● Set the system date and time. ● Set, view, change, or verify the system configuration, including settings for graphics, audio, storage, communications, and input devices. ● View settings for processor and memory. ● Modify the boot order of bootable devices such as hard drives, diskette drives, optical drives, or USB flash media devices.
● Boot ● Exit Use the arrow keys to select the appropriate heading, then press Enter. Use the arrow (up and down) keys to select the option you want, then press Enter. To return to the previous screen, press Esc. CAUTION: Do NOT turn the computer power OFF while the ROM is saving the Computer Setup (F10) changes because the CMOS could become corrupted. It is safe to turn off the computer only after exiting the F10 Setup screen.
● Memory Bank 4 ● BIOS Revision ● Core Version ● Model Number ● Product Number ● Asset Tag (press Enter to change) Computer Setup—Advanced NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration. WARNING! Setting items on this menu to incorrect values may cause your system to malfunction.
Table 2-2 Computer Setup—Advanced (continued) Onboard LAN Boot ROM Allows you to disable/enable the boot ROM of the onboard LAN chip. SATA Controller Allows you to set: Onboard Audio Internal Speaker ● Disabled ● SATA1 ● SATA1+2 Allows you to set the onboard audio to: ● Auto ● Disabled ● Enabled Allows you to set the internal speaker to: ● Disabled ● Enabled Supervisor Password Allows you to change supervisor password. User Password Allows you to change the user password.
Computer Setup—Boot NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration. Table 2-4 Computer Setup—Boot Option Description Boot-time Diagnostic Screen Disables/enables POST diagnostic messages display.
Recovering the Configuration Settings To reset all BIOS Setup options to their default values (including options for ctrl+F10), you must enter F10 Setup mode and press F5. This does not include updates to system date, system time, supervisor password, user password, and CPU frequency multiplier.
3 Computer Diagnostic Features HP Insight Diagnostics NOTE: HP Insight Diagnostics is included on CD with some computer models only. The HP Insight Diagnostics utility allows you to view information about the hardware configuration of the computer and perform hardware diagnostic tests on the subsystems of the computer. The utility simplifies the process of effectively identifying, diagnosing, and isolating hardware issues. The Survey tab is displayed when you invoke HP Insight Diagnostics.
6. Shut down the operating system and turn off the computer. 7. Turn on the computer. The system will boot to the CD. NOTE: If the system does not boot to the CD in the optical drive, you may need to change the boot order in the Computer Setup (F10) utility so that the system attempts to boot to the optical drive before booting to the hard drive. Refer to Computer Setup (F10) Utility on page 3 for more information. 8. Select the appropriate language and click Continue.
Test Tab The Test tab allows you to choose various parts of the system to test. You can also choose the type of test and testing mode. There are three types of tests to choose from: ● Quick Test—Provides a predetermined script where a sample of each hardware component is exercised and requires no user intervention in either Unattended or Interactive mode. ● Complete Test—Provides a predetermined script where each hardware component is fully tested.
After testing has completed, the Cancel Testing button is replaced with a Retest button. The Retest button will retest the last set of tests executed. This enables you to re-run the set of tests without having to re-enter the data in the Test tab.
Saving and Printing Information in HP Insight Diagnostics You can save the information displayed in the HP Insight Diagnostics Survey and Log tabs to a diskette or a USB 2.0 HP Drive Key (64MB or higher). You can not save to the hard drive. The system will automatically create an html file that has the same appearance as the information displayed on the screen. 1. Insert a diskette or USB 2.0 HP Drive Key (capacity must be 64MB or higher). USB 1.0 Drive Keys are not supported. 2.
HP Backup and Recovery Manager The HP Backup and Recovery Manager is an easy-to-use, versatile application that allows you to back up and recover the primary hard drive on the PC. The application works within Windows to create backups of Windows, all applications, and all data files. Backups can be scheduled to occur automatically at designated intervals, or they can be initiated manually. Important files can be archived separately from regular backups.
4 Serial and Parallel ATA Drive Guidelines and Features NOTE: Serial ATA = SATA Parallel ATA = PATA SATA Hard Drives Serial ATA Hard Drive Characteristics Number of pins/conductors in data cable 7/7 Number of pins in power cable 15 Maximum data cable length 39.37 in (100 cm) Data interface voltage differential 400-700 mV Drive voltages 3.3 V, 5 V, 12 V Jumpers for configuring drive N/A Data transfer rate 3.
