HP Compaq dc7900 SFF Uživatelská příručka

Hardware Reference Guide - dc7900 SeriesSmall Form FactorHP Compaq Business PC

Rear Panel ComponentsFigure 1-4 Rear Panel ComponentsTable 1-3 Rear Panel Components1 RJ-45 Network Connector 6 Universal Serial Bus (USB)2 Serial C

KeyboardFigure 1-5 Keyboard ComponentsTable 1-4 Keyboard Components1 Function Keys Perform special functions depending on the software application b

Using the Windows Logo KeyUse the Windows Logo key in combination with other keys to perform certain functions available in theWindows operating syste

Serial Number LocationEach computer has a unique serial number and product ID number in the location shown below. Keepthese numbers available for use

2 Hardware UpgradesServiceability FeaturesThe computer includes features that make it easy to upgrade and service. No tools are needed for mostof the

Unlocking the Smart Cover LockNOTE: The Smart Cover Lock is an optional feature included on some models only.The Smart Cover Lock is a software-contro

6. Use the Smart Cover FailSafe Key to remove the tamper-proof screw that secures the Smart CoverLock to the chassis.Figure 2-1 Removing the Smart Co

Removing the Computer Access Panel1. Remove/disengage any security devices that prohibit opening the computer.2. Remove all removable media, such as d

Replacing the Computer Access PanelAlign the tabs on the panel with the slots on the chassis (1) then slide the access panel all the way ontothe chass

Removing the Front Bezel1. Remove/disengage any security devices that prohibit opening the computer.2. Remove all removable media, such as diskettes o

© Copyright 2008 Hewlett-PackardDevelopment Company, L.P. Theinformation contained herein is subject tochange without notice.Microsoft, Windows, and W

Removing Bezel BlanksOn some models, there are bezel blanks covering the 3.5-inch and 5.25-inch external drive bays thatneed to be removed before inst

Replacing the Front BezelInsert the two hooks on the left side of the bezel into the rectangular holes on the chassis (1) then rotatethe right side of

Using the Small Form Factor Computer in a TowerOrientationThe Small Form Factor computer can be used in a tower orientation. The HP logo plate on the

11. Orient the computer so that its right side is facing down.Figure 2-9 Changing from Desktop to Tower OrientationNOTE: To stabilize the computer in

Installing Additional MemoryThe computer comes with double data rate 2 synchronous dynamic random access memory (DDR2-SDRAM) dual inline memory module

Populating DIMM SocketsThere are four DIMM sockets on the system board, with two sockets per channel. The sockets arelabeled DIMM1, DIMM2, DIMM3, and

and the remainder is assigned to single channel. For optimal speed, the channels should bebalanced so that the largest amount of memory is spread betw

8. Open both latches of the memory module socket (1), and insert the memory module into the socket(2).Figure 2-11 Installing a DIMMNOTE: A memory mod

Removing or Installing an Expansion CardThe computer has one PCI expansion slot, one PCI Express x1 expansion slot, one PCI Express x16expansion slot,

CAUTION: Regardless of the power-on state, voltage is always present on the system board aslong as the system is plugged into an active AC outlet. You

About This BookThis guide provides basic information for upgrading this computer model.WARNING! Text set off in this manner indicates that failure to

NOTE: Before removing an installed expansion card, disconnect any cables that may be attachedto the expansion card.a. If you are installing an expansi

c. If you are removing a PCI Express x16 card, pull the retention arm on the back of the expansionsocket away from the card and carefully rock the car

12. To install a new expansion card, hold the card just above the expansion socket on the systemboard then move the card toward the rear of the chassi

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 di

Installing and Removing DrivesWhen installing additional drives, follow these guidelines:●The primary Serial ATA (SATA) hard drive must be connected t

Figure 2-21 Extra Optical Drive M3 Guide Screws LocationCAUTION: To prevent loss of work and damage to the computer or drive:If you are inserting or

System Board Drive ConnectionsRefer to the following illustration and table to identify the system board drive connectors.Figure 2-22 System Board Dr

Removing an Optical DriveCAUTION: All removable media should be taken out of a drive before removing the drive from thecomputer.To remove an optical d

