Replacement Battery - Compaq DESKPRO 2000 SERIES Maintenance & Service Manual

5.1.9

Replacement Battery

The real-time clock battery that came with the computer is nonreplaceable and is permanently installed
on the system board. Use Compaq replacement battery 160274-001 or a comparable 600-milliamp
alkaline, 4.5-volt battery.
It is important to make a set of backup diagnostics diskettes before you install a new battery.
If a non-Compaq hard drive is installed in the computer, it is important to take the following steps
before installing the battery.
1. Run the Computer Setup utility and observe the drive type that is displayed in the System
Configuration summary.
2. If the drive type number is 65 or 66, make a note of the drive parameters. You can view these
parameters by turning off the computer and then, restarting it, pressing F10 when the square cursor
appears in the upper-right corner of the screen. From the Compaq Utilities menu, select Computer
Setup. Select Storage, then select Configure Fixed Disk Drive to view the parameters. It is important
to record these parameters before continuing.
3. When you have completed the battery installation, run the Computer Setup utility to reconfigure the
system. Refer to Chapter 7, "Compaq Utilities."
To install the external real-time clock battery, complete the following steps:
1. Perform preparation procedures described in Section 5.1.3.
2. Remove the system unit cover (Section 5.1.6).
WARNING: The system board contains a clock/CMOS lithium battery. The lithium battery
!
may explode if mistreated. The battery is soldered in and may not be removed. Do not
abuse or disassemble. Use only replacement batteries supplied by Compaq Computer
Corporation (spare part number 160274-001).
5-16 Removal and Replacement Procedures