Hardware Reference Guide - dc7900 Series Small Form Factor HP Compaq Business PC
© Copyright 2008 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. Microsoft, Windows, and Windows Vista are either trademarks or registered trademarks of Microsoft Corporation in the United States and/or 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.
About This Book This guide provides basic information for upgrading this computer model. WARNING! Text set off in this manner indicates that failure to follow directions could result in bodily harm or loss of life. CAUTION: Text set off in this manner indicates that failure to follow directions could result in damage to equipment or loss of information. NOTE: Text set off in this manner provides important supplemental information.
iv About This Book ENWW
Table of contents 1 Product Features Standard Configuration Features ......................................................................................................... 1 Front Panel Components ..................................................................................................................... 2 Media Card Reader Components ......................................................................................................... 3 Rear Panel Components ................................
Removing and Replacing the Primary 3.5-inch Internal SATA Hard Drive ........................ 41 Removing and Replacing a Removable 3.5-inch SATA Hard Drive .................................. 45 Appendix A Specifications Appendix B Battery Replacement Appendix C External Security Devices Installing a Security Lock .................................................................................................................... 55 Cable Lock .................................................................
1 Product Features Standard Configuration Features The HP Compaq Small Form Factor features may vary depending on the model. For a complete listing of the hardware and software installed in the computer, run the diagnostic utility (included on some computer models only). Instructions for using the utility are provided in the Troubleshooting Guide. NOTE: The Small Form Factor computer can also be used in a tower orientation.
Front Panel Components Drive configuration may vary by model. Figure 1-2 Front Panel Components Table 1-1 Front Panel Components 1 2 1 5.25-inch Optical Drive1 6 Power On Light 2 Optical Drive Activity Light 7 3.5-inch Bay for Optional Drives2 3 Optical Drive Eject Button 8 Microphone Connector 4 Hard Drive Activity Light 9 USB (Universal Serial Bus) Ports 5 Dual-State Power Button 10 Headphone Connector Some models are configured with a bezel blank covering this bay.
Media Card Reader Components The media card reader is an optional device available on some models only. Refer to the following illustration and table to identify the media card reader components. Figure 1-3 Media Card Reader Components Table 1-2 Media Card Reader Components No.
Rear Panel Components Figure 1-4 Rear Panel Components Table 1-3 Rear Panel Components 1 RJ-45 Network Connector 6 Universal Serial Bus (USB) 2 Serial Connector 7 DisplayPort Monitor Connector 3 PS/2 Mouse Connector (green) 8 VGA Monitor Connector 4 Power Cord Connector 9 PS/2 Keyboard Connector (purple) 5 Line-In Audio Connector (blue) 10 Line-Out Connector for powered audio devices (green) NOTE: Arrangement and number of connectors may vary by model.
Keyboard Figure 1-5 Keyboard Components Table 1-4 Keyboard Components 1 ENWW 1 Function Keys Perform special functions depending on the software application being used. 2 Editing Keys Includes the following: Insert, Home, Page Up, Delete, End, and Page Down. 3 Status Lights Indicate the status of the computer and keyboard settings (Num Lock, Caps Lock, and Scroll Lock). 4 Numeric Keys Work like a calculator keypad. 5 Arrow Keys Used to navigate through a document or Web site.
Using the Windows Logo Key Use the Windows Logo key in combination with other keys to perform certain functions available in the Windows operating system. Refer to Keyboard on page 5 to identify the Windows Logo key. Table 1-5 Windows Logo Key Functions The following Windows Logo Key functions are available in Microsoft Windows XP and Microsoft Windows Vista.
Serial Number Location Each computer has a unique serial number and product ID number in the location shown below. Keep these numbers available for use when contacting customer service for assistance.
2 Hardware Upgrades Serviceability Features The computer includes features that make it easy to upgrade and service. No tools are needed for most of the installation procedures described in this chapter. Warnings and Cautions Before performing upgrades be sure to carefully read all of the applicable instructions, cautions, and warnings in this guide.
Unlocking the Smart Cover Lock NOTE: The Smart Cover Lock is an optional feature included on some models only. The Smart Cover Lock is a software-controllable cover lock, controlled by the setup password. This lock prevents unauthorized access to the internal components. The computer ships with the Smart Cover Lock in the unlocked position. For more information about locking the Smart Cover Lock, refer to the Desktop Management Guide.
