Recently I had to move my PC from one house to another, I set it up and then started it up, after about 5 minutes it shut down. I then looked inside my case to find the fan to my processor had some how fallen into my Video card, I then reattached all four pins on my fan to the motherboard again.
I then booted my PC again, and decided to test if everything was ok by testing it on something that would test my system, so I booted up SWTOR. It took alot longer to load then usual, and on the title screen I was getting low frame rates, while I can usually run it on maximum with high FPS. Then my PC shut down again.
Am wonderting if my Processor is fried, or maybe I could just reapply a layer of thermal paste to it and it would solve the issue? Or is it my Video Card.
Nvidia GrForce GTX 560 Ti
Intel Quad Core i5-2500k CPU @ 3.30GHz
The computer must have shutdown the first time from exceeding the maximum temperature. I don't think applying a new layer of thermal paste is going to solve the issue, unless the heatsink also fell off when the fan did.
It's possible but highly unlikely. Processors are much harder to fry than many people will lead you to believe. When faced with inadequate cooling they will do exactly what you describe, shut themselves off before any damage occurs. Since you can get into Windows this suggests that no significant damage has occurred. Processor failure is typically indicated by a BSOD. The system shutting off is either a different problem or a self protection mechanism. I suspect that it is still not cooling itself properly.
What you need to do now is find out why your fan fell off. If the entire heat sink and fan assembly fell off you will need to do is take the heat sink and fan off, clean the thermal paste off of both the CPU and the cooling assembly using rubbing alcohol or electronic contact cleaner (available at any automotive store for about 5 bucks, works like a charm), then clean the heat sink and fan with hot soapy water until spotless (do not clean the CPU). Then, lubricate the fan with some WD40 and carefully put it all back together with a fresh layer of thermal paste.
Quick edit: run Prime95 for an hour or two to test your processor's stability