I'm having some compatibility issues with my new gfx card, I think. I'm pretty new at this so I'm having trouble diagnosing it.
Card is a Radeon Saphire 6850, found here: http://www.newegg.com/Product/Product.aspx?Item=N82E16814102908
My computer is this: http://www.newegg.com/Product/Product.aspx?Item=N82E16883227339
System will either freeze (lock up, force a manual shutdown) or automatically restart during gaming. This occurs at odd intervals. Sometimes I will be able to play for hours and it will be fine - other times I will log in and freeze within 10 minutes. Once I freeze one time, I almost always will freeze again in the same spot.
I've updated drivers, I've updated windows service packs, I'm fairly sure i've ruled out overheating (comp runs ~50 degrees) THOUGH I am not sure if I can rule out overheating of the gfx card itself - don't know how to check.
Really not sure what else to do!
Any help would be spectacular.