[rescue] Speaking of old SGIs...

[Gerhard Lenerz]

Hello all,

I'm trying to resurrect an old 4D/60G which has been in my possession for 
quite a while. It always had a flakey graphics subsystem but it did 
(and still does) boot into the operating system and I could log in. 
Before cleaning the boards backplane contacts it would show something 
on the screen, but the PROM wouldn't detect the graphics option. Now 
with these contacts cleaned that is no longer an issue but the machine
dumps always core when the OS tries to load the graphical user 
interface complaning about a "Data Bus Error". The GF3 has two empty 
sockets near the Motorola CPU and I wonder if that is the way it is 
supposed to be. Does anybody on this list have a Professional Iris 
with "G" graphics option? I could use some ideas here... 


Gerhard