SATA Hard Drive Cables 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. Current HP desktop products ship with SATA 3.0 Gb/s hard drives. SATA data cables are susceptible to damage if overflexed. Never crease a SATA data cable and never bend it tighter than a 30 mm (1.18 in) radius. The SATA data cable is a thin, 7-pin cable designed to transmit data for only a single drive.
PATA Device Information The USDT model is the only product that supports a PATA optical drive. No PATA drives are supported on any other model. ATA SMART Drives The Self Monitoring Analysis and Recording Technology (SMART) ATA drives for the HP Personal Computers have built-in drive failure prediction that warns the user or network administrator of an impending failure or crash of the hard drive.
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. 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.
Electrostatic Discharge Information A sudden discharge of static electricity from your finger or other conductor can destroy static-sensitive 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. The device may function normally for a while, but it has been degraded in the internal layers, reducing its life expectancy.
● Avoid contact with pins, leads, or circuitry. ● Place reusable electrostatic-sensitive parts from assemblies in protective packaging or conductive foam. 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.
● Conductive foam ● Conductive tabletop workstations with ground cord of one-megohm +/- 10% resistance ● Static-dissipative table or floor mats with hard tie to ground ● Field service kits ● 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 tub
Routine Care General Cleaning Safety Precautions 1. Never use solvents or flammable solutions to clean the computer. 2. Never immerse any parts in water or cleaning solutions; apply any liquids to a clean cloth and then use the cloth on the component. 3. Always unplug the computer when cleaning with liquids or damp cloths. 4. Always unplug the computer before cleaning the keyboard, mouse, or air vents. 5. Disconnect the keyboard before cleaning it. 6.
● If you remove a key, use a specially designed key puller to prevent damage to the keys. This tool is available through many electronic supply outlets. CAUTION: Never remove a wide leveled key (like the space bar) from the keyboard. If these keys are improperly removed or installed, the keyboard may not function properly. ● Cleaning under a key may be done with a swab moistened with isopropyl alcohol and squeezed out. Be careful not to wipe away lubricants necessary for proper key functions.
● Diagnostics software ● HP tamper-resistant T-15 wrench (Smart Cover FailSafe Key, PN 166527-001) or HP tamperresistant bits (Smart Cover FailSafe Key, PN 166527-002) Screws The screws used in the computer are not interchangeable. They may have standard or metric threads and may be of different lengths. If an incorrect screw is used during the reassembly process, it can damage the unit.
Lithium Coin Cell Battery The battery that comes with the computer provides power to the real-time clock and has a minimum lifetime of about three years. See the appropriate removal and replacement chapter for the chassis you are working on in this guide for instructions on the replacement procedures. WARNING! This computer contains a lithium battery. There is a risk of fire and chemical burn if the battery is handled improperly.
6 Removal 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 removal and replacement procedures, run the Diagnostics utility to verify that all components operate properly. NOTE: Not all features listed in this guide are available on all computers.
Preparation for Disassembly See Identifying the Chassis, Routine Care, and Disassembly Preparation on page 18 for initial safety procedures. 1. Remove/disengage any security devices that prohibit opening the computer (External Security Devices on page 28). 2. Close any open software applications. 3. Exit the operating system. 4. Remove any diskette, compact disc, or media card from the computer. 5. Turn off the computer and any peripheral devices that are connected to it.
External Security Devices The following security devices are used to prevent unauthorized access to the internal components of the computer and/or secure the computer to a fixed object.
HP Business PC Security Lock 1. Fasten the security cable by looping it around a stationary object. 2. Thread the keyboard and mouse cables through the lock.
30 3. Screw the lock to the chassis using the screw provided. 4. Insert the plug end of the security cable into the lock (1) and push the button in (2) to engage the lock. Use the key provided to disengage the lock.
Computer Access Panel 1. Prepare the computer for disassembly (Preparation for Disassembly on page 27). 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. Loosen the screw (1) that secures the access panel to the computer chassis. 3. Slide the access panel back (2) about 1.3 cm (1/2 inch), then lift it off the unit. To install the access panel, reverse the removal procedure.
Front Bezel 1. Prepare the computer for disassembly (Preparation for Disassembly on page 27). 2. Remove the computer access panel (Computer Access Panel on page 31). 3. Press outward on the three latches on the right side of the bezel (1), then rotate the right side of the bezel off the chassis (2) followed by the left side. To reinstall the front bezel, reverse the removal procedure.
Removing Bezel Blanks On some models, there are bezel blanks covering the 3.5-inch and 5.25-inch external drive bays that need to be removed before installing a drive. To remove a bezel blank: 1. Remove the front bezel. 2. To remove a 5.25-inch blank, break the blank out of the bezel (1). – or – To remove a 3.25-inch blank, press the two tabs on the left side of the blank (2) toward the right, and then pull the blank inward to remove it (3). 3. Replace the front bezel.
