Diagnostic Error Messages - Dell XPS 8940 Service Manual

For example, the power and battery-status light blinks amber two times followed by a pause, and then blinks white three times followed by
a pause. This 2,3 pattern continues until the computer is turned off indicating no memory or RAM is detected.
The following table shows different power and battery-status light patterns and associated problems.
Table 15. LED codes
Diagnostic light codes
1,2
2,1
2,2
2,3
2,4
2,5
2,6
3,1
3,2
3,3
3,4
3,5
3,6
3,7
4,2
Camera status light: Indicates whether the camera is in use.
• Solid white — Camera is in use.
• Off — Camera is not in use.
Caps Lock status light: Indicates whether Caps Lock is enabled or disabled.
• Solid white — Caps Lock enabled.
• Off — Caps Lock disabled.

Diagnostic error messages

Table 16. Diagnostic error messages
Error messages
AUXILIARY DEVICE FAILURE
BAD COMMAND OR FILE NAME
68 Troubleshooting
Problem description
TPM detection failure
Processor failure
System board: BIOS or Read-Only Memory
(ROM) failure
No memory or Random-Access Memory
(RAM) detected
Memory or Random-Access Memory (RAM)
failure
Invalid memory installed
System-board or chipset error
Coin-cell battery failure
PCI, video card/chip failure
Recovery image not found
Recovery image found but invalid
Power-rail failure
System BIOS Flash incomplete
Management Engine (ME) error
Power rail failure
Recommended solutions
Replace system board.
Run the Intel CPU diagnostics tools. If problem persists,
replace the system board.
Flash latest BIOS version. If problem persists, replace the
system board.
Confirm that the memory module is installed properly. If
problem persists, replace the memory module.
Reset and swap memory modules amongst the slots. If
problem persists, replace the memory module.
Reset and swap memory modules among the slots. If
problem persists, replace the memory module.
Flash latest BIOS version. If problem persists, replace the
system board.
Reset the CMOS battery connection. If problem persists,
replace the RTC battery.
Replace the system board.
Flash latest BIOS version. If problem persists, replace the
system board.
Flash latest BIOS version. If problem persists, replace the
system board.
EC ran into power sequencing failure. If problem persists,
replace the system board.
Flash corruption detected by SBIOS. If problem persists,
replace the system board.
Timeout waiting on ME to reply to HECI message. If
problem persists, replace the system board.
Update BIOS screen.
Description
The touchpad or external mouse may be faulty. For an external
mouse, check the cable connection. Enable the Pointing Device
option in the System Setup program.
Ensure that you have spelled the command correctly, put spaces in
the proper place, and used the correct path name.