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Table 7. Diagnostic LED behavior(continued)
Blinking pattern
Amber
2
2
2
2
2
2
3
3
3
3
3
3
3
72
Troubleshooting
White
Problem description
1
2
System board failure (included
BIOS corruption or ROM error)
3
No memory/RAM detected
4
5
Invalid memory installed
6
System board / Chipset Error /
Clock failure / Gate A20
failure / Super I/O failure /
Keyboard controller failure
1
2
PCI or Video card/chip failure
3
BIOS Recovery image not found •
4
BIOS Recovery image found but
5
6
SBIOS Flash corruption
7
Intel ME (Management Engine)
CPU failure
Memory/RAM failure
CMOS battery failure
invalid
Power rail failure
Error
Suggested resolution
•
Run the Intel CPU
diagnostics tools.
•
If problem persists, replace
the system board.
•
Flash latest BIOS version
•
If problem persists, replace
the system board.
•
Confirm that the memory
module is installed properly.
•
If problem persists, replace
the memory module.
•
Reset the memory module.
•
If problem persists, replace
the memory module.
•
Reset the memory module.
•
If problem persists, replace
the memory module.
•
Flash latest BIOS version
•
If problem persists, replace
the system board.
•
Reset the CMOS battery
connection.
•
If problem persists, replace
the RTS battery.
Replace the system board.
Flash latest BIOS version
•
If problem persists, replace
the system board.
•
Flash latest BIOS version
•
If problem persists, replace
the system board.
•
EC ran into power
sequencing failure.
•
If problem persists, replace
the system board.
•
Flash corruption detected by
SBIOS
•
If problem persists, replace
the system board.
•
Timeout waiting on ME to
reply to HECI message
•
If problem persists, replace
the system board.
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