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 modules. Printed circuit cards like these are not designed to take excessive pressure on them. ● Keep cables clear of sliding or moveable parts to prevent them from being cut or crimped when the parts are moved. ● When folding a flat ribbon cable, never fold to a sharp crease.
Cable Connections System board connectors are color-coded to make it easier to find the proper connection.
Memory The computer comes with double data rate 2 synchronous dynamic random access memory (DDR2SDRAM) dual inline memory modules (DIMMs). The memory sockets on the system board can be populated with up to four industry-standard DIMMs. These memory sockets are populated with at least one preinstalled DIMM. To achieve the maximum memory support, you can populate the system board with up to 4 GB of memory configured in a highperforming dual channel mode.
Item Description Socket Color 1 DIMM socket XMM1, Channel A (populate first) Black 2 DIMM socket XMM2, Channel B (populate second) Black 3 DIMM socket XMM3, Channel A Blue 4 DIMM socket XMM4, Channel B Blue The system will automatically operate in single channel mode or dual channel mode, depending on how the DIMMs are installed. ● The system will operate in a higher-performing dual channel mode if like-sized DIMMs of equal capacity are populated in one or both pairs of sockets.
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. Static electricity can damage the electronic components of the computer or optional cards. Before beginning these procedures, ensure that you are discharged of static electricity by briefly touching a grounded metal object.
Expansion Cards The computer has one standard PCI expansion slot that can accommodate an expansion card up to 17.46 cm (6.875 inches) in length. The computer also has two PCI Express x1 expansion slots and one PCI Express x16 expansion slot.
4. On the rear of the computer, a slot cover lock secures the expansion card brackets in place. Remove the screw from the slot cover lock then slide the slot cover lock up to remove it from the chassis. 5. Before installing an expansion card, remove the expansion slot cover or the existing expansion card. NOTE: Before removing an installed expansion card, disconnect any cables that may be attached to the expansion card. a.
b. If you are removing a standard PCI card, hold the card at 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 the other components. c. If you are removing a PCI Express x16 card, pull the retention arm on the back of the expansion socket away from the card and carefully rock the card back and forth until the connectors pull free from the socket. Be sure not to scrape the card against the other components. 6.
8. To install a new expansion card, hold the card just above the expansion socket on the system board then move the card toward the rear of the chassis so that the bottom of the bracket on the card slides into the small slot on the chassis. Press the card straight down into the expansion socket on the system board. NOTE: When installing an expansion card, press firmly on the card so that the whole connector seats properly in the expansion card slot. 9.
Drives When installing additional drives, follow these guidelines: ● The primary Serial ATA (SATA) hard drive must be connected to the dark blue primary SATA connector on the system board labeled SATA0. ● Connect the first SATA optical drive to the white SATA connector on the system board labeled SATA1. ● Always populate the dark blue SATA0 and white SATA1 connectors before the light blue SATA2 and orange SATA3 connectors. ● Connect a second SATA optical drive to the orange SATA3 connector.
CAUTION: To prevent loss of work and damage to the computer or drive: If you are inserting or removing a drive, shut down the operating system properly, turn off the computer, and unplug the power cord. Do not remove a drive while the computer is on or in standby mode. Before handling a drive, ensure that you are discharged of static electricity. While handling a drive, avoid touching the connector. Handle a drive carefully; do not drop it. Do not use excessive force when inserting a drive.
Table 6-2 System Board Drive Connections (continued) No. System Board Connector System Board Label Color 5 SATA3 SATA3 orange 6 Diskette Drive FLOPPY black To verify the type, size, and capacity of the storage devices installed in the computer, run Computer Setup. Refer to Computer Setup (F10) Utility on page 3 for more information. Drive Positions 1 Two 5.25-inch external drive bays for optional drives (optical drives shown) 2 One 3.
Removing an Optical Drive CAUTION: All removable media should be taken out of a drive before removing the drive from the computer. To remove an optical drive: 46 1. Prepare the computer for disassembly (Preparation for Disassembly on page 27). 2. Remove the computer access panel (Computer Access Panel on page 31). 3. Remove the front bezel (Front Bezel on page 32). 4. Disconnect the power cable (1) and data cable (2) from the rear of the optical drive. 5.
