IBM xSeries 236 8841, User Manual

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To update the firmware, use one of the following methods:
v If the Linux or Windows
®
operating-system update package is available from the
World Wide Web and you have obtained the applicable update package, follow
the instructions that come with the update package.
v
If you are using a diskette, complete the following steps:
1. Insert the firmware update diskette into the USB diskette drive and restart the
server.
2. Follow the instructions on the screen.
Resetting the BMC firmware
If the BMC code in the server becomes damaged, the server might have difficulty
restarting (rebooting). If the server does not turn on and the heartbeat LED (H8) on
the system board is not on, you will need to reset the BMC firmware. (See
“System-board LEDs” on page 83 for the location of the heartbeat LED.)
Complete the following steps to reset the BMC firmware:
1. Read Appendix B, “Safety information,” on page 153 and “Handling
static-sensitive devices” on page 12.
2. Turn off the server and all attached devices.
3. Disconnect the power cord; then, disconnect all external cables.
4. Remove the cover (see “Removing the left-side cover” on page 14).
4
3
2
1
3
2
1-2
Normal
2-3
Recovery
S 1 W
Boot block
recovery jumper (J5)
2 3 5 6
7
Password
override
1 8
Force
BMC
override
Force
power-on
SW2
NMI button
96
xSeries 236 Type 8841: Hardware Maintenance Manual and Troubleshooting Guide