Lemm – Blowing everything out was a great first step. However, go one further.
Do you have case fans? Did you blow the power-supply out? If not, get some case fans and blow the power-supply out. The latter is very important.
Next, reseat the Graphics Card securely and update to the latest nvidia drivers.
Leave the side of your PC off and load up CSS and see how it does.
Lemme know 