Installing an Optical Drive into the 5.25-inch Drive Bay To install an optional 5.25-inch optical drive: 1. Prepare the computer for disassembly (Preparation for Disassembly on page 27). 2. Remove the computer access panel (Computer Access Panel on page 31). 3. Remove the front bezel (Front Bezel on page 32). 4. If you are installing a drive in a bay covered by a bezel blank, remove the front bezel then remove the bezel blank. See Removing Bezel Blanks on page 33 for more information. 5.
9. Connect the power cable (1) and data cable (2) to the rear of the optical drive. 10. Replace the front bezel and access panel. 11. Lock any security devices that were disengaged when the access panel was removed. The system automatically recognizes the drive and reconfigures the computer. Removing an External 3.5-inch Drive CAUTION: All removable media should be taken out of a drive before removing the drive from the computer. NOTE: 48 The 3.
4. Disconnect the drive cables, as indicated in the following illustrations: a. If you are removing a diskette drive, disconnect the data cable (1) and power cable (2) from the back of the drive. b. If you are removing a media card reader, disconnect the USB cable from the system board.
5. Remove the retainer screws that secure the drive to the bay (1) then slide the drive forward and out of the bay (2). Installing a Drive into the 3.5-inch External Drive Bay The 3.5-inch external drive bay on the front of the computer can be configured with a media card reader or a diskette drive. 50 1. Prepare the computer for disassembly (Preparation for Disassembly on page 27). 2. Remove the computer access panel (Computer Access Panel on page 31). 3.
7. Slide the drive in through the front of the chassis (1) until the bezel on the drive is evenly aligned with the computer front bezel and install the M3 metric retainer screws (2) as shown in the illustration below. NOTE: Extra drive retainer screws are provided on the interior of the front bezel if needed. The M3 metric retainer screws for diskette drives or media card readers are black. 8. Connect the appropriate drive cables: a.
Removing an Internal 3.5-inch Hard Drive NOTE: Before you remove the old hard drive, be sure to back up the data from the old hard drive so that you can transfer the data to the new hard drive. Also, if you are replacing the primary hard drive, make sure you have created a Recovery Disc Set to restore the operating system, software drivers, and any software applications that were preinstalled on the computer. If you do not have this CD set, select Start > HP Backup and Recovery and create it now. 52 1.
5. Lift the hard disk drive cage out of the chassis. 6. Disconnect the power cable (1) and data cable (2) from the back of the hard drive.
7. Remove the four screws that secure the hard disk drive to the hard disk drive cage (1), then slide the hard disk drive out of the hard disk drive cage (2). Installing an Internal 3.5-inch Hard Drive 1. 54 Follow the steps in Removing an Internal 3.5-inch Hard Drive on page 52 to remove the hard drive cage and, if necessary, the existing hard drive.
2. Slide the new drive into the hard disk drive cage (1), aligning the drive with the four screw holes on the cage. Install the four 6-32 standard screws that secure the hard disk drive to the hard disk drive cage (2). Make sure the hard disk drive cables are facing the top of the drive cage. NOTE: If you are replacing an old drive with a new drive, use the four retainer screws from the old drive to install the new drive.
4. Place the hard disk drive cage into the chassis (1), then slide it down toward the bottom of the chassis until it locks into place (2). 5. Attach the two screws that secure the hard disk drive cage to the chassis. 6. If installing a new drive, connect the opposite end of the data cable to the appropriate system board connector.
NOTE: If you are replacing the primary hard drive, use the Recovery Disc Set to restore the operating system, software drivers, and any software applications that were preinstalled on the computer. Front USB Panel 1. Prepare the computer for disassembly (Preparation for Disassembly on page 27). 2. Remove the computer access panel (Computer Access Panel on page 31). 3. Remove the front bezel (Front Bezel on page 32). 4.
Power Switch/LED Assembly 1. Prepare the computer for disassembly (Preparation for Disassembly on page 27). 2. Remove the computer access panel (Computer Access Panel on page 31). 3. Remove the front bezel (Front Bezel on page 32). 4. Remove the optical drive (Removing an Optical Drive on page 46). 5. Disconnect the cable from the black system board connector labeled F_PANEL. 6. Remove the cable from the metal clamps on the side of the drive cage.
Heatsink You will need a screwdriver with a narrow shaft to loosen the heatsink screws. 1. Prepare the computer for disassembly (Preparation for Disassembly on page 27). 2. Remove the computer access panel (Computer Access Panel on page 31). 3. Unplug the fan cable from the system board (CPU FAN). 4. Lift the silver latch that tightens the heatsink, and then pull the latch toward the heatsink to remove the metal hook from the tab on the backplate. 5.
To remove the backplate from the system board: 60 1. Remove the four silver Phillips screws that secure the backplate to the system board. 2. Remove the backplate from the system board.
