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Error FRU/Action
The start-up drive is not in the boot sequence in
conguration.
Check the conguration and ensure the start-up drive is
in the boot sequence.
No operating system installed on the boot drive. Install an operating system on the boot drive.
The boot sector on the start-up drive is corrupted.
The drive must be formatted. Do the following:
1. Attempt to back up the data on the failing hard disk
drive.
2. Using the operating system programs, format the
hard disk drive.
The drive is defective.
Replace the hard disk drive.
Power Supply Problems
If you suspect a power problem, use the following procedures.
Check/Verify FRU/Action
Check the following for proper installation.
• Power cord
• On/Off switch connector
• On/Off switch power supply connector
• System board power supply connectors
• Microprocessor(s) connection
Reseat connectors
Check the power cord for continuity.
Power cord
Check the power-on switch for continuity.
Power-on switch
Beep symptoms
Beep symptoms are tones or a series of tones separated by pauses (intervals without sound) during POST.
The following tables describes beep symptoms.
Beep Symptom FRU/Action
2 short beeps CMOS setting error
Perform the following actions in order.
1. Start the Setup Utility program and press F10 to Save
and exit. See Chapter 8 “Conguring the server” on
page 77.
2. Start the Setup Utility program and press F7 to load
defaults and then press F10 to Save and exit.
3. Perform a Boot block recovery. See “Recovering
from a POST/UEFI update failure” on page 83.
1 long and 2 short beeps Monitor or video adapter card
error
Perform the following actions in order.
1. Make sure the monitor is properly connected to the
computer.
2. Replace the video adapter card (if present).
3. Replace the system board.
16 ThinkServerHardware Maintenance Manual