mixed gpu's

It seems that a lot of GPU problems revolve around specific versions of drivers. Though AMD has their own support structure, you can often learn from information reported by others who fold.

Moderators: Site Moderators, FAHC Science Team

Robert17
Posts: 8
Joined: Tue Feb 28, 2017 1:51 pm

Re: mixed gpu's

Post by Robert17 »

No. I'm not sure what that would accomplish. Please share more of that thought.
foldy
Posts: 2061
Joined: Sat Dec 01, 2012 3:43 pm
Hardware configuration: Folding@Home Client 7.6.13 (1 GPU slots)
Windows 7 64bit
Intel Core i5 2500k@4Ghz
Nvidia gtx 1080ti driver 441

Re: mixed gpu's

Post by foldy »

Just to see if this is some sort of mainboard slot problem. Maybe Slot 1 likes AMD more then Slot 2 because of pcie slot power usage?
Robert17
Posts: 8
Joined: Tue Feb 28, 2017 1:51 pm

Re: mixed gpu's

Post by Robert17 »

I don't know what that may accomplish. Please share what you may know about why that may affect performance.
foldy
Posts: 2061
Joined: Sat Dec 01, 2012 3:43 pm
Hardware configuration: Folding@Home Client 7.6.13 (1 GPU slots)
Windows 7 64bit
Intel Core i5 2500k@4Ghz
Nvidia gtx 1080ti driver 441

Re: mixed gpu's

Post by foldy »

I know it is just a speculative idea and maybe does not change things at all. If we assume the mainboard has a power issue when both GPUs are folding. And each GPU pulls power from pcie slot up to 75 watts. Maybe the gtx 1070 pulls more or less power then the R9 290X and just swapping the GPUs could lead to a different power usage in the 2 slots. Which may help the mainboard to run both.

I also see the mainboard has a 8 pin power plug. Can it make a difference which power supply cable goes to mainboard and which to GPUs?
Post Reply