Code

Cause

 

 

3-4-2

Screen retrace failure

3-4-3

Search for video ROM failure

4-2-1

No timer tick

4-2-2

Shutdown failure

4-2-3

Gate A20 failure

4-2-4

Unexpected interrupt in protected mode

4-3-1

Memory failure above address 0FFFFh

4-3-3

Timer-chip counter 2 failure

4-3-4

Time-of-day clock stopped

4-4-1

Serial or parallel port test failure

4-4-2

Failure to decompress code to shadowed memory

4-4-3

Math-coprocessor test failure

4-4-4

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

Possible Cause

Corrective Action

 

 

 

8042 Gate-A20

The keyboard controller

If you receive this message after you make

error

failed its test.

changes in the system setup program,

 

 

enter the system setup program and

 

 

restore the original value(s).

Address Line

An error in the address

Short!

decoding circuitry in the

 

memory has occurred.

Reseat the memory modules (see "Memory" on page 90).

C:Drive Error

C:Drive Failure

Cache Memory Bad,

Do Not Enable

Cache

The hard drive is not working or is not configured correctly.

The cache memory is not operating.

Ensure that the hard drive is installed correctly in the computer (see "Drives" on page 106) and defined correctly in the system setup program (see "System Setup" on page 166).

See "Contacting Dell" on page 179 for instructions on obtaining technical assistance.

70

Troubleshooting

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Dell XPS 720 owner manual System Messages, Message Possible Cause Corrective Action
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XPS 720, 720 specifications

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