JoeB1355
Well-known member
Got any tips? I'm trying to understand the relationship between the 3 CPU's. My board keeps watchdogging and I can only get activity on CPU 1, how and when do other CPU's come into play?
pin 40-30 have activity on cpu 1 and on cpu2 and 3 nothing no hi or low dead. I tried all cpu's in slot 1 and they all have activity so I think the cpu's are good or at least not 100 % dead as they appear when in slot 2 and 3.
right now I thinking of pulling the 139 chip since roms and 2 and 3 never get selected only 0 and 4 get selected. We'll see if that gets me any further right it has a display with graphics an mostly the number 5 that flickers when the cpu is reset same display if I ground wddis just no flicker
the board was corroded and had some damage to about 10 or 11 traces I think I have all that fixed prior it was just graphics garbage no flicker. Kinda the way it acts with no CPUs installed
so after trace repair I think I'm a tiny bit further, but not too far I don't think!
pin 40-30 have activity on cpu 1 and on cpu2 and 3 nothing no hi or low dead. I tried all cpu's in slot 1 and they all have activity so I think the cpu's are good or at least not 100 % dead as they appear when in slot 2 and 3.
right now I thinking of pulling the 139 chip since roms and 2 and 3 never get selected only 0 and 4 get selected. We'll see if that gets me any further right it has a display with graphics an mostly the number 5 that flickers when the cpu is reset same display if I ground wddis just no flicker
the board was corroded and had some damage to about 10 or 11 traces I think I have all that fixed prior it was just graphics garbage no flicker. Kinda the way it acts with no CPUs installed
so after trace repair I think I'm a tiny bit further, but not too far I don't think!