TX120 S3 Upgrade and Maintenance Manual 315
System board and components
14.1.2 Preliminary steps
Before replacing the CMOS battery, perform the following steps:
Ê Locate the defective server as described in section "Locating the defective
server" on page 50.
Ê Shut down the server as described in section "Shutting down the server" on
page 58.
Ê Disconnect the AC power cord from the system.
Ê Remove the server cover as described in section "Opening the server" on
page 61.
14.1.3 Removing the battery
Figure 185: Replacing the CMOS battery
Ê Press out on the locking spring to eject the depleted CMOS battery (1).
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