I have an Amd Radeon 6950 IceQ X HD turbo. I'm running the Intel Quad core i5-3750 (Overclocked) with 16 gb of ddr3 ram. Windows 7 Pro. 64bit. I have a Cooler Master Gx 650 watt power supply hooked up to it. I have the latest drivers installed for the card from the manufactures website. (haven't tried rolling back yet, that's my next step) It has been working fine. I have been watching the card temp and it has NEVER got over 46 degrees Celsius. but when I'm playing certain games out of nowhere the fps drops dramatically, then jumps back up after a minute or two. Need some help with this issue.