My setup has two GPUs: my main (display) card, a GTX680, and a second (folding only) card, a 9800GTX, I have them set up as slots and they show Running when I set to Full. My problem is that the main GTX680, while it shows "Running" in its slot, is always idle. I've checked it with GPUMeter and with EVGA's app, both show it as just sitting there. I've tried removing and re-adding the GPUs as well as setting their indices manually, to no avail. The 9800GTX is somewhat sporadic, but usually sits at 87% usage. The GTX680 sits at 0-2%. Thoughts? By every measure it looks like it should be working, it's just not doing any work on that one GPU. Thanks, Dave
I had similar troubles a while back. Check my thread at http://forums.guru3d.com/showthread.php?t=382219 for tips & see if anything in there works for you. When I finally got mine working, the 2nd (older & dedicated) GPU was at a constant 99% work load, and the primary GPU & CPU folded only when machine was idle, so hopefully this helps.
If you set GPU slot 1 index to 0 and GPU slot 2 index to 1 then move the power slider to "Full" and they should work. That's all I did when I had my GT640 and GTX660 both folding.
Welcome to the Guru3D F@H Team davepl, If sykozis method doesn't work, then you might have to do it using a long method. Here are two links to it: fredfoobar -> https://foldingforum.org/viewtopic.php?p=199379#p199379 Mine -> https://foldingforum.org/viewtopic.php?p=244457#p244457 Please note that if you face any difficulties while adapting the above instructions for your system, post your log here and I can provide additional details to help you out.