HP omnibook 4000 Service Manual

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45

none

CPU register test in progress or failure.

1-1-1

CPU Failure

1-1-3

CMOS write/read test in progress or failure. Failure will result
in a system halt.

1-1-4

ROM BIOS checksum test in progress or failure.  Failure will
result in a system halt.  Checksum test - All of the values in a
given range of locations are added together.  The range
includes a location which, when added to sum of the ranges,
will produce a known result (0).  BIOS is in FLASH and can
only be fixed through replacement of the flash device (not a
field repairable item) Customer units should be returned for
repair.

1-2-1

Programmable interval timer 0 test in progress or failure.
Failure will result in a system

1-2-2

DMA channel 0 address and count register test in progress or
failure.  Failure will result in a system halt.

1-2-3

DMA page register write/read test in progress or failure.
Failure will result in a system halt.

1-3-1

RAM refresh verification test in progress or failure.  Failure will
result in a system halt.

1-3-2

SMI RAM Bad.  Failure will result in a system halt.

none

First 64K RAM test in progress.  No specific test is performed
- just indicates that the test is beginning (i.e., no failure).

1-3-3

First 64K RAM chip or data line failure, multi-bit.  Failure
results in a system halt.

1-4-2

Parity failure first 64K RAM. Failure results in a system halt.

2-1-1/2/3/4

First 64K RAM chip or data line failure on bit x.  Failure results
in a system halt.

2-2-1/2/3/4

2-3-1/2/3/4

2-4-1/2/3/4

3-1-1

Slave DMA register test in progress or failure. Failure results
in a system halt.