ImmortanJoe
Member
You might remember my Performa 5200CD thread? Or not. it doesn't matter. It was one of two computers I purchased. The other is a 7300/200. Turns on and off with the front power button. Turns on with the keyboard. Power LED lights. Not much else.
So far I've tried a few things in no particular order. Cleaned the motherboard (including with de-mineralised water) and all connectors. Replaced heatsink paste on the CPU card. Re-capped the motherboard (yes I did the underside too). Tried leaving it running for a bit to see if it "wakes up" as some borderline Macs do (It didn't. The PSU also failed). Repaired the PSU. Tried powering up with every combination of RAM, VRAM, and cache board that made sense, With drives without drives etc. With and without CUDA battery. Probably other things. I don't remember. I'm out of ideas. However I did just receive a neat little single channel digital scope from China. My old CRO is a long way away and it's been hard making progress without it so I had to do something. Also all the PSU voltages are good.
So... ideas?
A note on the 5200CD. I haven't given up on it. I was just waiting for the scope because I'm stuck with that too.
So far I've tried a few things in no particular order. Cleaned the motherboard (including with de-mineralised water) and all connectors. Replaced heatsink paste on the CPU card. Re-capped the motherboard (yes I did the underside too). Tried leaving it running for a bit to see if it "wakes up" as some borderline Macs do (It didn't. The PSU also failed). Repaired the PSU. Tried powering up with every combination of RAM, VRAM, and cache board that made sense, With drives without drives etc. With and without CUDA battery. Probably other things. I don't remember. I'm out of ideas. However I did just receive a neat little single channel digital scope from China. My old CRO is a long way away and it's been hard making progress without it so I had to do something. Also all the PSU voltages are good.
So... ideas?
A note on the 5200CD. I haven't given up on it. I was just waiting for the scope because I'm stuck with that too.