Dell D16S, Service Manual

Page: 83 / 89

Running the SupportAssist Pre-Boot System Performance Check
Steps
1. Turn on your computer.
2. As the computer boots, press the F12 key as the Dell logo appears.
3. On the boot menu screen, select the
Diagnostics option.
4. Click the arrow at the bottom left corner.
Diagnostics front page is displayed.
5. Click the arrow in the lower-right corner to go to the page listing.
The items detected are listed.
6. To run a diagnostic test on a specific device, press Esc and click Yes to stop the diagnostic test.
7. Select the device from the left pane and click Run Tests .
8. If there are any issues, error codes are displayed.
Note the error code and validation number and contact Dell.
Diagnostic LED behavior
Table 9. Diagnostic LED behavior
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 (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 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 / 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.
Troubleshooting 83