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Table 3. Error messages (continued)
Symptom or error
FRU or action, in sequence
Invalid system conguration data.
1. DIMM.
2. System board.
I/O device IRQ conict.
1. Load “Setup Defaults” in the BIOS Setup Utility.
2. Backup battery.
3. System board.
Hibernation error.
1. Restore the system conguration to what it was
before the computer entered hibernation mode.
2. If memory size has been changed, re-create the
hibernation le.
Fan error.
1. Fan.
2. Thermal grease.
3. System board.
Thermal sensing error.
System board.
Cannot boot from any device. Check the status of device which you want to boot
from.
Device not found.
1. The device you want to boot from.
2. System board.
Device Error.
1. The device you want to boot from.
2. System board.
No valid operating system.
1. Check that the operating system has no failure and is
installed correctly.
2. Reinstall the operation system.
Excluded from boot order.
• Enter the BIOS Setup Utility and add the device in boot
order.
Beep symptoms
Table 4. Beep symptoms
Symptom or error
FRU or action, in sequence
One beep and a blank, unreadable, or ashing LCD.
1. Reseat the LCD connector.
2. LCD assembly.
3. External CRT.
4. System board.
56 Hardware Maintenance Manual