User Manual
Replacing FRUs 48
Replacing the coin-cell battery
Attention
Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
Your computer has a special type of memory that maintains the date, time, and settings for built-
in features, such as parallel connector assignments (congurations). A coin-cell battery keeps this
information active when you turn off the computer.
The coin-cell battery normally requires no charging or maintenance throughout its life; however, no
coin-cell battery lasts forever. If the coin-cell battery fails, the date, time, and conguration information
(including passwords) are lost. An error message is displayed when you turn on the computer.
To replace the coin-cell battery,
1
Remove the computer cover. For details, see Removing the computer cover and dust shield.
2
Remove the storage drive. For details, see Replacing the storage drive.
3
Remove the internal speaker. For details, see Replacing the internal speaker.
4
Remove the system fan. For details, see Replacing the system fan.
5
Remove the heat sink. For details, see Replacing the heat sink.
6
Replace the coin-cell battery.
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