IBM 622138U - IntelliStation Z - Pro 6221, User Manual

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Complete the following steps to start the IBM Enhanced Diagnostics diskette:
1. Turn off any attached devices and your computer.
2. Insert the IBM Enhanced Diagnostics diskette into the diskette drive.
3. Turn on all attached devices; then, turn on your computer.
4. Follow the instructions on the screen.
When the tests have been completed, you can view the test log by selecting Utility
from the top of the screen.
Recovering from a POST/BIOS update failure
If power to your computer is interrupted while POST/BIOS code is being updated
(flash update), your computer might not restart (reboot) correctly. If this happens,
use the following procedure to recover:
1. Review the safety information beginning on page vii and “Handling
static-sensitive devices” on page 28.
2. Turn off the computer and all attached devices.
3. Unplug the power cord.
4. Remove the side cover and support bracket. (See “Removing the side cover”
on page 31 and “Removing and installing the support bracket” on page 33.)
5. Locate the boot block recovery jumper (J12) on the system board, removing
any adapters that impede access to the jumper. The following illustration
shows the location of the jumper on the system board.
1 2 3
1 2 3
1 2 3
1 2 3
1 2 3
CMOS recovery
jumper (JBAT1)
Boot block
recovery jumper
(J12)
Keep data
Normal
Clear data
Configure
Recovery
(no jumper)
(J12)
6. Remove the boot block recovery jumper from pins 1 and 2.
7. Replace any adapters that were removed; then, replace the support bracket
and replace the side cover. (See “Removing and installing the support bracket”
on page 33 and “Replacing the side cover” on page 53.)
8. Connect the computer to a power source, keyboard, monitor, and mouse.
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IBM IntelliStation Z Pro Type 6221: User’s Guide