●
Off: No Power
●
On: Power is supplied.
Power button light
Table 21. 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 22. System-diagnostic lights
Blinking pattern
Problem description
Suggested resolution
Amber
White
1
1
TPM detection failure
Replace the system board.
1
2
Unrecoverable SPI Flash
Failure
Replace the system board.
1
5
EC unable to program i-Fuse
Replace the system board.
1
6
Generic catch-all for
ungraceful EC code flow
errors
Disconnect all power source
(AC, battery, coin cell) and
drain flea power by pressing
and holding down power
button for 3~5 seconds.
2
1
CPU failure
●
Run the Dell Support
Assist/Dell Diagnostics
tool.
●
If problem persists,
replace the system board.
2
2
System board failure (included
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.
Troubleshooting
115
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