Configuration changes, such as added devices or adapter
firmware updates, and firmware or application code problems can cause
the compute node to fail the power-on self-test (POST).
If the compute node fails POST, it responds in either
of the following ways:
- The compute node restarts automatically and attempts POST again.
- The compute node hangs and you must manually restart the compute
node for the compute node to attempt POST again.
After a specified number of consecutive attempts (automatic or
manual), the Nx boot failure feature causes the compute node 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 compute node. If the compute node 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 . The available options are 3, 6, 9 and Disable.