I have an extra (dead) CPU too. I think I'll put it on the wall in my new computer room as it's a pretty impressive piece of tech.
Your best bet is to find one locally and avoid shipping. IP26 is quite fragile.
Now this is a deep dark secret, so everybody keep it quiet
It turns out that when reset, the WD33C93 defaults to a SCSI ID of 0, and it was simpler to leave it that way... -- Dave Olson, in comp.sys.sgi
Currently in commercial service:
In the museum
: almost every MIPS/IRIX system.Wanted
: GM1 board for Professional Series GT graphics (030-0076-003, 030-0076-004)