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Table 19. Diagnostic LED behavior (continued)
Blinking pattern
Amber
2
2
2
2
3
3
3
3
3
3
3
4
Recovering the operating system
When your computer is unable to boot to the operating system even after repeated attempts, it automatically starts Dell
SupportAssist OS Recovery.
White
Problem description
3
No memory/RAM detected
4
Memory/RAM failure
5
Invalid memory installed
6
System board / Chipset
Error / Clock failure / Gate
A20 failure / Super I/O
failure / Keyboard controller
1
CMOS battery failure
2
PCI or Video card/chip failure
3
BIOS Recovery image not
4
BIOS Recovery image found
5
6
SBIOS Flash corruption
7
Intel ME (Management
2
CPU Power Cable Connection
failure
found
but invalid
Power rail failure
Engine) Error
Issue
Suggested resolution
●
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.
Troubleshooting
93
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