3-1-3

Master interrupt mask register test in progress or failure. Failure results in

 

a system halt.

 

 

3-1-4

Slave interrupt mask register test in progress or failure. Failure results in

 

a system halt.

 

 

3-2-4

Keyboard controller test in progress or failure. Failure results in a system

 

halt.

 

 

3-3-4

Screen memory test in progress or failure. Failure will result in a beep

 

code but not a system halt.

 

 

3-4-1

Video Retrace Failure.

 

 

3-4-2

Screen retrace test in progress.

 

 

3-4-3

Screen retrace test failure

 

 

4-2-1

Timer-tick interrupt test in progress or failure. An error message is

 

displayed on the screen. The system does not halt.

 

 

4-2-2

Shutdown test in progress or failure. If possible, the BIOS will continue

 

POST, skipping the memory tests.

 

 

4-2-3

Gate A20 failure. An error message is displayed on the screen and the

 

memory tests are suspended. The system does not halt.

 

 

4-2-4

Unexpected interrupt in protected mode. The system does not half when

 

an unexpected interrupt occurs.

 

 

4-3-1

RAM test of memory above 64K in progress or failure. POST will

 

continue.

 

 

4-3-2

Programmable interval timer channel 2 test in progress or failure. POST

 

will continue.

 

 

4-3-4

Real-time clock text in progress

 

 

4-4-1

Serial port test in progress or failure. POST will continue.

 

 

4-4-2

Parallel port test in progress or failure. POST will continue.

 

 

4-4-3

Math coprocessor test in progress or failure. POST will continue.

 

 

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