ProLiant DL140 Generation 2 Server Maintenance and Service Guide

Diagnostic tools 55
POST-related troubleshooting
Perform the following procedures when POST fails to run or display error messages or emit beep codes.
If the POST failure is during a routine bootup, check the following:
• All external cables and power cables should be firmly plugged in.
• The power outlet to which the server is connected is working.
• The server and monitor are both turned on. The bicolor power 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 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.
• Verify that the all memory modules are properly installed.
If the POST failure occurs after installing an accessory, follow the steps below.
1. Remove the top cover according to the instructions described on page 14.
2. If necessary, remove any expansion boards, assemblies or cables that prevent access to the system
components.
3. Check the following:
• If you have installed a PCI expansion board, verify that the board is firmly seated in its slot and any
switches or jumpers on the board are properly set.
Refer to the documentation provided with the expansion board.
• All internal cabling and connections are in their proper order.
• If you have changed any switches on the system board, verify that each one is properly set.
4. Perform the post-installation procedure described on page 13.
5. Turn on the monitor.
6. If the server still does not work, repeat steps 1 and 2.
7. Remove all accessories, except the primary boot hard disk drive.
8. Repeat steps 4 and 5.
If the server now works, replace the boards and accessories one at a time to determine which one is causing the
problem.