Processor 1. Prepare the computer for disassembly (Preparation for Disassembly on page 27). 2. Remove the computer access panel (Computer Access Panel on page 31). 3. Remove the heatsink (Heatsink on page 59). 4. Rotate the locking lever to its full open position (1). 5. Raise and rotate the microprocessor retainer to its fully open position (2). 6. Carefully lift the processor from the socket (3). CAUTION: Do NOT handle the pins in the processor socket.
5. If using a new heatsink, remove the protective covering from the bottom of the heatsink and place it in position atop the processor. 6. Secure the heatsink to the system board and system board tray with the four captive screws and attach the heatsink control cable to the system board. CAUTION: Heatsink retaining screws should be tightened in diagonally opposite pairs (as in an X) to evenly seat the heatsink on the processor.
When replacing the speaker, be sure to route the wire behind the hard drive cage bracket, through the metal clamp on the chassis, through the metal clamp on the side of the second hard drive cage, and then down to the system board. Rear Chassis Fan 1. Prepare the computer for disassembly (Preparation for Disassembly on page 27). 2. Remove the computer access panel (Computer Access Panel on page 31). 3. Disconnect the fan control cable from the red system board connector labeled SYS_FAN1. 4.
Power Supply 64 1. Prepare the computer for disassembly (Preparation for Disassembly on page 27). 2. Remove the computer access panel (Computer Access Panel on page 31). 3. Disconnect all power cables from the drives and from the system board. 4. Remove the four silver T15 screws that connect the power supply to the chassis. 5. While pressing the tab in front of the power supply that holds it in place, pull the power supply up slightly to loosen it from the chassis. 6.
To install the power supply, reverse the removal procedure. System Board 1. Prepare the computer for disassembly (Preparation for Disassembly on page 27). 2. Remove the computer access panel (Computer Access Panel on page 31). 3. Remove all expansion boards (Expansion Cards on page 39). 4. Disconnect all cables connected to the system board, noting their location for reinstallation. 5. Remove the heatsink (Heatsink on page 59). 6.
Battery The battery that comes with the computer provides power to the real-time clock. When replacing the battery, use a battery equivalent to the battery originally installed in the computer. The computer comes with a 3-volt lithium coin cell battery. WARNING! The computer contains an internal lithium manganese dioxide battery. There is a risk of fire and burns if the battery is not handled properly. To reduce the risk of personal injury: Do not attempt to recharge the battery.
Type 1 Battery Holder 1. Lift the battery out of its holder. 2. Slide the replacement battery into position, positive side up. 3. The battery holder automatically secures the battery in the proper position. 4. Replace the computer access panel. 5. Plug in the computer and turn on power to the computer. 6. Reset the date and time and any special system setups using Computer Setup. Refer to Computer Setup (F10) Utility on page 3. Type 2 Battery Holder 1.
4. Plug in the computer and turn on power to the computer. 5. Reset the date and time and any special system setups using Computer Setup. Refer to Computer Setup (F10) Utility on page 3. Type 3 Battery Holder 68 1. Pull back on the clip (1) that holds the battery in place, then remove the battery (2). 2. Insert the new battery and position the clip back in place. 3. Replace the computer access panel. 4. Plug in the computer and turn on power to the computer. 5.
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.