6. Use the Smart Cover FailSafe Key to remove the tamper-proof screw that secures the Smart Cover Lock to the chassis. Figure 2-1 Removing the Smart Cover Lock Screw You can now remove the access panel. See Removing the Computer Access Panel on page 11. To reattach the Smart Cover Lock, secure the lock in place with the tamper-proof screw.
Removing the Computer Access Panel 1. Remove/disengage any security devices that prohibit opening the computer. 2. Remove all removable media, such as diskettes or compact discs, from the computer. 3. Turn off the computer properly through the operating system, then turn off any external devices. 4. Disconnect the power cord from the power outlet and disconnect any external devices.
Replacing the Computer Access Panel Align the tabs on the panel with the slots on the chassis (1) then slide the access panel all the way onto the chassis until it locks into place (2).
Removing the Front Bezel 1. Remove/disengage any security devices that prohibit opening the computer. 2. Remove all removable media, such as diskettes or compact discs, from the computer. 3. Turn off the computer properly through the operating system, then turn off any external devices. 4. Disconnect the power cord from the power outlet and disconnect any external devices.
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 the 3.5-inch bezel blank, push the two retaining tabs that hold the bezel blank in place towards the outer right edge of the bezel (1) and slide the bezel blank to the right to remove it (2). Figure 2-5 Removing a 3.5-inch Bezel Blank 3. To remove the 5.
Replacing the Front Bezel Insert the two hooks on the left side of the bezel into the rectangular holes on the chassis (1) then rotate the right side of the bezel onto the chassis (2) and snap it into place.
Using the Small Form Factor Computer in a Tower Orientation The Small Form Factor computer can be used in a tower orientation. The HP logo plate on the front bezel is adjustable for either desktop or tower orientation. 1. Remove/disengage any security devices that prohibit opening the computer. 2. Remove all removable media, such as diskettes or compact discs, from the computer. 3. Turn off the computer properly through the operating system, then turn off any external devices. 4.
11. Orient the computer so that its right side is facing down. Figure 2-9 Changing from Desktop to Tower Orientation NOTE: To stabilize the computer in a tower orientation, HP recommends the use of the optional tower stand. 12. Reconnect the power cord and any external devices, then turn on the computer. 13. Lock any security devices that were disengaged when the access panel was removed. NOTE: Ensure at least 10.
Installing Additional Memory The computer comes with double data rate 2 synchronous dynamic random access memory (DDR2SDRAM) dual inline memory modules (DIMMs). 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 16-GB of memory configured in a highperforming dual channel mode.
Populating DIMM Sockets There are four DIMM sockets on the system board, with two sockets per channel. The sockets are labeled DIMM1, DIMM2, DIMM3, and DIMM4. Sockets DIMM1 and DIMM2 operate in memory channel A. Sockets DIMM3 and DIMM4 operate in memory channel B.
and the remainder is assigned to single channel. For optimal speed, the channels should be balanced so that the largest amount of memory is spread between the two channels. If one channel will have more memory than the other, the larger amount should be assigned to Channel A. For example, if you are populating the sockets with one 1-GB DIMM, and three 512-MB DIMMs, Channel A should be populated with the 1-GB DIMM and one 512-MB DIMM, and Channel B should be populated with the two 512-MB DIMMs.
8. Open both latches of the memory module socket (1), and insert the memory module into the socket (2). Figure 2-11 Installing a DIMM NOTE: A memory module can be installed in only one way. Match the notch on the module with the tab on the memory socket. A DIMM must occupy the black DIMM1 socket. For maximum performance, populate the sockets so that the memory capacity is spread as equally as possible between Channel A and Channel B. Refer to Populating DIMM Sockets on page 19 for more information. 9.
Removing or Installing an Expansion Card The computer has one PCI expansion slot, one PCI Express x1 expansion slot, one PCI Express x16 expansion slot, and one PCI Express x16 expansion slot that is downshifted to a x4 slot. NOTE: The PCI and PCI Express slots support only low profile cards. An optional PCI riser card with two full height standard PCI slots is available from HP.
