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HP dx2420 manual Enww

Models: dx2420

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b.Insert the new battery and position the clip back into place. Figure B-3Removing a Coin Cell Battery (Type 3)

NOTE: After the battery has been replaced, use the following steps to complete this procedure.

8.Replace the computer access panel.

9.Plug in the computer and turn on power to the computer.

10.Reset the date and time, your passwords, and any special system setups using Computer Setup. Refer to the Computer Setup (F10) Utility Guide.

11.Lock any security devices that were disengaged when the access panel was removed.

44 Appendix B Battery Replacement

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HP dx2420 manual Enww

Contents

Hardware Reference Guide dx2420 Microtower Model Hardware Reference Guide About This Book Iv About This Book Table of contents Appendix D Electrostatic Discharge Product Features Standard Configuration FeaturesFront Panel Components 1Front Panel ComponentsMedia Card Reader Components 2Media Card Reader ComponentsRear Panel Components 3Rear Panel ComponentsKeyboard 4Keyboard ComponentsUsing the Windows Logo Key 5Windows Logo Key FunctionsSerial Number Location 6Serial Number and Product ID LocationHardware Upgrades Removing the Computer Access Panel 1Removing the Computer Access PanelReplacing the Computer Access Panel 2Replacing the Computer Access Panel Hardware UpgradesRemoving the Front Bezel 3Removing the Front BezelRemoving Bezel Blanks Replacing the Front Bezel 5Replacing the Front BezelDDR2-SDRAM DIMMs Installing Additional MemoryDIMMs Populating Dimm Sockets 1DIMM Socket LocationsInstalling DIMMs Enww Removing or Installing an Expansion Card 2Expansion Slot LocationsRemoving or Installing an Expansion Card 11Removing a Standard PCI Expansion Card Hardware Upgrades Enww Enww Drive Positions 15Drive PositionsInstalling Additional Drives 16Extra Drive Retainer Screws Location Hardware UpgradesInstalling Additional Drives System Board Drive Connections 3System Board Drive ConnectionsRemoving an Optical Drive 19Removing the Optical Drive Hardware Upgrades Installing an Optical Drive into the 5.25-inch Drive Bay 20Installing the Optical DriveRemoving an External 3.5-inch Drive Enww Installing a Drive into the 3.5-inch External Drive Bay 24Removing a 3.5-inch Device Media Card Reader ShownEnww Removing an Internal 3.5-inch Hard Drive Enww 30Removing the Hard Drive Hardware Upgrades Installing an Internal 3.5-inch Hard Drive 31Installing the Hard Drive in the Drive Cage33Installing the Hard Drive Cage Hardware Upgrades Enww Specifications Table A-1SpecificationsRated Input Current maximum Battery Replacement Type Enww Cable Lock Installing a Security LockExternal Security Devices Padlock HP Business PC Security LockEnww Enww Grounding Methods Electrostatic DischargePreventing Electrostatic Damage Computer Operating Guidelines and Routine Care Safety Optical Drive PrecautionsCleaning Shipping PreparationIndex Enww