LED information
■If your server is plugged into a UPS, make sure that the UPS is connected securely to an electrical outlet, turned on, and working correctly. One way to check this is to plug the server directly into a wall outlet, bypassing the UPS.
■Check the power supply modules on the back of the server. Make sure that the LEDs all indicate that the power supplies are working and the available AC power is good.
■Open your server and make sure that the power supply cables are connected correctly to the system board.
When you turn on the server, it makes several short beeps■The short beeps indicate the server has encountered some type of error. See “Beep codes” on page 199.
When you turn on the server, it turns off after a short time (with a fault light?)
■There may be a short on one of the boards due to a conductive item touching it. Check to make sure that a screw or other conductive item has not been dropped into the system.
■Check to make sure that all memory boards and processors are fully seated.
■Check the connections on all cables.
■Check to make sure that the IMM is fully seated.
■Check to make sure that there are no bent pins on the processors.
When you turn on the server, it does not complete POST■Check to make sure that all memory boards and processors are fully seated.
■Check the BIOS release notes to make sure that the BIOS supports the stepping and family of the installed processors.
■Check to make sure that you have populated the memory banks in the correct order and that you are using the correct type of memory. (See “Memory” on page 85)
■Check to make sure that there are no bent pins on the processors.
Processor
Your server does not recognize a new/additional processor■Make sure that the processor is fully seated in its socket and that the processor has no bent pins. The processor should be recognized automatically if it is installed correctly.
■If you have upgraded your server with an additional processor(s):
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