CAUTION: Regardless of the power-on state, voltage is always present on the system board as long as the system is plugged into an active AC outlet. You must disconnect the power cord to avoid damage to the internal components of the computer. 5. If the computer is on a stand, remove the computer from the stand. 6. Remove the access panel. 7. Locate the correct vacant expansion socket on the system board and the corresponding expansion slot on the back of the computer chassis. 8.
NOTE: Before removing an installed expansion card, disconnect any cables that may be attached to the expansion card. a. If you are installing an expansion card in a vacant socket, remove the appropriate expansion slot cover on the back of the chassis. Pull the slot cover straight up then away from the inside of the chassis. Figure 2-14 Removing an Expansion Slot Cover b.
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. Pull the expansion card straight up from the socket then away from the inside of the chassis to release it from the chassis frame. Be sure not to scrape the card against the other components. Figure 2-16 Removing a PCI Express x16 Expansion Card 10.
12. 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 bracket on the card is aligned with the open slot on the rear of the chassis. Press the card straight down into the expansion socket on the system board. Figure 2-17 Installing an Expansion Card NOTE: When installing an expansion card, press firmly on the card so that the whole connector seats properly in the expansion card slot. 13.
16. If the computer was on a stand, replace the stand. 17. Reconnect the power cord and turn on the computer. 18. Lock any security devices that were disengaged when the access panel was removed. 19. Reconfigure the computer, if necessary. Refer to the Computer Setup (F10) Utility Guide for instructions on using Computer Setup. Drive Positions Figure 2-19 Drive Positions Table 2-3 Drive Positions 1 3.5-inch internal hard drive bay 2 3.5-inch external drive bay for optional drives 3 5.
Installing and Removing 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 a SATA optical drive to the white SATA connector on the system board labeled SATA1. ● Connect a second SATA hard drive to the next available (unpopulated) SATA connector on the system board by following the numbered sequence of the connectors.
Figure 2-21 Extra Optical Drive M3 Guide Screws Location 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.
System Board Drive Connections Refer to the following illustration and table to identify the system board drive connectors. Figure 2-22 System Board Drive Connections Table 2-4 System Board Drive Connections 30 No.
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: 1. Remove/disengage any security devices that prohibit opening the computer. 2. Remove all removable media, such as diskettes or compact discs, from the computer. 3. Turn off the computer properly through the operating system, then turn off any external devices. 4.
8. Disconnect the power cable (1) and data cable (2) from the rear of the optical drive. Figure 2-24 Disconnecting the Power and Data Cables 9. Rotate the drive cage back down to its normal position. CAUTION: Be careful not to pinch any cables or wires when rotating the drive cage down.
10. Press down on the green drive retainer button located on the left side of the drive to disengage the drive from the drive cage (1). While pressing the drive retainer button, slide the drive back until it stops, then lift it up and out of the drive cage (2). Figure 2-26 Removing the Optical Drive NOTE: To replace the optical drive, reverse the removal procedure. When replacing a drive, transfer the four guide screws from the old drive to the new one. Installing an Optical Drive into the 5.
8. Install two M3 metric guide screws in the lower holes on each side of the drive. HP has provided four extra M3 metric guide screws on the front of the chassis, under the front bezel. The M3 metric guide screws are black. Refer to Installing and Removing Drives on page 28 for an illustration of the extra M3 metric guide screws location. CAUTION: Use only 5-mm long screws as guide screws. Longer screws can damage the internal components of the drive.
10. Rotate the drive cage to its upright position. Figure 2-29 Rotating the Drive Cage Up 11. Connect the SATA data cable to the white system board connector labeled SATA1. 12. Route the data cable through the cable guides. CAUTION: There are two cable guides that keep the data cable from being pinched by the drive cage when raising or lowering it. One is located on the bottom side of the drive cage. The other is located on the chassis frame under the drive cage.
14. Rotate the drive cage back down to its normal position. CAUTION: Be careful not to pinch any cables or wires when rotating the drive cage down. Figure 2-31 Rotating the Drive Cage Down 15. Replace the access panel. 16. If the computer was on a stand, replace the stand. 17. Reconnect the power cord and turn on the computer. 18. Lock any security devices that were disengaged when the access panel was removed. The system automatically recognizes the drive and reconfigures the computer.
