User`s guide

8-16 Troubleshooting
No screen display appears with beep:
→ Check whether DIMMs are connected to the mating connectors firmly.
→ Check whether DIMMs of different specifications are installed in the specific bank. See Chapter 9 for the
specifications of DIMMs.
→ Take a note of beep code pattern, and take appropriate action according to the table listed earlier in "Beep
Codes".
POST fails to complete:
 Is the DIMM board installed?
→ At least two DIMM boards are required for operation.
→ DIMMs must be populated in correct order. See Chapter 4 for details.
→ Installed DIMMs must be the same speed and must all be registered.
 Is the memory size large?
→ The memory check may take a few seconds 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 devices?
→ Operation of the server with unauthorized devices is not guaranteed.