I picked up an XLR8 MACh Speed G3 (supposedly a 400mhz 1mb cache upgrade but it could be anything as the ZIF processor could of been swapped) processor upgrade and a Sonnet Crescendo G3 400/512 processor upgrade (it has a black and circular heatsink instead of the square and purple one) for free.
I have tried both upgrade modules in both my older Powermac 8600/300 and newer 9600/300 and in both systems the processors will warm up (and an LED on the XLR8 will blink) but the system will not chime and refuse to boot.
Yes, I stripped the systems down to nothing but the cpu, a video card and ram just to make sure it was not a hardware issue.
It would be nice if I could at least got the 9600 running a better processor (I was going to get it a G4/1000 last year but of course, they discontinued them a few days before my first steady paycheck :disapprove: ) but I'm stumped. I have honestly never seen a mac so blatently refuse to work.
Any ideas on what to try next?
I have tried both upgrade modules in both my older Powermac 8600/300 and newer 9600/300 and in both systems the processors will warm up (and an LED on the XLR8 will blink) but the system will not chime and refuse to boot.
Yes, I stripped the systems down to nothing but the cpu, a video card and ram just to make sure it was not a hardware issue.
It would be nice if I could at least got the 9600 running a better processor (I was going to get it a G4/1000 last year but of course, they discontinued them a few days before my first steady paycheck :disapprove: ) but I'm stumped. I have honestly never seen a mac so blatently refuse to work.
Any ideas on what to try next?