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Recovering from a POST/BIOS update failure
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 an IBM 326m System BIOS Crisis Recovery
Diskette. You can download a file to create this diskette from
http://www.ibm.com/support/. You will need an external diskette drive to create the
diskette. When you have created the diskette, use the following recovery procedure
using an external USB diskette drive:
10. The system will boot into a special recovery mode.
11. After the recovery completes, turn off the server, monitor, and peripheral
12. Disconnect all power cords and external cables; then, remove the cover.
13. Return the boot block recovery jumper to pins 1 and 2.
1. Read "Safety information" on page 107, "Handling static-sensitive devices" on
page 30, and "Installation guidelines" on page 29.
2. Turn off the server and all attached devices.
3. Unplug the power cord; then, disconnect all external cables.
4. Remove the cover (see "Removing the cover and bezel" on page 32.
5. Locate the boot block recovery jumper (JBBF1) on the system board.
6. Remove the boot block recovery jumper from pins 1 and 2; then, place the
boot block recovery jumper onto pins 2 and 3.
7. Insert the IBM System BIOS Crisis Recovery Diskette for your server into the
external USB floppy diskette drive A.
8. Replace the cover (see "Removing the cover and bezel" on page 32).
9. Connect the server to a power source, keyboard, monitor, and mouse.
Note: There may be several minutes of apparent inactivity during this process.
devices.
Boot block
recovery jumper (JBBF1)
Clear CMOS jumper (JBAT1)
Chapter 3. Diagnostics
25
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