Removing the SAN Volume Controller 2145-8A4 CMOS battery

This topic describes how to remove the SAN Volume Controller 2145-8A4 CMOS battery.

CAUTION:

The battery contains lithium. To avoid possible explosion, do not burn or charge the battery.

Do not:

Throw or immerse into water
Heat to more than 100°C (212°F)
Repair or disassemble

Exchange only with the IBM-approved part. Recycle or discard the battery as instructed by local regulations. In the United States, IBM has a process for the collection of this battery. For information, call 1-800-426-4333. Have the IBM part number for the battery unit available when you call. (C003)

To remove the CMOS battery, perform the following steps:

Read the safety precautions in Safety and environmental notices.
Turn off the node while ensuring that its data is mirrored and synchronized. See MAP 5350: Powering off a SAN Volume Controller node for more information.
Remove the node from the rack and place it on a flat, static-protective surface. See Removing the SAN Volume Controller from a rack.
Remove the top cover. See Removing the top cover.
Lift the riser-card assembly out of the way. You do not need to separate the riser-card assembly and the fibre-channel adapter. See Removing the PCI express riser card assembly.
Locate the battery on the system board.
1 in Figure 1 shows the location of the battery.
Figure 1. Locating the SAN Volume Controller 2145-8A4 CMOS battery
Remove the CMOS battery, as shown in Figure 2:
Figure 2. Removing the SAN Volume Controller 2145-8A4 CMOS battery
1. Use a fingernail to press the top of the battery clip away from the battery. The battery pops up when released.
2. Use your thumb and index finger to lift the battery from the socket.