POST Codes

The table below contains descriptions of each of the POST codes, listed in the same order in which they are generated. These POST codes appear at the bottom right of the BIOS screen as a four-digit string that is a combination of two-digit output from primary I/O port 80 and two-digit output from secondary I/O port 81. In the POST codes listed below, the first two digits are from port 81 and the last two digits are from port 80.

You can see some of the POST codes from primary I/O port 80 on LEDs inside the front panel of your server node (see POST Code LEDs).

The Response column describes the action taken by the system on encountering the corresponding error. The actions are:

• Warning or Not an Error: The message appears on the screen. An error record is logged to the system event log (SEL) for a hardware component. The system continues booting with a degraded state. The user might want to replace the component.

• Pause: The message appears on the screen, an error is logged to the SEL, and user input is required to continue. The user can take immediate corrective action or choose to continue booting.

• Halt: The message appears on the screen, an error is logged to the SEL, and the system cannot boot unless the error is resolved. The user needs to replace the faulty part and restart the system.

Table 5 Error Messages and Responses