
Amber LED state
White LED state
System state
Notes
process. Appropriate mem
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.
Diagnostic error messages
Table 22. 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
CD DRIVE CONTROLLER FAILURE
The optical drive does not respond to commands from the
computer.
DATA ERROR
The hard drive cannot read the data.
DECREASING AVAILABLE MEMORY
One or more memory modules may be faulty or improperly seated.
Reinstall the memory modules or, if necessary, replace them.
DISK C: FAILED INITIALIZATION
The hard drive failed initialization. Run the hard drive tests in
Dell
Diagnostics
.
88
Troubleshooting
Summary of Contents for D28M
Page 1: ...OptiPlex 7071 Tower Service Manual Regulatory Model D28M Regulatory Type D28M001 ...
Page 41: ...Disassembly and reassembly 41 ...
Page 43: ...Disassembly and reassembly 43 ...
Page 60: ...60 Disassembly and reassembly ...
Page 61: ...Disassembly and reassembly 61 ...
Page 63: ...Disassembly and reassembly 63 ...
Page 64: ...64 Disassembly and reassembly ...
Page 65: ...Disassembly and reassembly 65 ...
Page 83: ...5 Click Begin Flash Update and then a warning message is displayed System setup 83 ...
Page 84: ...6 Click Yes The systems restarts automatically and starts BIOS Flash 84 System setup ...