FPS drops when gaming

[The Red Man]

So. I've had an issue with my pc for 3 days now. When i start any game the FPS goes down to under 10fps. Before this i had no problems what so ever. I have tried reinstalling drivers for my video card and reinstalling windows. When the game is launched resource monitor shows no more than 10% of the cpu being used.
Video card - AMD Radeon™ HD 7770
CPU - Intel core i3-3220
RAM- Adata 4gb
Windows 10
Thank you in advance!

 

[RobCrezz]

Use something like MSI Afterburner, check the temperatures of the GPU and CPU.

 

[The Red Man]

Use something like MSI Afterburner, check the temperatures of the GPU and CPU.

Does it have to be while in a game or?

 

[RobCrezz]

Use something like MSI Afterburner, check the temperatures of the GPU and CPU.

Does it have to be while in a game or?

Yeah, so you can get a real reading while under load.

 

[The Red Man]

All CPUs have an average temperature of 37 degrees

 

[RobCrezz]

What about the GPU?

 

[The Red Man]

What about the GPU?

averages at 40

 

[fabiodrm]

its just a random game or are you trying to play game like division or the witcher3?

 

[The Red Man]

its just a random game or are you trying to play game like division or the witcher3?

Everything. CS:GO, KillingFloor2, Dishonored,Splinter Cell Blacklist. All games ive played just fine before this problem

 

[RobCrezz]

Er, check you havent plugged the monitor into the motherboard and using the IGPU, instead of the graphics card?

 

[The Red Man]

Er, check you havent plugged the monitor into the motherboard and using the IGPU, instead of the graphics card?

I unplugged it from a DVI connector and plugged it into my PC. That might be the problem?

 

[RobCrezz]

Er, check you havent plugged the monitor into the motherboard and using the IGPU, instead of the graphics card?

I unplugged it from a DVI connector and plugged it into my PC. That might be the problem?

Yeah, make sure its plugged into one of the ports on the graphics card it self, not the motherboard.