Ethernet RJ-45 Connector and Icon Pin Signal 1 (+) Transmit Data 2 (-) Transmit Data 3 (+) Receive Data 4 Unused 5 Unused 6 (-) Receive Data 7 Unused 8 Unused Ethernet AUI Connector and Icon 70 Pin Signal Pin Signal 1 Ground 9 Positive AUI Differential Receive 2 Negative AUI Differential Collision 10 +12V 3 Positive AUI Differential Collision 11 Ground 4 Negative AUI Differential Transmit 12 Ground 5 Positive AUI Differential Transmit 13 Unused 6 Ground 14 Unu
Parallel Interface Connector and Icon Pin Signal Pin Signal 1 Strobe 10 Acknowledge 2 Data Bit 0 11 Busy 3 Data Bit 1 12 Paper End 4 Data Bit 2 13 Select 5 Data Bit 3 14 Auto Linefeed 6 Data Bit 4 15 Error 7 Data Bit 5 16 Initialize Printer 8 Data Bit 6 17 Select IN 9 Data Bit 7 18–25 Signal Ground Serial Interface, Powered and Non-Powered Connector and Icon Pin Signal 1 Carrier Detect (12V if powered) 2 Receive Data 3 Transmit Data 4 Data Terminal Ready 5
USB Connector and Icon Pin Signal 1 +5 VDC 2 - Data 3 + Data 4 Ground Pin Signal 1 (Tip) Audio_left 2 (Ring) Power_Right 3 (Shield) Audio_right Pin Signal 1 (Tip) Audio_left 2 (Ring) Power_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 Microphone Connector and Icon (1/8” miniphone) 1 2 3 Headphone Connector and Icon (1/8” miniphone) 1
External Infrared Transceiver Connector and Icon Pin Signal 1 Transmit 2 Receive 3 Ground 4 5V 5 Mode 6 Not Used 7 Not Used 8 Not Used Monitor Connector and Icon Pin Signal Pin Signal 1 Red Analog 9 +5V (fused) 2 Green Analog 10 Ground 3 Blue Analog 11 Not used 4 Not used 12 DDC Serial Data 5 Ground 13 Horizontal Sync 6 Ground 14 Vertical Sync 7 Ground 15 DDC Serial Clock 8 Ground External Infrared Transceiver 73
ATA/ATAPI (IDE) Standard Drive Cable Connector 74 Pin Signal Pin Signal Pin Signal 1 Reset 15 DD1 29 DMAK 2 Ground 16 DD14 30 Ground 3 DD7 17 DD0 31 INTRQ 4 DD8 18 DD15 32 IOCS16 5 DD6 19 Ground 33 DA1 6 DD9 20 (Key) 34 PDIAG (cable detect) 7 DD5 21 DMARQ 35 DA0 8 DD10 22 Ground 36 DA2 9 DD4 23 DIOW 37 CS1FX 10 DD11 24 Ground 38 CS3FX 11 DD3 25 DIOR 39 DASP 12 DD12 26 Ground 40 Ground 13 DD2 27 IORDY 14 DD13 28 CSEL Appe
CD-ROM 50-Pin Connector Connector Pin Signal Pin Signal Pin Signal Pin Signal 1 Audio L-ch 14 DD12 27 IORDY 40 +5V 2 Audio R-ch 15 DD3 28 DMACK 41 +5V 3 Audio GND 16 DD13 29 INTRQ 42 +5V 4 GND 17 DD2 30 IOCS16 43 GND 5 RESET 18 DD14 31 DA1 44 GND 6 DD8 19 DD1 32 PDIAG 45 GND 7 DD7 20 DD15 33 DA0 46 GND 8 DD9 21 DD0 34 DA2 47 CSEL 9 DD6 22 DMARQ 35 CS1FX 48 GND 10 DD10 23 GND 36 CS3FX 49 Vendor-specific 11 DD5 24 DIOR
24-Pin MicroFit Power Connector 24 13 Front 12 1 Pin Signal Pin Signal Pin Signal Pin Signal 1 +5 Vaux 7 PWRGD 13 +12V 19 GND 2 GND 8 +3.3V 14 +5V Sense 20 +3.3V 3 +5V 9 +3.3V 15 GND 21 Sense 4 +5V 10 Tach 16 +5V 22 +3.3V 5 PS_ON 11 GND 17 +5V 23 +3.3V 6 GND 12 Fan-CMD 18 +3.
SATA Data and Power Drive Connector Pin Signal Pin Signal Pin Signal Pin Signal S1 Ground S2 A+ S3 A- S4 Ground S5 B- S6 B+ S7 Ground P1 Ground P2 V 3.3 P3 V 3.
52 PERp8 57 PERn9 62 GND 67 GND 72 PERp13 53 PERN8 58 GND 63 GND 68 PERp12 73 PERn13 54 GND 59 GND 64 PERp11 69 PERn12 74 GND 55 GND 60 PERp10 65 PERn11 70 GND 75 GND 76 PERp14 81 PERn15 77 PERn14 82 GND 78 GND 79 GND 80 PERp15 NOTE: x1 PCI Express uses pins 1-18 x4 PCI Express uses pins 1-32 x8 PCI Express uses pins 1-49 x16 PCI Express uses pins 1-8 PCI Express x1, x4, x8, and x16 PCI Express Connector Pin B 78 Pin Signal Pin Signal Pin Signal
52 GND 57 GND 62 PETp11 67 PETn12 72 GND 53 GND 58 PETp10 63 PETn11 68 GND 73 GND 54 PETp9 59 PETn10 64 GND 69 GND 74 PETp14 55 PETn9 60 GND 65 GND 70 PETp13 75 PETn14 76 GND 81 PRSNT2# 77 GND 82 RSVD 78 PETp15 79 PETn15 80 GND NOTE: x1 PCI Express uses pins 1-18 x4 PCI Express uses pins 1-32 x8 PCI Express uses pins 1-49 x16 PCI Express uses pins 1-8 PCI Express Mini Card PCI Express Mini Card Connector Pin Signal Pin Signal Pin Signal Pin Si
31 PETn0 37 Reserved* 43 Reserved* 49 Reserved* 32 SMB_DATA 38 USB_D+ 44 LED_WLAN# 50 GND 33 PETp0 39 Reserved* 45 Reserved* 51 Reserved* 34 GND 40 GND 46 LED_WPAN# 52 +3.3V 36 GND 41 Reserved* 47 Reserved* 36 USB_D- 42 LED_WWAN# 48 +1.
