8 Repeat Step 4 and Step 8
Identifier GUID-070138BF-4BC1-41DD-A101-628B1FD7A126
Status Released
Diagnostics
The computer POST (Power On Self Test) ensures that it meets the basic computer requirements and the hardware is working
appropriately before the boot process begins. If the computer passes the POST, the computer continues to start in a normal mode.
However, if the computer fails the POST, the computer emits a series of LED codes during the start-up. The system LED is integrated on
the Power button.
The following table shows dierent light patterns and what they indicate.
Table 3. Diagnostics
Number of LED ashes Problem description
2 amber, 1 amber Motherboard failure
2 amber, 2 amber Motherboard, PSU or PSU Cabling failure
2 amber, 3 amber Motherboard, Memory or CPU failure
2 amber, 4 amber CMOS battery failure
Identifier GUID-B3EA98F2-FAAA-4A7A-8F01-3B7B24F4EC26
Status Released
Diagnostic error messages
Table 4. 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.
DRIVE NOT READY
The operation requires a hard drive in the bay before it can
continue. Install a hard drive in the hard drive bay.
64 Troubleshooting
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