Table 4. States Under Host BIOS Control (continued)
Amber LED state White LED state System state Notes
modules detected but failure
has occurred.
3 1 BIOS state 4 BIOS Post code (Old LED
pattern 0100) Combine PCI
device config or failure with
video sub sytem config or
failure. BIOS to eliminate 0101
video code.
3 2 BIOS state 5 BIOS Post code (Old
LED pattern 0110) Combine
storage and USB config or
failure. BIOS to eliminate 0111
USB code.
3 3 BIOS state 6 BIOS Post code (Old LED
pattern 1000) MEM config, no
memory detected.
3 4 BIOS state 7 BIOS Post code (Old
LED pattern 1001) Fatal
Motherboard error.
3 5 BIOS state 8 BIOS Post code (Old LED
pattern 1010) Mem config,
modules incompatible or
invalid config.
3 6 BIOS state 9 BIOS Post code (Old
LED pattern 1011) combine
"Other pre-video activity and
resource configuration codes.
BIOS to eliminate 1100 code.
3 7 BIOS state 10 BIOS Post code (Old LED
pattern 1110) Other pre-post
activity, routine subsequent to
video init.
Power-Supply Unit Built-in Self-Test
Built-in Self-Test (BIST) helps determine if the power-supply unit is working. To run self-test diagnostics on the power-supply
unit of a desktop or all-in-one computer, see the knowledge base article 000125179 at www.dell.com/support.
Diagnostic error messages
Table 5. Diagnostic error messages
Error messages Description
AUXILIARY DEVICE FAILURE
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.
BAD COMMAND OR FILE NAME
Ensure that you have spelled the command correctly, put
spaces in the proper place, and used the correct path name.
CACHE DISABLED DUE TO FAILURE
The primary cache internal to the microprocessor has failed.
Contact Dell
68 Troubleshooting
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