OK so I have a GTX 590, The card was working great, but every know and then the card fails to rev up the cores, while games run at 10-25 fps, and the only solution is a restart. I've looked at the cores while gaming and the speed is 607 for the first core and 550 for the second, I know 607 is what they are both supposed to be at. I need to know of any fixes, or any graphics card combination that can replace the the one card. I am open to SLI, Crossfire or just a single card, budget of around $1000 I just an opion on what to do, go with new cards? or stick out the issues I'm having and waiting for a new generation of cards. . And RMA is not an option. Current system: Intel 2500k @ 4Ghz 16GB's Corsair Vengeance 1600 MSi Z68A-GD65 (G3) Nvidia Edition GTX 590 Thermaltake TX2 850 Watt 2X 2Tb HDD, 2X 1Tb HDD, 64Gb Corsair GT Asus Xonar Essence STX Corsair H50 I think thats everything, thanks in advance everyone.