Recovering The Bios Code - IBM 88371RU Maintenance And Troubleshooting Manual

3. Disconnect the power cord; then, disconnect all external cables.
4. Remove the cover (see "Removing the cover" on page 18).
BIOS boot backup (J21)
Password reset (J22)
Force update BMC (J48)
Figure 64. Force update BMC jumper location
5. Locate the force update BMC jumper block (J48) on the system board,
6. Place a jumper on jumper on the force update BMC jumper block.
7. Replace any components that were removed.
8. Replace the cover.
9. Connect the server to a power source, keyboard, monitor, and mouse.
You will now be able to start the server. When you start the server, you must update
the BMC firmware code (see "Updating the BMC firmware" on page 76).
When the update is complete, repeat the previous procedure, removing the jumper
on jumper block J48.

Recovering the BIOS code

If power to the server is interrupted while POST/BIOS code is being updated (flash
update), the server might not restart (reboot) correctly or might not display video (no
video). If this happens, you will need a BIOS recovery diskette.
To create this diskette, download the BIOS recovery disk image from
http://www.ibm.com/support and follow the directions in the image's included
readme file.
Using the BIOS recovery diskette, complete the following steps to recover the BIOS
code:
removing any components that impede access to the jumper.
1. Read Appendix B, "Safety information," on page 129 and "Handling
static-sensitive devices" on page 16.
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 cover" on page 18).
5. Locate the BIOS boot backup jumper (J21) on the system board, removing any
components that impede access to the jumper.
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Chapter 5. Diagnostics