That card shouldn't
have issues with CS go. I'd check that you're running the latest drivers, perhaps do a clean install of them. Also, just to ask, is your power supply large enough for the GPU?
Also try running 3D Mark a few times to give it a good stress test. If this fails, then it's likely you got a bad card and should exchange it. 3DMark 11 - DirectX 11 video card benchmark from Futuremark