B Power Cord Set Requirements The power supplies on some computers have external power switches. The voltage select switch feature on the computer permits it to operate from any line voltage between 100-120 or 220-240 volts AC. Power supplies on those computers that do not have external power switches are equipped with internal switches that sense the incoming voltage and automatically switch to the proper voltage.
Country-Specific Requirements Additional requirements specific to a country are shown in parentheses and explained below. 82 Country Accrediting Agency Country Accrediting Agency Australia (1) EANSW Italy (1) IMQ Austria (1) OVE Japan (3) METI Belgium (1) CEBC Norway (1) NEMKO Canada (2) CSA Sweden (1) SEMKO Denmark (1) DEMKO Switzerland (1) SEV Finland (1) SETI United Kingdom (1) BSI France (1) UTE United States (2) UL Germany (1) VDE 1.
C Troubleshooting Safety and Comfort WARNING! Misuse of the computer or failure to establish a safe and comfortable work environment may result in discomfort or serious injury. Refer to the Safety & Comfort Guide available on the Web site at http://www.hp.com/ergo for more information on choosing a workspace and creating a safe and comfortable work environment. WARNING! Energized and moving parts inside. Disconnect power to the equipment before removing the enclosure.
To assist you in resolving problems online, HP Instant Support Professional Edition provides you with self-solve diagnostics. If you need to contact HP support, use HP Instant Support Professional Edition's online chat feature. Access HP Instant Support Professional Edition at: http://www.hp.com/go/ispe. Access the Business Support Center (BSC) at http://www.hp.
● If you have installed an operating system other than the factory-installed operating system, check to be sure that it is supported on the system. ● If the system has multiple video sources (embedded, PCI, or PCI-Express adapters) installed and a single monitor, the monitor must be plugged into the monitor connector on the source selected as the primary VGA adapter. During boot, the other monitor connectors are disabled and if the monitor is connected into these ports, the monitor will not function.
Computer will not respond to USB keyboard or mouse. Cause Solution Keyboard or mouse is not connected to computer. Connect keyboard and mouse cables to computer. Computer is in standby mode. To resume from standby mode, press the power button or press any key. CAUTION: When attempting to resume from standby mode, do not hold down the power button for more than four seconds. Otherwise, the computer will shut down and you will lose any unsaved data. Computer date and time display is incorrect.
Poor performance is experienced. Cause Solution Too many applications running. 1. Close unnecessary applications to free up memory. Some applications run in the background and can be closed by right-clicking on their corresponding icons in the task tray. To prevent these applications from launching at startup, go to Start > Run (Microsoft Windows XP) or Start > All Programs > Accessories > Run (Microsoft Windows Vista) and type msconfig.
Computer is beeping and will not start. Cause Solution Internal error has occurred and the computer is beeping a code. Refer to Interpreting POST Audible Codes on page 90 to interpret the error code. Solving Hardware Installation Problems You may need to reconfigure the computer when you add or remove hardware, such as an additional drive or expansion card. If you install a plug and play device, the Windows operating system automatically recognizes the device and configures the computer.
Computer will not start. Cause Solution Wrong memory modules were used in the upgrade or memory modules were installed in the wrong location. 1. Review the documentation that came with the system to determine if you are using the correct memory modules and to verify the proper installation. 2. Listen for beeps from the computer. See Interpreting POST Audible Codes on page 90 to determine possible causes. 3. If you still cannot resolve the issue, contact Customer Support.
Interpreting POST Audible Codes This section covers the audible codes that may occur before or during POST that do not necessarily have an error code or text message associated with them. WARNING! When the computer is plugged into an AC power source, voltage is always applied to the system board. To reduce the risk of personal injury from electrical shock and/or hot surfaces, be sure to disconnect the power cord from the wall outlet and allow the internal system components to cool before touching.
