Sun Microsystems Blade 1500 Service, Diagnostics, And Troubleshooting Manual page 174

OpenBoot Diagnostics Test Usage (Continued)
TABLE 8-1
OpenBoot Diagnostics
Test
serial@0,2e8
serial@0,3f8
sound@8
usb@a
usb@b
8-10 Sun Blade 1500 Service, Diagnostics, and Troubleshooting Manual • December 2004
Purpose
Tests the secondary or
primary serial port at
different baud rates.
Tests the audio controller
and the CODEC chip.
Tests the first USB
controller.
Tests the second USB
controller.
What Error Results Might Mean and What to Do
Problem with the item connected to the serial port or
I/O subsystem chip. If not the item, check the
motherboard. See "Motherboard Problem" on
page 4-34.
Problem with item attached to the audio ports, the I/O
subsystem chip, the CODEC chip, speaker, or speaker
cable. If not item, check the audio and motherboard. See
"Audio Output Problem" on page 4-12
"Motherboard Problem" on page
Problem with the item attached to the front USB ports.
Audio/USB board not making good connection to the
motherboard or I/O subsystem chip. If not item, check
cable, audio/USB board, and motherboard. See
Problem" on page 4-10 or
page 4-34.
Problem with item attached to the rear USB ports or
I/O subsystem chip. If not item, check motherboard.
See "Motherboard Problem" on page
or
4-34.
"USB
"Motherboard Problem" on
4-34.