Indicates the status of the power-supply in either of the two sates:
Off: No Power
On: Power is supplied.
Power button light
Table 1. Power button LED status
Power button LED state
System state
Description
Off
S4
S5
There is in Hibernate or Off state.
Solid White
S0
Working state
Solid Amber
Various sleep states or No POST
Blinking Amber/White
Failure to POST
This platform relies on the Power button LED light blinking in an amber/white pattern to determine a failure as listed in the following table:
NOTE:
The blinking patterns consists of two numbers (representing First Group: Amber blinks, Second Group: White blinks).
First Group: The Power button LED light blinks Amber, 1 to 9 times followed by a short pause with LED off for a couple of seconds.
Second Group: The Power button LED light then blinks White, 1 to 9 times, followed by a longer pause before the next cycle starts again after a short interval.
.
Example: No Memory detected (2,3). Power button LED blinks 2-times in Amber followed by a pause, and then blinks 3-times in White. The Power button LED will pause for few seconds before the next cycle repeats itself again.
Table 2. Diagnostic LED statusLED light codes for component issues or failure in the product.
Blinking pattern
Problem description
Suggested resolution
Amber
White
1
2
Unrecoverable SPI flash failure
2
1
CPU failure
Run the Intel CPU diagnostics tools.
If problem persists, replace the system board.
2
2
System board failure (including BIOS corruption or ROM error)
Flash latest BIOS version.
If problem persists, replace the system board.
2
3
No memory/RAM detected
Confirm that the memory module is installed properly.
If problem persists, replace the memory module.
2
4
Memory/RAM failure
Reset the memory module.
If problem persists, replace the memory module.
2
5
Invalid Memory installed
Reset the memory module.
If problem persists, replace the memory module.
2
6
System board error, chipset error, clock failure, gate A20 failure, super I/O failure, keyboard controller failure
Flash latest BIOS version.
If problem persists, replace the system board.
3
1
CMOS battery failure
Reset the CMOS battery connection.
If problem persists, replace the RTS battery.
3
2
PCIe or video card/chip failure
Replace the system board.
3
3
BIOS recovery image not found
Flash latest BIOS version.
If problem persists, replace the system board.
3
4
BIOS recovery image found but invalid
Flash latest BIOS version.
If problem persists, replace the system board.
3
5
Power Rail Failure
EC ran into power sequencing failure.
If problem persists, replace the system board.
3
6
Paid SPI volume error
Flash corruption detected by SBIOS.
If problem persists, replace the system board.
3
7
Intel ME (Management Engine) error
Timeout waiting on ME to reply to HECI message.
If problem persists, replace the system board.
4
2
CPU power cable connection issue
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