Replacing the SAN Volume Controller 2145-8A4 system-board CMOS battery

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

Consider the following notice when you replace the battery in the node:

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 replace the SAN Volume Controller 2145-8A4 system-board CMOS battery, perform the following steps:

Follow any special handling and installation instructions that come with the replacement battery.
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
Insert the new battery:
1. Orient the battery so that the positive side faces up.
2. Tilt the battery so that you can insert it into the socket on the side opposite the battery clip.
3. Press the battery down into the socket, as shown in Figure 2, until it clicks into place. Make sure that the battery clip holds the battery securely.
  Figure 2. Installing the SAN Volume Controller 2145-8A4 CMOS battery
Replace the riser-card assembly and ensure that it is fully seated in the connectors on the system board. See Replacing the PCI express riser-card assembly.
Replace the top cover. See Replacing the top cover.
Place the node in the rack. See Replacing the SAN Volume Controller in a rack.
Reconnect the external cables, and then reconnect the power cords and the node.
Note: You must wait approximately 20 seconds after you connect power to the node before the power-control button becomes active.
Turn on the node.
If there is a problem restarting the node, see MAP 5900: Hardware boot and then connect a monitor and keyboard to the system and reset the system date and time.