Diagnostics tools 99
POST related troubleshooting
Perform the following procedures when POST fails to run, displays error messages, or emits beep
codes.
If the POST failure is during a routine boot up, check the following:
• All external cables and power cables should be firmly plugged in.
• The power outlet to which the server is connected and is working.
• The server and monitor are both turned on. The bicolor status LED indicator on the front panel
must be lit up green.
• The monitor's contrast and brightness settings are correct.
• All internal cables are properly connected and all boards are firmly seated.
• The processor is fully seated in its socket on the system board.
• The heat sink is properly installed on top of the processor.
• All memory modules are properly installed.
• If you have installed a PCI expansion board, verify that the board is firmly seated and any
switches or jumpers on the board are properly set. Refer to the documentation provided with the
expansion board.
• All system cables are securely connected and are in their proper order.
• If you have changed any switches on the system board, verify that each is properly set.
