NEC Express5800 Series Maintenance Manual page 46

Chapter 1 Maintenance
[?] POST error message or IML message of the processor is received

Be sure each processor is supported by the server and is installed as directed in User's Guide. The
processor socket requires very specific installation steps and only supported processors should be
installed.

Be sure the server ROM is current.

Be sure you are not mixing processor stepping, core speeds, or cache sizes if this is not supported on
the server.

If the server has only one processor installed, reseat the processor.

If the server has only one processor installed, replace it with a known functional processor.

If the server has multiple processors installed, test each processor:
1. Remove processor 2 from the server. Replace each with a processor terminator board or blank, if
applicable to the server.
2. Replace the remaining processor with a known functional processor. If the issue is resolved after you
restart the server, a fault exists with one or more of the original processors. Install each processor one
by one, restarting each time, to find the faulty processor or processors. At each step, be sure the
server supports the processor configurations.
[?] POST error message or IML message is received indicating an uncorrectable machine check exception

Replace the processor.
[?] Error message is received indicating low power or loss of power

Replace the battery.
[?] POST message or IML message is received indicating an issue with either the motherboard or the power
backplane

Check all error messages for possible issues with other components and troubleshoot components
identified.

Make sure that no loose connections exist on the motherboard or power backplane. It is not necessary
to reseat processors.

Remove any components recently added.

Using System Utility <F9>, set the system configuration back to the default value. To set the system
configuration back to the default value in case the system does not start, use Jumper Switch SW6.

Gather necessary information and contact your sales representative.
[?] System does not boot from the SD or microSD card

Be sure the drive boot order in the System Utility is set so that the server boots from the SD or microSD
card.

Use the iLO web interface to verify that the SD card is detected by LO.

Remove all power from the server. Reseat the SD or microSD card, and then power on the server.
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Express5800/R120h-1E, R120h-2E Maintenance Guide
5. Troubleshooting