HP Pro 6305 manual Battery Replacement

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A 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.

Do not expose to temperatures higher than 60°C (140ºF).

Do not disassemble, crush, puncture, short external contacts, or dispose of in fire or water.

Replace the battery only with the HP spare designated for this product.

CAUTION: Before replacing the battery, it is important to back up the computer CMOS settings. When the battery is removed or replaced, the CMOS settings will be cleared.

Static electricity can damage the electronic components of the computer or optional equipment. Before beginning these procedures, ensure that you are discharged of static electricity by briefly touching a grounded metal object.

NOTE: The lifetime of the lithium battery can be extended by plugging the computer into a live AC wall socket. The lithium battery is only used when the computer is NOT connected to AC power.

HP encourages customers to recycle used electronic hardware, HP original print cartridges, and rechargeable batteries. For more information about recycling programs, go to http://www.hp.com/ recycle.

1.Remove/disengage any security devices that prohibit opening the computer.

2.Remove all removable media, such as compact discs or USB flash drives, 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.Remove the computer access panel.

6.Locate the battery and battery holder on the system board.

NOTE: On some computer models, it may be necessary to remove an internal component to gain access to the battery.

82 Appendix A Battery Replacement

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Contents Hardware Reference Guide Hardware Reference Guide About This Book Iv About This Book Table of contents Small Form Factor SFF Hardware Upgrades Preventing Electrostatic Damage Grounding Methods Viii Product Features Standard Configuration FeaturesMicrotower MT Front Panel Components 1Front Panel ComponentsSmall Form Factor SFF Front Panel Components 2Front Panel ComponentsMicrotower MT Rear Panel Components 3Rear Panel ComponentsSmall Form Factor SFF Rear Panel Components 4Rear Panel ComponentsMedia Card Reader Components 5Media Card Reader Components6Keyboard Features KeyboardUsing the Windows Logo Key 7Windows Logo Key FunctionsAny number key Serial Number Location 8Microtower Serial Number and Product ID LocationMicrotower MT Hardware Upgrades Serviceability FeaturesRemoving the Computer Access Panel Replacing the Computer Access Panel Removing the Front Bezel Removing Bezel Blanks Replacing the Front BezelSystem Board Connections 1System Board ConnectionsInstalling Additional Memory DIMMsDDR3-SDRAM DIMMs Installing DIMMs Populating Dimm SocketsPage Removing or Installing an Expansion Card Page Page Page Drive Positions 2Drive PositionsInstalling and Removing Drives Media16Extra Guide Screw Locations Removing a 5.25-inch or 3.5-inch Drive from a Drive Bay 19Removing the Drives Microtower MT Hardware Upgrades Installing a 5.25-inch or 3.5-inch Drive into a Drive Bay Page Page Removing a Hard Drive from a Drive Bay Installing a Hard Drive into an Internal Drive Bay Page Page Page Installing a Security Lock Cable LockPadlock HP Business PC Security Lock Page Page Page Front Bezel Security Page Small Form Factor SFF Hardware Upgrades Removing the Computer Access Panel Replacing the Computer Access Panel Removing the Front Bezel 4Removing a Bezel Blank Changing from Desktop to Tower Configuration Black ESATA Adapter Cable Sata Installing Additional Memory Installing DIMMs 8Rotating the Drive Cage Up Installing Additional Memory Page Removing or Installing an Expansion Card Page Page Page 16Drive Positions 17Extra Guide Screw Locations Page Removing a 5.25-inch Drive from a Drive Bay Page Installing a 5.25-inch Drive into a Drive Bay 21Removing the 5.25-inch DrivePage Page Removing a 3.5-inch Drive from a Drive Bay Page Installing a 3.5-inch Drive into a Drive Bay Page Page Page Page Page 40Installing a Cable Lock HP Business PC Security Lock Page Page Page Front Bezel Security Page Battery Replacement Type Page Removing and Replacing a Removable 3.5-inch Sata Hard Drive Page Figure B-5Replacing the Hard Drive Page Page Unlocking the Smart Cover Lock Smart Cover FailSafe KeyPage Page Preventing Electrostatic Damage Grounding MethodsComputer Operating Guidelines and Routine Care Safety Optical Drive PrecautionsCleaning Shipping PreparationIndex Tower conversion
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