Acer Altos R920 Series, User Manual

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5 System troubleshooting 140
Specific problems and corrective actions
The following contains specific problems that may arise during the use
of your server. Possible solutions are listed for each problem.
Power indicator does not light.
Do the following:
• Make sure the power button on the front panel is turned on.
• Make sure the power cable is connected correctly.
• Make sure that the wall outlet has power. Test it by plugging
another device.
• Remove all non-hot-plug expansion cards and see if the system
boots. If successful, add the cards back in one at a time with a
reboot between each addition.
• Make sure the memory board and memory modules comply with
the system requirements.
• Make sure the memory modules have been populated according
to the system requirements.
• Remove and reseat the memory board.
• Remove and reseat the memory modules.
• Make sure the processor complies with the system requirements.
• Make sure the processor is populated according to the system
requirements.
• Remove and reseat the processor.
• Make sure the chassis standoffs are installed only below mounting
holes. Misplaced standoffs may have contact to the pins on the
bottom of the mainboard and cause a short.
Server powers on but turns off often with fault light.
Do the following:
• Make sure the memory boards are properly seated.
• Make sure the processor is properly seated.