Upa Graphics Card; Table 4-6 Selected Obp On-Board Diagnostic Tests - Sun Microsystems Ultra 60 Service Manual

TABLE 4-6
Type of Test Description
Tests system video graphics hardware
test screen
and monitor.
Tests diskette drive response to
test floppy
commands.
Performs internal/external loopback
test net
test of the system auto-selected
Ethernet interface.
Outputs an alphanumeric test pattern
test ttya
on the system serial ports:ttya, serial
test ttyb
port A; ttyb, serial port B.
Executes the keyboard selftest.
test
keyboard
Sequentially test system-configured
test -all
devices containing selftest.
4.6.5

UPA Graphics Card

Note – The UPA graphics card includes the vertical, single buffer and vertical, DBZ
graphic cards.
The UPA graphics card contains a built-in diagnostic test that is enabled through the
OBP. The UPA graphics card built-in diagnostic test verifies basic graphics
functionality without booting the operating system software.
To execute the built-in diagnostic test, the system must be at the ok prompt.
To initilize the UPA graphics card diagnostic:
1. At the ok prompt, type:
ok setenv diag-switch? true
diag-switch? = true
4-12 Sun Ultra 60 Service Manual • August 2001
Selected OBP On-Board Diagnostic Tests
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
system and to an Ethernet tap or hub or the
external loopback test fails.
A terminal must be connected to the port being
tested to observe the output.
Four keyboard LEDs should flash once and a
message is displayed: Keyboard Present.
Tests are sequentially executed in device-tree
order (viewed with the show-devs command).