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Client doesn't recognize second GPU

Posted: Wed Apr 22, 2020 8:58 am
by goblinscrytoo
Hello! New user here, hope I'm posting in the correct place.

I just opened the FAHControl app and was looking around, and I noticed that there's only one GPU listed under "System Info", but I know for sure I have two, an NVIDIA one and an AMD one. Only the NVIDIA one is listed. Any way I could get them both to be recognised, especially since the AMD one is better?

Re: Client doesn't recognize second GPU

Posted: Wed Apr 22, 2020 9:21 am
by ajm
It would help to have your log: viewtopic.php?p=327412&f=24#p327412

As a rule, for it to work, you have to install AMD drivers from AMD's website (then reboot). Drivers provided automatically by Windows won't work well.

Then if the card doesn't show up automatically, you can open Advanced Control (of Fahcontrol) and manually add a GPU slot. If that doesn't work, and you are using FAH 7.6.9, you can try this:
PantherX wrote:Regarding the inability to add a GPU slot, I would suggest that you:
Manually download the GPUs.txt file from here: https://apps.foldingathome.org/GPUs.txt (right-click save as GPUs.txt)
Exit the client
Copy the GPUs.txt file from the Downloads folder to %AppData%\FAHClient
Reboot your system
Start up the client and ensure that you can see your GPU in the log file
Add a GPU slot from FAHControl -> Configure -> Slots tab -> Add -> GPU -> OK -> Save
If that still doesn't work, please post your log.

EDIT: Also as a general rule, when your system has AMD and Nvidia GPUs, it will be safer to uninstall FAH (incl. Data), install the latest drivers, and then reinstall FAH. The client is better at detecting hardware during installation than at discerning changes in the configuration afterwards.

Re: Client doesn't recognize second GPU

Posted: Wed Apr 22, 2020 11:50 am
by goblinscrytoo
Thank you! Uninstalling, installing the drivers, then reinstalling worked.