[SteveI]

Thanks cadaveca, good read.
No dice tho...
I'm running the video card stock, fastwrites off.
4x AGP,
slowed memory timings to 3.0-4-4-8, disabled PAT, extra voltage.

At 240fsb, tons of artifacts. I have to slow it down to 230 to make them go away. The system is 100% 24/7 folding stable.

I suspect the mobo... Is there a program that will show me actual AGP speed... Not calc'd or assumed like sisoft? I think it is locked but still, nothing else I can try.

EDit: forgot to mention, Bootstrap by CPU, or something like that too.
cadaveca: btw, this is the card you sent me.... Did you have any issues like this as high fsb? I know it doesn't make sense, but I'm taking shots in the dark. Very strange...