Upgrade Guide
19
Upgrading and Replacing Hardware
4. Slide the old power supply away from the rear of the chassis and
lift it out.
5. Insert the new power supply, ensuring that it has engaged
correctly.
6. Replace the three screws to secure the power supply and route the
cable carefully in the space provided at the front of the chassis.
7. Reconnect both internal power supply connectors.
8. Replace the chassis in the enclosure.
9. Select the correct voltage setting for your country.
Replacing the Battery
The battery that comes with your computer provides power to the
real-time clock and has a minimum lifetime of about three years.
When replacing the battery, use a battery equivalent to the battery
originally installed on your computer. Your computer comes with a
3-volt lithium coin cell battery.
✎
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.
Å
WARNING:
Your 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 Compaq spare designated for this
product.
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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. Refer to the
Computer Setup Guide
for
information on backing up the CMOS settings.
305513-001.book
Page
19
Tuesday,
August
20,
2002
4:35
PM