Sun Microsystems Ultra 1 Creator Series Service Manual page 62

To execute the built-in diagnostic test, the system must be at the OBP monitor ok
prompt.
To initilize the FFB card diagnostic:
1. Enter setenv diag-switch? true at the ok prompt. The diag-switch? =
true prompt and the ok prompt are displayed.
Note – If the FFB card is being used as the system display device, perform Steps 2
and 4. If the FFB card is not being used as the system display device, perform Steps
3 and 4.
2. Enter test screen at the ok prompt.
CODE EXAMPLE 4-7
Verifying Console Mode for Frame Buffer Board
This will take a few minutes.
Verifying Frame Buffer Memory used for console mode
This will take about two minutes.
a. A series of patterns are displayed.
b. FFB Frame Buffer functional test passed appears.
3. Enter test /SUNW,ffb at the ok prompt.
CODE EXAMPLE 4-8
Verifying Console Mode for Frame Buffer Board
This will take a few minutes.
Verifying Frame Buffer Memory used for console mode
This will take about two minutes.
a. A series of patterns are displayed.
b. FFB Frame Buffer functional test passed appears.
4. When the FFB on-board diagnostics are completed, enter
setenv diag-switch? false. The diag-switch? = false is displayed.
4-14 Ultra 1 Creator Series Service Manual • August 1996