IBM xSeries 236 8841, User Manual

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6. Move the password override switch (switch 2) from its upward position to its
lower position.
7. Replace any components that were removed.
8. Replace the cover.
You will be able to start the server one time, without having to use the
power-on password, and start the Configuration/Setup Utility program. 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.
9. Connect the server to a power source, keyboard, monitor, and mouse.
10. Turn on the server. The Configuration/Setup Utility program starts.
11. Follow the instructions to erase the existing password or create a new
password.
12. Select Save Settings and press Enter.
When the password reset is completed, you must move the password reset switch
back to its upward position.
Updating Remote Supervisor Adapter II SlimLine firmware
Information about updating the firmware of the Remote Supervisor Adapter II
SlimLine can be found in the Remote Supervisor Adapter II User’s Guide .
Power checkout
Power problems can be difficult to solve. For example, a short circuit can exist
anywhere on any of the power distribution buses. Usually a short circuit will cause
the power subsystem to shut down because of an overcurrent condition.
A general procedure for troubleshooting power problems is as follows:
1. Turn off the server and disconnect all ac power cords.
2. Check for loose cables in the power subsystem. Also check for short circuits, for
example, if there is a loose screw causing a short circuit on a circuit board.
3. Remove adapters and disconnect the cables and power connectors to all
internal and external devices until the server is at the minimum configuration
required to start the server (see “Minimum operating requirements” on page
140).
4. Reconnect all ac power cords and turn on the server. If the server starts up
successfully, replace adapters and devices one at a time until the problem is
isolated. If the server does not start up from the minimal configuration, replace
FRUs of minimal configuration one at a time until the problem is isolated.
To use this method, it is important to know the minimum configuration required for a
system to start (see page 140). For specific problems, see “Power-supply LED
errors” on page 116.
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xSeries 236 Type 8841: Hardware Maintenance Manual and Troubleshooting Guide