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Advanced Troubleshooting: Dell Dimension E520 Service Manual
Slave DMA register failure
Master DMA register failure
Master interrupt mask register failure
Slave interrupt mask register failure
Interrupt vector loading failure
Keyboard Controller Test failure
NVRAM power loss
NVRAM configuration
Video Memory Test failure
Screen initialization failure
Screen retrace failure
Search for video ROM failure
No time tick
Shutdown failure
Gate A20 failure
Unexpected interrupt in protected mode
Serial or parallel port test failure
Cache test failure
System Messages
NOTE: If the message you received is not listed in the table, see the documentation for either the operating system or the program that was running when the message appeared.
Message
8042 Gate-
A20 error
Address Line Short!
Possible Cause
The keyboard controller failed its test.
An error in the address decoding circuitry in the memory has occurred.
Corrective Action
If you receive this message after you make changes in the system setup program, enter the system setup program (see Entering System Setup) and restore the original value(s).
Reseat the memory modules (see Memory).
C:Drive Error
C:Drive
Failure
Cache
Memory Bad,
Do Not
Enable
Cache
Error
The hard drive is not working or is not configured correctly.
The cache memory is not operating.
An error is occurring on the timer on the system board.
Ensure that the drive is installed correctly in the computer and defined correctly in the system setup program (see Entering System Setup).
See "Contacting Dell" in your Owner's Manual for instructions on obtaining technical assistance.
See "Contacting Dell" in your Owner's Manual for instructions on obtaining technical assistance.
CMOS Battery The system configuration State Low
Enter the system setup program (see Entering
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