HP dc5750 manual Removing the Computer Access Panel

Page 16

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.

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.Push down on the button (1) to release the latch that secures the access panel to the computer chassis.

6.Slide the access panel back (2) about 1.3 cm (1/2 inch), then lift it off the unit.

Figure 2-2Removing the Computer Access Panel

10 Chapter 2 Hardware Upgrades

ENWW

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Contents Hardware Reference Guide dc5750 Small Form Factor Model Hardware Reference Guide About This Book Iv About This Book Table of contents Appendix D Electrostatic Discharge Product Features Standard Configuration FeaturesDrive configuration may vary by model Front Panel ComponentsRear Panel Components 2Rear Panel ComponentsKeyboard 3Keyboard ComponentsUsing the Windows Logo Key Special Mouse Functions Serial Number LocationHardware Upgrades Serviceability FeaturesUsing the Small Form Factor Computer in a Tower Orientation Using the Small Form Factor Computer in a Tower Orientation Removing the Computer Access Panel 2Removing the Computer Access Panel Hardware UpgradesReplacing the Computer Access Panel 3Replacing the Computer Access Panel4Removing the Front Bezel Hardware Upgrades Removing the Front BezelRemoving Bezel Blanks 5Removing a Bezel Blank Replace the front bezel6Replacing the Front Bezel Hardware Upgrades Replacing the Front BezelDIMMs Installing Additional MemoryDDR2-SDRAM DIMMs Populating Dimm Sockets Description Socket ColorInstalling DIMMs 9Rotating Optical Drive Retainer Up Hardware Upgrades Enww Removing or Installing an Expansion Card Description12Removing the Expansion Slot Retainer 13Removing an Expansion Slot Cover Hardware Upgrades 15Removing a PCI Express x16 Expansion Card 16Installing an Expansion Card Hardware Upgrades Replace the slot cover retainer Drive Positions 18Drive PositionsInstalling and Removing Drives Removing an Optical Drive 20Removing the Optical Drive 22Installing the Optical Drive Hardware Upgrades Enww 24Disconnecting the Diskette Drive Cables Hardware Upgrades Removing a Diskette Drive26Removing the Diskette Drive Enww 29Installing a Diskette Drive Enww Enww 32Disengaging the Diskette Drive Hardware Upgrades 34Disconnecting the Hard Drive Power Cable and Data Cable Enww Enww Enww Specifications Power Supply 115V 230VRated Input Current maximum1 Battery Replacement Type Figure B-2Removing and Replacing a Coin Cell Battery Type Enww External Security Devices Installing a Security LockCable Lock Padlock Preventing Electrostatic Damage Electrostatic DischargeGrounding Methods Appendix D Electrostatic Discharge Computer Operating Guidelines and Routine Care Optical Drive Precautions CleaningSafety Shipping PreparationIndex Enww

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