Battery - HP Pro 3330 Maintenance And Service Manual

NOTE: When replacing the system board, you must also change the chassis serial number in the
BIOS.
CAUTION:
of the heat sink with an alcohol pad supplied in the spares kit. After the alcohol has evaporated, apply
thermal grease to the top of the processor from the syringe supplied in the spares kit.
CAUTION:
interfere with the rotation of the drive cage or power supply.

Battery

The battery that comes with your computer provides power to the real-time clock and has a lifetime of
about three years. When replacing the battery, use a battery equivalent to the battery originally
installed on the computer. The computer comes with a 3-volt lithium coin cell battery.
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.
WARNING!
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 (140°F)
❑
Do not disassemble, crush, puncture, short external contacts, or dispose of in fire or water.
❑
Replace the battery only with the HP/Compaq spare designated for this product.
❑
CAUTION:
When the battery is removed or replaced, the CMOS settings will be cleared. Refer to the
Troubleshooting Without Diagnostics on page 150
settings.
NOTE: Batteries, battery packs, and accumulators should not be disposed of together with the
general household waste. In order to forward them to recycling or proper disposal, please use the
public collection system or return them to HP, its authorized partners, or its agents.
CAUTION:
equipment. Before beginning these procedures, ensure that you are discharged of static electricity by
briefly touching a grounded metal object.
1. Prepare the computer for disassembly
2. Remove the access panel
NOTE:
3. Locate the battery and battery holder on the system board.
4. To release the battery from its holder, squeeze the metal clamp that extends above one edge of
the battery. When the battery pops up, lift it out (1).
Before reinstalling the heat sink you must clean the top of the processor and the bottom
When reconnecting the cables it is important that they be positioned so they do not
This computer contains an internal lithium manganese dioxide battery. There is a risk of
Before replacing the battery, it is important to back up the computer CMOS settings.
Static electricity can damage the electronic components of the computer or optional
(Access Panel on page
It may be necessary to remove an expansion card to gain access to the battery.
chapter for information on backing up the CMOS
(Preparation for Disassembly on page
43).
42).
Battery 127