Automated Boot Recovery (Abr); Three Boot Failure; Solving Scsi Problems; Solving Power Problems - Lenovo TD200 - ThinkServer - 3809 Hardware Maintenance Manual

Automated boot recovery (ABR)

If the server is booting up and the IMM detects problems with the server firmware in the primary bank, it will
automatically switch to the backup firmware bank and give you the opportunity to recover the primary bank.
To recover to the server firmware primary bank, complete the following steps:
Step 1. Restart the server.
When the prompt press F3 to restore to primary is displayed, press F3 to recover the primary bank.
Step 2.
Pressing F3 will restart the server.

Three boot failure

Configuration changes, such as added devices or adapter firmware updates can cause the server to fail
POST (power-on self-test). If this occurs on three consecutive boot attempts, the server will temporarily uses
the default configuration values and automatically goes to F1 Setup. To solve the problem, complete the
following steps:
Step 1. Undo any configuration changes that you made recently and restart the server.
Step 2. Remove any devices that you added recently and restart the server.
Step 3. If the problem remains, go to the Setup utility and select Load Default Settings, and then click
Save to restore the server factory settings.

Solving SCSI problems

Note: This information also applies to Serial Attached SCSI (SAS) problems.
For any SCSI error message, one or more of the following devices might be causing the problem:
• A failing SCSI device (adapter, drive, or controller)
• An incorrect SCSI termination jumper setting
• A missing or incorrectly installed SCSI terminator
• A defective SCSI terminator
• An incorrectly installed cable
• A defective cable
For any SCSI error message, follow these suggested actions in the order in which they are listed until
the problem is solved:
1. Make sure that external SCSI devices are turned on before you turn on the server.
2. Make sure that the cables for all external SCSI devices are connected correctly.
3. If an external SCSI device is attached, make sure that the external SCSI termination is set to automatic.
4. Make sure that the last device in each SCSI chain is terminated correctly.
5. Make sure that the SCSI devices are configured correctly.

Solving power problems

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. To diagnose a power problem, use the following general procedure:
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ThinkServer TD200 Hardware Maintenance Manual