About Openboot Diagnostics (Obdiag) - Sun Microsystems Enterprise 250 Owner's Manual

PCI Slots: OK
Use the .rsc command at the ok prompt to view a summary of SSP POST results.
ok .rsc
SEEPROM: OK
I2C: OK
Ethernet: OK
Ethernet (2): OK
CPU: OK
RAM: OK
Console: OK
RSC Console line: OK
RSC Control line: OK
FlashRAM Boot CRC: OK
FlashRAM Main CRC: OK
RSC Console Link: OK
Console Selection: ttya

About OpenBoot Diagnostics (OBDiag)

OpenBoot Diagnostics (OBDiag) reside in flash PROM on the main logic board.
OBDiag can isolate errors in the following system components:
4 Main logic board
4 Diskette drive
4 CD-ROM drive
4 Tape drive
4 Disk drives
4 Any option card that contains an on-board self-test
On the main logic board, OBDiag tests not only the main logic board but also its
interfaces:
4 PCI
4 SCSI
4 Ethernet
4 Serial
4 Parallel
4 Keyboard/mouse
4 RSC/SSP
Diagnostics and Troubleshooting
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