Technical data

FRU Replacement
5-52
Replacing the Real Time Clock (RTC) Battery
The server’s battery runs the server clock and retains any setup information when it
is turned off. If the server ever fails to retain the correct date, time, or configuration
settings when it is turned on, you need to replace the server’s RTC battery. Also,
make sure you replace the battery with either a DIGITAL part number 12-41474-05,
Toshiba (P/N CR2032), or equivalent 3 V dc Lithium battery.
WARNING:
There is a danger of battery explosion if a lithium
battery is incorrectly replaced. To prevent damage to the server, be
sure the + side faces up when installing a new battery.
Depending on your locality, the server’s battery might be considered
hazardous waste. Make sure you follow any state or local statute to
properly dispose of the old battery.
To replace the battery/RTC, perform the following:
1. If you have not already done so, record server configuration settings using
the BIOS Setup utility.
2. Turn off the server.
3. Disconnect external devices (if any), ac power, and monitor power.
4. Unlock and remove the left side panel.
5. Lift the retaining clip slightly and push on the battery from the side to slide it
out (see Figure 5-25).
6. Install the new battery/RTC (Figure 5-25). When installing the new battery,
make sure the “+” side faces up.
7. Replace and lock the left side panel.
8. Connect external devices and restore power.