ETA: 3 hours 37 minutes. It works
-edit- Hmm, looking at the GPU load with MSI Afterburner (CCC won't show the page for some reason) and GPU usage spikes... going from 98% to 20% and everything in between all the time. (6950 at stock speeds)
I'll OC it to 900/1425 to see what it does then.
-editsss- More than an hour further. The OC seems to have done nothing to how fast it folds and GPU usage is still spikes
Also the time per frame for my CPU folder (2600K 4.5GHz, -smp -bigadv flags) went from 30 minutes to 40.
update: The client crashed at the 95% mark, taking my whole system with it. After a reboot I tried it again, 30 seconds later the same happened. No more GPU folding for me :(