IBM IntelliStation M Pro 6218, Problem Determination And Service Manual

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Recovering from a BIOS update failure
If power to the computer is interrupted while BIOS code is being updated, the
computer might not restart correctly or might not display video. If this happens,
complete the following steps to recover:
1. Read the safety information that begins on page vii and “Handling
static-sensitive devices” on page 74.
2. Turn off the computer and all attached devices.
3. Disconnect the power cord.
4. Remove the cover and hard disk drive bracket (if one is installed).
5. Locate the boot block recovery jumper (J1) on the system board (see
Figure 8), removing any adapters that impede access to the jumper.
6. Remove the boot block recovery jumper from pins 1 and 2.
7. Replace any adapters that were removed; then, replace the hard disk drive
bracket (if one was removed) and the cover.
8. Connect the computer to a power source, keyboard, monitor, and mouse.
9. Insert the update CD into the CD or DVD drive.
10. Turn on the computer and the monitor.
After the update session is completed, remove the CD from the drive and turn
off the computer.
Boot Block Jumper (J1)
Recover
(no jumper)
Default
(pins 1 and 2))
3 2 1 3 2 1
Clear CMOS Jumper (JBAT1)
Recover Default
3 2 1 3 2 1
IEEE 1394 ( FireWire )
enable / disable jumper
Disable Default
3 2 1 3 2 1
Figure 8. Recovery jumper locations
Chapter 2. Diagnostics
55