Openboot Diagnostics - Sun Microsystems Ultra 80 Service Manual

2. At the ok prompt, type:
ok test screen
Starting AFB Selftest
2-4 minutes for the full test)
(This will take an estimated
AFB Command Register Test ......... pass
AFB Float Microcode Test .......... pass
AFB Passthru Packet Test .......... pass
AFB RAMDAC Register Test .......... pass
AFB General Initialization Test ... pass
AFB RAMDAC Sync Generator Test .... pass
AFB Memory Fixed-Value Test ....... pass
AFB Memory Sequenced-Value Test ... pass
AFB Rectangle/Scroll Test ......... pass
AFB Selftest Completed: No Errors Detected
ok
3. When the UPA graphics card on-board diagnostics are completed, type:
ok setenv diag-switch? false
diag-switch? = false
4.8

OpenBoot Diagnostics

The OpenBoot diagnostics is a menu-driven set of diagnostics that reside in flash
PROM on the motherboard. OpenBoot diagnostics can isolate errors in the following
system components:
Motherboard
Diskette drive
CD-ROM drive
Hard drive
Any option card that contains an on-board self-test
OpenBoot diagnostics perform root-cause failure analysis on the referenced devices
by testing internal registers, confirming subsystem integrity, and verifying device
functionality.
On the motherboard, OpenBoot diagnostics test not only the motherboard but also
its interfaces:
PCI
Chapter -15