Video/Graphics Adapter POST:
The firmware does test the VGA adapter but not the display. The system gives a
speaker beep sequence when the VGA adapter is found to be non-functional. The
beep sequence is a one long beep followed by one short beep; the error is logged
and the system continues.
SCSI subsystem POST:
The SCSI POST opens the adapter and runs several test scripts which check and
exercise the various functions related to the chips on the SCSI adapter, such as
DMA, and simulate mailbox commands. If an error is detected, an 8 digit error code
is displayed, and the error is entered in the SMS error log and the system continues.
Keyboard/Mouse Adapter:
The keyboard/mouse adapter has a built in power on test, and the firmware checks
the results. If an error is detected, an 8 digit error code is displayed and the error is
entered in the SMS error log and the system continues.
6-10 Service Guide
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