Erasing A Lost Or Forgotten Password (Clearing Cmos) - IBM 8647 - Eserver xSeries 225 Maintenance And Troubleshooting Manual

15. Reinstall the side cover; then, reconnect all external cables and power cords
16. Turn on the server to restart the operating system.

Erasing a lost or forgotten password (clearing CMOS)

This section applies to lost or forgotten passwords. For more information about lost
or forgotten passwords, see "Passwords" on page 10
Complete the following steps to set the CMOS recovery jumper and erase a
forgotten password:
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IBM xSeries 225 Type 8647: Hardware Maintenance Manual and Troubleshooting Guide
and turn on the peripheral devices.
1. Review the safety information beginning on page 131
2. Turn off the server and all attached devices.
3. Unplug the power cord, and disconnect all external cables.
4. Remove the side cover and support bracket. (See "Removing the side cover"
on page 41 and "Removing the frame-support bracket" on page 43)
5. Locate the CMOS recovery jumper (JBAT1) 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.
Normal
Configure
Recovery
(no jumper)
6. Move the CMOS recovery jumper from pins 1 and 2 to pins 2 and 3.
7. Wait 60 seconds; then, return the CMOS recovery jumper to pins 1 and 2.
8. Replace any adapters that were removed; then, replace the frame-support
bracket and replace the side cover. (See "Removing the frame-support
bracket" on page 43 and "Installing the side cover" on page 71)
You can now start the server one time without having to use the power-on
password and start the Configuration/Setup Utility program. At this time, you
can either delete the old password or set a new power-on password. If you do
not change or delete the password, the next time you start the server the
original power-on password will be reinstated.
(J12)
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
Clear data