Troubleshooting 8-11No 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 group.See Chapter 9 for the specifications of DIMMs.→ DIMMs must be populated in pairs and in the following order:#5 and #6, #3 and #4, then #1 and #2.→ Installed DIMMs must be the same speed and must all be registered.→ Take a note of beep code pattern, and take appropriate action according to the tablelisted earlier in "Beep Codes".POST fails to complete:T Is the DIMM board installed?→ At least two DIMM boards are required for operation.→ Installed DIMMs must be the same speed and must all be registered.→ DIMMs must be populated in pairs and in the following order:#5 and #6, #3 and #4, then #1 and #2.T Is the memory size large?→ The memory check may take a few seconds if the memory size is large. Wait fora while.T Did you perform any keyboard or mouse operation immediately after you started theserver?→ If you perform any keyboard or mouse operation immediately after start-up, POSTmay accidentally detect a keyboard controller error and stops proceeding. Insuch a case, restart the server once again. Do not perform any keyboard ormouse operation until the BIOS start-up message appears when you restart theserver.T Does the server have contains appropriate memory boards or PCI devices?→ Operation of the server with unauthorized devices is not guaranteed.