Acer Altos R720 Series - Manual (Page 149)

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Server boot does not complete POST
Do the following:
• Make sure the CPU is properly seated.
• Check the BIOS release notes to ensure the BIOS installed on the
platform supports the stepping and the family of processors
currently installed.
Server does not recognize all of the processors installed
Do the following:
• Make sure the CPU is properly seated.
• Make sure the CPU complies with the system requirements.
• Make sure the CPU is populated according to the system
requirements.
• Remove and reseat the CPU.
FDD activity indicator does not light.
Do the following:
• Make sure the FDD and interposer board are properly connected.
• Check that relevant switches and jumpers for the FDD are set
correctly.
• Check that the FDD is properly configured.
HDD activity indicator does not light.
Do the following:
• Make sure the drive is not disabled in the BIOS setup utility.
• Make sure the drive is compatible.
• Make sure you have not exceeded the power budget for the
server.