Contacting Customer Support For help and service, contact an authorized reseller or dealer. To locate a reseller or dealer near you, visit http://www.hp.com. NOTE: If you take the computer to an authorized reseller, dealer, or service provider for service, remember to provide the setup and power-on passwords if they are set. Refer to the number listed in the warranty or in the Support Telephone Numbers guide for technical assistance.
D System Board and Riser Board Reference Designators These reference designators are used on most but not all HP system and riser boards.
J38 Secondary SCSI connector J39 Stacked parallel/SCSI connector J40 AGP slot J41 x16 PCI Express slot for graphics J50 First parallel port J51 Second parallel port J52 Double-stacked parallel port, Top = Port B, Bottom = Port A J53 Parallel port over single Serial Port J54 Parallel port over Serial Port and Video Port J55 Parallel port over dual VGA ports J65 DVI connector J66 Keyboard connector, PS/2 (Closest to power supply) J67 Mouse connector, PS/2 J68 Stacked mouse (Top)/key
94 L3 USB rear port choke (2nd) L4 USB rear port choke (3rd) L5 USB front port choke (2nd) P1 P/S connector (20 or 24 pin) P2 Second P/S connector (as required) P3 Processor 12V header P4 Secondary Processor 12V header P5 Main Power/HDD LED connector P6 Speaker connector P7 Analog audio connector (from CD-ROM) P8 Primary chassis fan header or primary CPU heatsink fan P9 Secondary chassis fan header P10 Diskette drive connector P11 Auxiliary Audio connector P12 Alert on LAN conn
P54 Primary serial port P55 Double stack serial port, Top = Serial B, Bottom = Serial A P58 Riser edge connector (male-mates with J30) P60 PrimarySerial ATA (SATA) connector P61 Second Serial ATA (SATA) connector P62 Third Serial ATA (SATA) connector P63 Fourth Serial ATA (SATA) connector P64 VSFF expansion connector P65 Graphics option connector P66 Fifth Serial ATA (SATA) connector P67 Sixth Serial ATA (SATA) connector P68 Seventh Serial ATA (SATA) connector P69 Eighth Serial ATA
96 U4 South bridge U5 Super I/O U6 Clock chip U7 64 bit Bridge U10 LOM1 U11 LOM1 EEPROM U12 LOM1 PHY U13 Audio Codec U14 Audio amplifier U16 LOM2 U17 LOM2 EEPROM U18 LOM2 PHY U19 SPI ROM - SOIC-8 footprint U20 Fan controller U21 SPI ROM - SO16 footprint U29 TMDS controller U30 Parallel port diode array U31 First serial port transceiver U32 Second serial port transceiver U46 VRM controller U50 USB front port power switch U51 First USB rear port power switch U52 S
Y4 Secondary NIC clock crystal Y5/H5 RTC clock crystal/tie-down 97
E Specifications Table E-1 Specifications Desktop Dimensions Height 16.37 in 41.58 cm Width 7.24 in 18.40 cm Depth 14.95 in 37.98 cm Approximate Weight 20.26 lb 9.19 kg Operating 50° to 104°F 10° to 40°C Nonoperating -22° to 140°F -30° to 60°C Operating 15-90% 15-90% Nonoperating (38.
Table E-1 Specifications (continued) Rated Input Current (maximum)1 1 8A @ 100 VAC 4A @ 200 VAC This system utilizes a passive power factor corrected power supply. The power factor correction is present in the 230V operating mode only. This allows the system to pass the CE mark requirements for use in the countries of the European Union. This supply requires the use of an input voltage range select switch.
Index Symbols/Numerics 24-pin MicroFit power pin assignments 76 24-pin power pin assignments 75 4-pin power pin assignments 76 6-pin power pin assignments 76 A ATA/ATAPI (IDE) drive cable pin assignments 74 B battery disposal 25 removal and replacement 66 C cable connections 35 cable management 34 cable pinouts SATA data 16 SATA power 16 cautions AC power 18 cables 24 cooling fan 23 electrostatic discharge 19 keyboard cleaning 22 keyboard keys 23 CD-ROM connector pin assignments 75 chasis types, illustrate
M media card reader installing 50 removing 48 memory removal and replacement 36 microphone pin assignments 72 monitor pin assignments 73 mouse cleaning 23 pin assignments 69 O operating guidelines 21 optical drive installing 47 removing 46 overheating, prevention 21 P parallel interface pin assignments 71 PCI card 39, 41 PCI Express card 39, 41 PCI Express Mini Card pin assignments 79 PCI Express pin assignments power cord set requirements country specific 82 power supply fan 23 removal and replacement powe
