At the moment I'm actually using a pile of normal CPU clients to do folding. The Phenom rig is my parents' e-mail / browsing machine (you can see why I installed FAH on it) so it spends all but 4 hours a day off.
I'd love to fold with the Radeon 4850 in my C2D rig but it gave nothing but UNSTABLE_MACHINE once they started the 47XX work units. Still can't figure out what's wrong there... tried 2 versions of Windows and tested the hardware with:
- 8 hours of MemTest86
- 10 hours of BOINC + FurMark (couldn't believe I didn't see artifact after so long at 92-98 Celsius on the GPU)
- hdtune hard drive test
I'll give GPU / SMP another go when my Pentium 4 dies; that unmistakable smell of electronics failure is already coming from the hard drive