NEC Express 5800/320Lc User Manual page 292

7-24 Troubleshooting
The screen turns blue during OS boot:
→ Wait for the period of time you set at BIOS [Boot Monitoring]; after the boot pair is
automatically swapped, the server will be rebooted and the OS will start up.
→
Start the OS from the other PCI module's hard disk.
Fail to power off the server:
Is the POWER switch enabled?
→ Restart the server and start the BIOS setup utility.
<Menu to check: [Security] → [Power Switch Mask] → [Unmasked]>
POST fails to complete:
Is the DIMM installed?
→ At least one DIMM is required for operation.
Is the memory size large?
→ The memory check may take a time if the memory size is large. Wait for a while.
Did you perform any keyboard or mouse operation immediately after you started the
server?
→ If you perform any keyboard or mouse operation immediately after start-up, POST
may accidentally detect a keyboard controller error and stops proceeding. In such
a case, restart the server once again. Do not perform any keyboard or mouse
operation until the BIOS start-up message appears when you restart the server.
Does the server have appropriate memory boards or PCI card?
→ Operation of the server with unauthorized devices is not guaranteed.