Graphics Card; Table 4-3 Selected Openboot Prom On-Board Diagnostic Tests - Sun Microsystems Sun Blade 1000 Service Manual

TABLE 4-3
Type of Test
test screen
test floppy
test net
test-all
4.8.5

Graphics Card

The graphics card contains a built-in diagnostic test that is enabled through the
OpenBoot PROM. The graphics card built-in diagnostic test verifies basic graphics
functionality without booting the Solaris operating environment software.
To execute the built-in diagnostic test, the workstation must be at the ok prompt.
To initilize the graphics card diagnostic:
1. At the ok prompt, type:
ok setenv diag-switch? true
diag-switch? = true
4-12 Sun Blade 1000 and Sun Blade 2000 Service Manual • January 2002
Selected OpenBoot PROM On-Board Diagnostic Tests
Description
Tests workstation video graphics
hardware and monitor.
Tests diskette drive response to
commands.
Performs internal/external loopback
test of the workstation auto-selected
Ethernet interface.
Sequentially tests workstation-
configured devices containing
selftest.
Preparation
diag-switch? NVRAM
parameter must be true for the
test to execute.
A formatted diskette must be
inserted into the diskette drive.
An Ethernet cable must be
attached to the workstation and to
an Ethernet tap or hub. If the
Ethernet cable is not correctly
attached the external loopback
test will fail.
Tests are sequentially executed in
device-tree order (viewed with
the show-devs command).