Well it would seem that there is indeed something amiss in the depths of my PC. It started a couple of weeks back when, upon loading Fallout NV, I would be greeted with a mess of colours and no other option other than to force a reboot. This only occurred once I started the game itself, there were no issues on the desktop or the Fallout menu screen.

I tried the obligatory driver re-installation and did a computer clean up to no avail. Fearing a hardware issue I ran ATI Tool which tests the stress of my graphics card. Sure enough, as the load increased i got the same result.After some system checks such as temperatures etc and cleaning the fans out the issue vanished.

However now I can't seem to load up F.E.A.R. 2...

As soon as it starts it freezes on the loading screen, again forcing a reboot is my only saviour. Generally the rest of my system is fine and appears as normal, things are just starting to go wrong when I get into the realms of 3D, as I have exhausted all other options I can only assume either my graphics card or my PSU are dying. The problem is I have nothing to effectively test them with, I don't own any other PSUs or GFX cards that will deliver the same performance for testing purposes, and seeing as its only occasionally happening, I need the specs to be the same to help identify it. I can't run my GFX card with any other PSUs and I can't put my PSU under the same strain with any of my other GFX cards.

I guess my only option is a PSU tester so I can at least rule that out.