Automatic boot failure 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.
1. Restart the server.
2. When the prompt
Press F3 to restore to primary
is displayed. Press F3 to
recover the primary bank. Pressing F3 will restart the server.
Nx boot failure
Configuration changes, such as added devices or adapter firmware updates, and
firmware or application code problems can cause the server to fail POST (the
power-on self-test). If this occurs, the server responds in either of the following
ways:
v
The server restarts automatically and attempts POST again.
v
The server hangs, and you must manually restart the server for the server to
attempt POST again.
After a specified number of consecutive attempts (automatic or manual), the Nx
boot failure feature causes the server to revert to the default UEFI configuration and
start the Setup utility so that you can make the necessary corrections to the
configuration and restart the server. If the server is unable to successfully complete
POST with the default configuration, there might be a problem with the system
board.
To specify the number of consecutive restart attempts that will trigger the Nx boot
failure feature, in the Setup utility, click
System Settings
→
Recovery
→
POST
Attempts
→
POST Attempts Limit
. The available options are 3, 6, 9, and 255
(disable Nx boot failure).
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IBM System x3630 M3 Type 7377: Problem Determination and Service Guide
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