IBM xSeries 235, Maintenance & Troubleshooting

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For further information on battery disposal, call IBM at 1-800-IBM-4333
(1-800-426-4333) in the U.S. For information outside of the U.S., contact an IBM
reseller or marketing representative.
Complete the following steps to replace the battery:
1. Review the information in “Installation guidelines” on page 41, “Handling
static-sensitive devices” on page 42, and “Safety information” on page 163.
2. Follow any special handling and installation instructions supplied with the
battery.
3. Turn off the server (see “Turning off the server” on page 9) and all attached
devices and disconnect all power cords and external cables; then, remove the
server cover (see “Removing the server left-side cover and bezel (tower
model)” on page 51 or “Removing the server top cover and bezel (rack
configuration)” on page 53).
4. Lift the adapter-retention bracket on top of the adapter-support bracket; then,
remove the full-length adapters and plastic dividers (see “Working with
adapters” on page 56).
5. Locate the battery (connector BH1) on the system board.
DIMM 1 (J7)
DIMM 2 (J9)
DIMM 3 (J11)
DIMM 4 (J12)
DIMM 5 (J14)
DIMM 6 (J15)
Battery (BH1)
VRM 2 (J1)
Microprocessor 2
(U9)
Microprocessor 1
(U13)
VRM 1 (J17)
Remote Supervisor
Adapter (J27)
PCI slot 1 32-bit 5.0 V
(J32)
PCI-X slot 2 64-bit 3.3 V
(J36)
PCI-X slot 3 64-bit 3.3 V
(J38)
PCI-X slot 4 64-bit 3.3 V
(J41)
PCI-X slot 5 64-bit 3 V
133 MHz hot-plug (J43)
PCI-X slot 6 64-bit 3 V
133 MHz hot-plug (J45)
6. Remove the battery:
a. Use one finger to press the top of the battery clip away from the battery
until the battery releases upward from the socket.
b. Lift and remove the battery from the socket.
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xSeries 235 Type 8671: Hardware Maintenance Manual and Troubleshooting Guide