NOTE: If the hard drive is in the Advanced Host Controller Interface (AHCI) mode, the status LED indicator does not
turn on.
NOTE: Drive status indicator behavior is managed by Storage Spaces Direct. Not all drive status indicators may be used.
Table 21. Hard drive indicator codes
Hard drive status indicator code Condition
Flashes green twice per second Identifying drive or preparing for removal.
Off Drive ready for removal.
NOTE: The drive status indicator remains off until all drives
are initialized after the system is turned on. Drives are not
ready for removal during this time.
Flashes green, amber, and then turns off Predicted drive failure.
Flashes amber four times per second Drive failed.
Flashes green slowly Drive rebuilding.
Solid green Drive online.
Flashes green for three seconds, amber for three seconds,
and then turns off after six seconds
Rebuild stopped.
Preboot blinking power button codes
Table 22. Power button LED state
Power Button LED State Description
Off Power is Off. LED is blank.
Blinking Amber Initial State of LED at power up. See the table below for Blinking
Amber pattern diagnostic suggestions and possible failures.
Blinking White System is in a low power state, either S1 or S3. This does not
indicate a fault condition.
Solid Amber The second state of the LED at power up, indicates that the
POWER_GOOD signal is active and it is probable that the power
supply is fine.
Solid White System is in S0 state. This is the normal power states of a
functioning machine. The BIOS will turn the LED to this states to
indicate it has started fetching op-codes.
Table 23. Diagnostic Indicator table
Power Light: Amber-White
Blinking
Amber/White Blinking
Pattern
Problem Description Suggested Resolution
1-1 1 amber blink followed by a short
pause, 1 white blink, long pause,
then repeats
Faulty System board
To troubleshoot the issue with
system board, contact Tech
support.
1-2 1 amber blink followed by a short
pause, 2 white blinks, long
pause, then repeats
Bad system board, Power
Supply or Power Supply cabling
• If you can assist to
troubleshoot, narrow down
the issue with PSU BIST
Test, reseat cable.
• If nothing works, contact
Tech Support
Troubleshooting 127
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