Hey all, I just wanted to establish a list of all the possible causes of this problem:
Whenever I raise my resolution in games to anything more than 1280X1024 on higher texture settings with anti-aliasing it then proceeds to glitch like a bitch and crash. Such games as Fallout 3, Dirt, COD4, BiAHH as well as 3dMark06 have this problem.
To date I have tried everything I can think of to remedy this issue. I changed my videocard from a 8800GS to a 9800GT, upgraded my PSU to a 600W OCZ SS, tried older drivers, re-installed widows etc.
If anybody has any idea of what could cause this please post it, no matter how unlikely it is to be the culprit. I want to try everything I can to fix this so I don't have to replace the rest of the rig.
Well Ram can cause just about anything to go wrong if its not working properly. You would need to pull the ram and try it one stick at a time and see if the problem is still there, then two etc. You need to be sure you try all differant options, if you think the second stick is bad for example try a differant one first, if it then works its most probably the stick you thought, if both seem bad try a "bad" one on its own first if thats seems ok then it could be an issue with running two. You may not find an issue buy at this point it needs doing.
Also any Overclocks you have set (GPU or CPU) may be stable at lower resolutions/workloads but when you increase the load they can quickly go from stable to oh dear whats happening.
Singling out 3dMark06, its possible you have a bad download or install. I have had issues with this before that have been fixed with a fresh download and install.
@zipzoomflyhigh Yep, I've had the same problem with both of them. Weird eh.
@Mactronix I currently have no OC's going on this system and I've used different installations of 3dMark on different versions of windows! All with the same result. I'm going to dry fiddling with the RAM for a while now, how do I check the RAM voltages?