I resoldered it all back together, and just finished cleaning it up with alcohol. And I attached a DVD drive as a load, and put it in series with a 100W lightblub limiter. And the light light right up and flashed about 3-5 times in under 1 second. So I shut it off immediately.
Does that sound like it's trying to start
The DVD player didn't, and I don't have it's fan hooked up.
Nothing blew-up and I didn't notice smoke, but I've never tested a working ATX PSU before.
It reminds me of when I tried a UPS with a 40W limiter, and that wasn't enough for it to turn on and it just buzzed a bit and I think the blub flickered. 100W blub was enough for it draw enough current.
Now I'm 1/2 afraid to try again with the DMM and scope attached.
Before I replaced the CM6800 PWM/PFC chip, the highside would power up, and the 12V stby, and it would not light the 100W at all.