Technical data

Server Components
3-21
Replacing the Real Time Clock (RTC) Battery
Your server’s battery runs the server Real Time Clock (RTC) and retains any setup
information when it is turned off. If your server ever fails to retain the correct date,
time, or configuration settings when it is turned on, you need to replace your 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.
This part can be obtained through your DIGITAL service provider.
WARNING:
There is a danger of battery explosion if a lithium
battery is incorrectly replaced. To prevent damage to your
server, be sure the + side faces up when installing a new
battery.
Depending on your locality, your 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 your 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 3-12).
6. Install the new battery/RTC (Figure 3-12). 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.