Service Manual

Diagnostic LED behavior
Table 22. Diagnostic LED behavior
Blinking pattern
Problem description Suggested resolutionAmber 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 &
holding down power button.
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.
2 4 Memory/RAM failure
● Reset and swap memory
modules amongst the
slots.
● If problem persists,
replace the memory
module.
2 5 Invalid memory installed
● Reset and swap memory
modules amongst the
slots.
● If problem persists,
replace the memory
module.
2 6 System board/Chipset Error
Replace the system board.
2 7 LCD failure (SBIOS message)
Replace the LCD module.
2 8 LCD failure (EC detection of
power rail failure)
Replace the system board.
3 1 CMOS battery failure
● Reset the CMOS battery
connection.
● If problem persists,
replace the RTS battery.
3 2 PCI or Video card/chip failure
Replace the system board.
112 Troubleshooting