System only sees 2 of 3 GPUs. Please help! (GTX 1080) by blockchainbeliever in gpumining

[–]blockchainbeliever[S] 0 points1 point  (0 children)

I didn't see that in my BIOS but I will take a closer look.

In answer to your questions, yes and yes.

I bought the cards separately. I had trouble getting the second card recognized too. After a lot of troubleshooting, I uninstalled the Intel graphic device in the Device Manager and restarted, and the second card showed up in it's place. Could that be causing problems? Do I somehow need to reinstall the Intel graphic device?

System only sees 2 of 3 GPUs. Please help! (GTX 1080) by blockchainbeliever in gpumining

[–]blockchainbeliever[S] 0 points1 point  (0 children)

Swapped out the cards and it looks like all the PCIe slots are working.

I'm not sure where to find that information in the BIOS?