Windows 10: Is my GPU the problem?

So recently my friend was having trouble with his EVGA graphics card underperforming. While he was trying to get a replacement part, they had him test his GPU in another PC. So I took my MSI graphics card out and put his in. He then installed the drivers for his graphics card. Right after this, we put my graphics card in his computer to see how it would handle. After the testing was done and we put the graphics cards back to the right places, I tried to play R6, but was getting very low...

Is my GPU the problem?

 

Windows 10 1709 System Restore problems...


That seems to be an attempt at Option 2 in the tutorial, which requires you to
a. Boot to a command prompt (Did you?)
b. You then seem to be mixing steps 3,4 and 5, thus your command is incorrect.

I suggest Option 1 is easier.

If you still have problems, please repost listing each specific step and saying which option from the tutorial you are using. Thanks.

 

B(lack)SOD after closing GPU demanding applications and games


I would like to suggest 2 more things if you don't mind,
1. Seat the GPU in another slot, if possible, and see if that helps anything
2. Use the GPU in another system, if possible, this is a step to determine that it is really the GPU and not multiple defective slots or something else from the system.

 

Is there a way to force a program to use a secondary GPU?

I have 2 GPU's (Nvidia GTX 970 and 1080) and I want to force a program to use the 1080 for certain programs/games. Going to Settings>System>Display>Graphics Settings should give me the option to switch GPU's. Unfortunately it does not list both of my GPU's
nor does it allow me to change to another one, only the default GPU is chosen (the 970). This is a desktop computer and I have tried the Nvidia control panel and UEFI settings without much luck. If I tried selecting a program to run on my 1080 (through the
Nvidia control panel), it would still run it on the 970. I have tried switching the GPU's around with not much luck there either. If I can suggest to Microsoft the option in the Graphics Settings to list both GPU's for selection, that would be great. Otherwise
I don't know what to do. Does anyone have any suggestions? Thank you for your time.