System-Diagnostic Lights - Dell Precision 5490 Owner's Manual

System-diagnostic lights

This section lists the system-diagnostic lights of your Precision 5490.
Table 53. System-diagnostic lights
Blinking pattern
Amber
1
1
1
1
1
1
1
2
2
2
2
2
White Problem description
1 TPM detection failure
2 Unrecoverable SPI Flash
3 Short in hinge cable tripped
4 Short in hinge cable tripped
5 EC unable to program i-Fuse
6
ungraceful EC code flow
7 Unsupported SPI Flash
1
2 System board failure (included
BIOS corruption or ROM
3 No memory or RAM detected ●
4 Memory or RAM failure
5 Invalid memory installed
Failure
OCP1
OCP2
Generic catch-all for
errors
CPU failure
error)
Suggested resolution
Replace the system board.
Replace the system board.
Check if the display cable
(EDP) is seated properly
or pinched at the hinges.
If problem persists, replace
either display cable (EDP) or
display assembly (LCD).
Check if the display cable
(EDP) is seated properly
or pinched at the hinges.
If problem persists, replace
either display cable (EDP) or
display assembly (LCD).
Replace the system board.
Disconnect all power source
(AC, battery, coin cell) and
drain flea power by pressing
and holding down the power
button for 3~5 seconds.
Replace the system board.
● Run the Dell SupportAssist
or Dell Diagnostics tool.
● If the problem persists,
replace the system board.
● Flash latest BIOS version
● If the problem persists,
replace the system board.
Confirm that the memory
module is installed
properly.
● If the problem persists,
replace the memory
module.
● Reset and swap memory
modules among the slots.
● If the problem persists,
replace the memory
module.
● Reset and swap memory
modules among the slots.
Troubleshooting 131