Replacing the SAN Volume Controller 2145-CF8 system-board CMOS battery

This topic describes how to replace the system-board SAN Volume Controller 2145-CF8 CMOS battery.

DANGER

Multiple power cords. The product might be equipped with multiple power cords. To remove all hazardous voltages, disconnect all power cords.

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)

This service action assumes that:

The node is turned off.
The power cables are disconnected.
The battery is removed from the node.
The top cover is off.

Perform the following steps to replace the SAN Volume Controller 2145-CF8 system-board CMOS battery:

Follow any special handling and installation instructions that come with the replacement battery.
Locate the battery on the system board. Figure 1 shows the location ( 1 ) of the battery on the system board.
Figure 1. Location of the SAN Volume Controller 2145-CF8 CMOS battery holder
Insert the new battery:
1. Tilt the battery so that you can insert it into the socket on the side opposite the battery clip.
2. Press the battery across into the socket until it clicks into place. Make sure that the battery clip holds the battery securely, as shown in Figure 2.
  Figure 2. SAN Volume Controller 2145-CF8 CMOS battery holder
Make sure that all cables, adapters, and other components are installed and seated correctly and that you have not left loose tools or parts inside the node. Make sure that all internal cables are correctly routed. If you disconnected the fibre-channel and Ethernet cables, make sure that each cable is reconnected to the same port from which it was removed.
Replace the top cover. See Replacing the top cover.
If you removed the node from the rack, replace the node in the rack, as described in Replacing the SAN Volume Controller in a rack.
If you removed any fibre-channel or Ethernet cables, use the labels you placed on each cable to replace all fibre-channel and Ethernet cables in the same ports from which they were removed.
If you removed the power cords, replace the power cords and the cable-retention brackets, as described in Replacing the cable-retention bracket.
Lift the locking levers ( 1 in Figure 3) on the slide rails and push the server 2 all the way into the rack until it clicks into place.
Figure 3. Raising the SAN Volume Controller 2145-CF8 locking levers of the slide rails of the rack
Turn on the node.
If there is a problem restarting the node, see MAP 5900: Hardware boot; then connect a monitor and keyboard to the system and reset the BIOS date and time.