2. 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. If the media card reader has a 1394 port, disconnect the 1394 cable from the PCI card.
3. Press the green drive retainer latch (1) located on the right side of the drive to disengage the drive from the drive cage. While pressing the drive retainer latch, slide the drive back until it stops, then lift it up and out of the drive cage (2). Figure 2-35 Removing a 3.5-inch Drive (Diskette Drive shown) NOTE: To replace the 3.5-inch drive, reverse the removal procedure. When replacing a 3.5-inch drive, transfer the four guide screws from the old drive to the new one.
3. Position the guide screws on the drive into the J-slots in the drive bay. Then slide the drive toward the front of the computer until it locks into place. Figure 2-36 Installing a Drive into the 3.5-inch Drive Bay (Diskette Drive shown) 4. Connect the appropriate drive cables: a. If installing a diskette drive, connect the power and data cables to the rear of the drive and connect the other end of the data cable to the connector on the system board labeled FLOPPY. b.
Removing and Replacing the Primary 3.5-inch Internal SATA Hard Drive NOTE: The system does not support Parallel ATA (PATA) hard drives. 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.
8. Rotate the power supply to its upright position. The hard drive is located beneath the power supply. CAUTION: If the computer has a Smart Cover Lock installed next to the drive cage, carefully route all cables around the Smart Cover Lock assembly as you raise the power supply to avoid damage to the cables or lock. Figure 2-38 Raising the Power Supply 9. Disconnect the power cable (1) and data cable (2) from the back of the hard drive.
10. Press down on the green release latch next to the hard drive (1). While holding the latch down, slide the drive forward until it stops, then lift the drive up and out of the bay (2). Figure 2-40 Removing the Hard Drive 11. To install a hard drive, you must transfer the silver and blue isolation mounting guide screws from the old hard drive to the new hard drive.
12. Align the guide screws with the slots on the chassis drive cage, press the hard drive down into the bay, then slide it back until it stops and locks in place. Figure 2-42 Installing the Hard Drive 13. Connect the power and data cables to the back of the hard drive. NOTE: When replacing the primary hard drive, be sure to route the SATA and power cables through the cable guide on the bottom of the chassis frame behind the hard drive.
Removing and Replacing a Removable 3.5-inch SATA Hard Drive Some models are equipped with a Removable SATA Hard Drive Enclosure in the 5.25-inch external drive bay. The hard drive is housed in a carrier that can be quickly and easily removed from the drive bay. To remove and replace a drive in the carrier: 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.
3. Remove the adhesive strip that secures the thermal sensor to the top of the hard drive (1) and move the thermal sensor away from the carrier (2). Figure 2-44 Removing the Thermal Sensor 4. Remove the four screws from the bottom of the hard drive carrier.
5. Slide the hard drive back to disconnect it from the carrier then lift it up and out of the carrier. Figure 2-46 Removing the Hard Drive 6. Place the new hard drive in the carrier then slide the hard drive back so that it seats in the SATA connector on the carrier's circuit board. Be sure the connector on the hard drive is pressed all the way into the connector on the carrier's circuit board.
7. Replace the four screws in the bottom of the carrier to hold the drive securely in place. Figure 2-48 Replacing the Security Screws 8. Place the thermal sensor on top of the hard drive in a position that does not cover the label (1) and attach the thermal sensor to the top of the hard drive with the adhesive strip (2).
9. Slide the cover on the carrier (1) and replace the screw on the rear of the carrier to secure the cover in place (2). Figure 2-50 Replacing the Carrier Cover 10. Slide the hard drive carrier into the enclosure on the computer and lock it with the key provided. NOTE: The carrier must be locked for power to be supplied to the hard drive.
A Specifications Table A-1 Specifications Desktop Dimensions (in the desktop position) Height 3.95 in 10.0 cm Width 13.3 in 33.8 cm Depth 14.9 in 37.8 cm Approximate Weight 19 lb 8.6 kg Weight Supported (maximum distributed load in desktop position) 77 lb 35 kg Operating 50° to 95°F 10° to 35°C Nonoperating -22° to 140°F -30° to 60°C Temperature Range NOTE: Operating temperature is derated 1.0° C per 300 m (1000 ft) to 3000 m (10,000 ft) above sea level; no direct sustained sunlight.