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 Cables9. Rotate

10. Press down on the green drive retainer button located on the left side of the drive to disengage thedrive from the drive cage (1). While pressing

iv About This Book ENWW

8. Install two M3 metric guide screws in the lower holes on each side of the drive. HP has providedfour extra M3 metric guide screws on the front of t

10. Rotate the drive cage to its upright position.Figure 2-29 Rotating the Drive Cage Up11. Connect the SATA data cable to the white system board con

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.Figu

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

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 13

3. Press the green drive retainer latch (1) located on the right side of the drive to disengage the drivefrom the drive cage. While pressing the drive

3. Position the guide screws on the drive into the J-slots in the drive bay. Then slide the drive towardthe front of the computer until it locks into

Removing and Replacing the Primary 3.5-inch Internal SATA Hard DriveNOTE: The system does not support Parallel ATA (PATA) hard drives.Before you remov

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

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 t

Table of contents1 Product FeaturesStandard Configuration Features ...

12. Align the guide screws with the slots on the chassis drive cage, press the hard drive down into thebay, then slide it back until it stops and lock

Removing and Replacing a Removable 3.5-inch SATA Hard DriveSome models are equipped with a Removable SATA Hard Drive Enclosure in the 5.25-inch extern

3. Remove the adhesive strip that secures the thermal sensor to the top of the hard drive (1) andmove the thermal sensor away from the carrier (2).Fig

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 Drive6. Place the

7. Replace the four screws in the bottom of the carrier to hold the drive securely in place.Figure 2-48 Replacing the Security Screws8. Place the the

9. Slide the cover on the carrier (1) and replace the screw on the rear of the carrier to secure the coverin place (2).Figure 2-50 Replacing the Carr

A SpecificationsTable A-1 SpecificationsDesktop Dimensions (in the desktop position)HeightWidthDepth3.95 in13.3 in14.9 in10.0 cm33.8 cm37.8 cmApproxi

Power Output 240 W 240 WRated Input Current (maximum)1Standard PS85% Efficient PS4A @ 100 VAC3.5A @ 100VAC2A @ 200 VAC1.75A @ 200VAC1This system utili

B Battery ReplacementThe battery that comes with the computer provides power to the real-time clock. When replacing thebattery, use a battery equivale

NOTE: On some computer models, it may be necessary to remove an internal component to gainaccess to the battery.8. Depending on the type of battery ho

Removing and Replacing the Primary 3.5-inch Internal SATA Hard Drive ... 41Removing and Replacing a Removable 3.5-inch SATA Hard

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 repl

C External Security DevicesNOTE: For information on data security features, refer to the Computer Setup (F10) Utility Guide, theDesktop Management Gui

PadlockFigure C-2 Installing a Padlock56 Appendix C External Security Devices ENWW

HP Business PC Security Lock1. Fasten the security cable by looping it around a stationary object.Figure C-3 Securing the Cable to a Fixed Object2. T

3. Screw the lock to the chassis using the screw provided.Figure C-5 Attaching the Lock to the Chassis4. Insert the plug end of the security cable in

Front Bezel SecurityThe front bezel can be locked in place by installing a security screw provided by HP.The security screw is located on the fan duct

D Electrostatic DischargeA discharge of static electricity from a finger or other conductor may damage system boards or otherstatic-sensitive devices.

E Computer Operating Guidelines,Routine Care and Shipping PreparationComputer Operating Guidelines and Routine CareFollow these guidelines to properly

Optical Drive PrecautionsBe sure to observe the following guidelines while operating or cleaning the optical drive.Operation●Do not move the drive dur

IndexAaccess panellocking and unlocking 9, 55audio connectors 2, 4Bbattery replacement 52Ccomputerspecifications 50computer access panelremoving 11r

1 Product FeaturesStandard Configuration FeaturesThe HP Compaq Small Form Factor features may vary depending on the model. For a complete listingof th

Rrear panel components 4removable hard drivereplacing 45removingbattery 52bezel blanks 14computer access panel 11diskette drive 36expansion card 22exp

Front Panel ComponentsDrive configuration may vary by model.Figure 1-2 Front Panel ComponentsTable 1-1 Front Panel Components1 5.25-inch Optical Dri

Media Card Reader ComponentsThe media card reader is an optional device available on some models only. Refer to the followingillustration and table to