HP DL360 Reference And Troubleshooting Manual page 110

110 HP ProLiant DL360 Generation 4 Server Reference and Troubleshooting Guide
Unknown Problem
Action:
1. Disconnect power to the server.
2. Following the guidelines and cautionary information in the server
documentation, strip the server to its most basic configuration by removing
every card or device that is not necessary to start the server. Keep the
monitor connected to view the server startup process.
3. Reconnect power, and then power the system on.
Third-Party Device Problems
Action:
1. Refer to the server and operating system documentation to be sure the server
and operating system support the device.
2. Be sure the latest device drivers ("Maintaining Current Drivers" on page 141)
are installed.
If the video does not work, refer to "Video Problems (on page 126)."
CAUTION: Only authorized technicians trained by HP should
attempt to remove the system board. If you believe the system board
requires replacement, contact HP Technical Support before proceeding.
If the system fails in this minimum configuration, one of the primary
components has failed. If you have already verified that the processor,
PPM, power supply, and memory are working before getting to this
point, replace the system board. If not, be sure each of those components
is working.
If the system boots and video is working, add each component back to
the server one at a time, restarting the server after each component is
added to determine if that component is the cause of the problem. When
adding each component back to the server, be sure to disconnect power
to the server and follow the guidelines and cautionary information in the
server documentation.