Computer freezing randomly for half a second!

Afterburner is widely used and many GPU utilities are based on it. Afterburner is basically an overclocking tool, but has some excellent monitoring tools incorporated into it, complete with on screen displays of most anything you could want as well as capability to set customized fan profiles and such. I would strongly suggest you not move the overclocking sliders on the front page though. Go into the settings for on screen display and fans and set up a profile where it shows what you want on screen during a game and set a custom fan profile to help keep the heat down. It could also be helpful to add a couple of good intake fans to your case if possible, to bring in more cool air. After all, it's the air inside the case that your graphics card is using to cool itself. The cooler that air is, the better off all your components will be.

Hello guys,

Speluncus can you run Furmark for essenbe please.

Video Card - Stress Test with Furmark

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4. Click "Settings", and select "Log GPU temperature". Press OK when done.

   Warning

Watch for artifacts on the screen, and keep an eye on the temperature log. If you see artifacts, or the temperature levels out, stop the test.

Let's see how well we can control temps before running Furmark. Temps seem to be the issue at this point. Furmark will send them through the roof. Once we get temps down, then run Furmark is what I think I would do.

Good point, Im begin to ambitious at the moment.

You can clean the dust from the inside with a can of compressed air (don't use an air compressor) and make sure the wiring is tied out of the way so it does not obstruct air flow. That can help a lot. Zip ties are your friend. But, seriously, 80C should not make it BSOD. Most cards can take that temp. It isn't desirable, but they can take it normally.

70 is acceptable, depending on what game you're playing. You can always take the side panel off the computer and blow a house fan directly in it.

Hauk essenbe and Harry have some good material there to work and I agree the ambient temp is also very important ie if the room is at 78C it is going to hard to get it much lower than that.
Personally I have a thing about case fans and install as many as I can and the bigger the better.
An example is my Ivy Bridge has 4x200mm 4x140mm