Table A-1 Specifications (continued) Power Output 240 W 240 W Standard PS 4A @ 100 VAC 2A @ 200 VAC 85% Efficient PS 3.5A @ 100VAC 1.75A @ 200VAC Rated Input Current (maximum)1 1 This system utilizes an active power factor corrected power supply. This allows the system to pass the CE mark requirements for use in the countries of the European Union. The active power factor corrected power supply also has the added benefit of not requiring an input voltage range select switch.
B Battery Replacement 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.
NOTE: On some computer models, it may be necessary to remove an internal component to gain access to the battery. 8. Depending on the type of battery holder on the system board, complete the following instructions to replace the battery. Type 1 a. Lift the battery out of its holder. Figure B-1 Removing a Coin Cell Battery (Type 1) b. Slide the replacement battery into position, positive side up. The battery holder automatically secures the battery in the proper position. Type 2 a.
b. Insert the new battery and position the clip back into place. Figure B-3 Removing a Coin Cell Battery (Type 3) NOTE: After the battery has been replaced, use the following steps to complete this procedure. 9. Replace the access panel. 10. If the computer was on a stand, replace the stand. 11. Plug in the computer and turn on power to the computer. 12. Reset the date and time, your passwords, and any special system setups using Computer Setup. Refer to the Computer Setup (F10) Utility Guide. 13.
C External Security Devices NOTE: For information on data security features, refer to the Computer Setup (F10) Utility Guide, the Desktop Management Guide, and the HP ProtectTools Security Manager Guide (some models) at http://www.hp.com. Installing a Security Lock The security locks displayed below and on the following pages can be used to secure the computer.
Padlock Figure C-2 Installing a Padlock 56 Appendix C External Security Devices ENWW
HP Business PC Security Lock 1. Fasten the security cable by looping it around a stationary object. Figure C-3 Securing the Cable to a Fixed Object 2. Thread the keyboard and mouse cables through the lock.
3. Screw the lock to the chassis using the screw provided. Figure C-5 Attaching the Lock to the Chassis 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.
Front Bezel Security The front bezel can be locked in place by installing a security screw provided by HP. The security screw is located on the fan duct inside the chassis. To lock the front bezel, remove the security screw from the fan duct (1) and install it through the chassis frame into the front bezel (2).
D Electrostatic Discharge A discharge of static electricity from a finger or other conductor may damage system boards or other static-sensitive devices. This type of damage may reduce the life expectancy of the device. Preventing Electrostatic Damage To prevent electrostatic damage, observe the following precautions: ● Avoid hand contact by transporting and storing products in static-safe containers.
E Computer Operating Guidelines, Routine Care and Shipping Preparation Computer Operating Guidelines and Routine Care Follow these guidelines to properly set up and care for the computer and monitor: ENWW ● Keep the computer away from excessive moisture, direct sunlight, and extremes of heat and cold. ● Operate the computer on a sturdy, level surface. Leave a 10.2-cm (4-inch) clearance on all vented sides of the computer and above the monitor to permit the required airflow.
Optical Drive Precautions Be sure to observe the following guidelines while operating or cleaning the optical drive. Operation ● Do not move the drive during operation. This may cause it to malfunction during reading. ● Avoid exposing the drive to sudden changes in temperature, as condensation may form inside the unit. If the temperature suddenly changes while the drive is on, wait at least one hour before you turn off the power. If you operate the unit immediately, it may malfunction while reading.
Index A access panel locking and unlocking audio connectors 2, 4 B battery replacement 9, 55 52 C computer specifications 50 computer access panel removing 11 replacing 12 computer operating guidelines 61 connecting drive cables 28 D DIMMs.
R rear panel components 4 removable hard drive replacing 45 removing battery 52 bezel blanks 14 computer access panel 11 diskette drive 36 expansion card 22 expansion slot cover 24 front bezel 13 hard drive 41 media card reader 36 optical drive 31 PCI card 24 PCI Express card 25 Smart Cover Lock 9 S security cable lock 55 front bezel 59 HP Business PC Security Lock 57 padlock 56 Smart Cover Lock 9 serial connector 4 serial number location 7 shipping preparation 62 Smart Cover Lock 9 specifications computer
