Re: Evga gtx 560 ti fpb or msi gtx 560 ti twin frozr?
insufficent cooling does that, i noticed it will all my nvidia cards once the temps hit 90C the video card throttles to have the speed typically 50% of the standard clock rate. At which point you need to reboot the computer to restore speeds as it resets the driver. It's a fail safe, might want to manually increase the fan speeds, MSI afterburner allows you do set fan speeds.
"Never interupt your enemy when he is making a mistake."
Processor: AMD Phenom II X6 1090T Black Edition @ 4.25GHz
Motherboard: Gigabyte GA-990FXA-UD3
Graphics: ASUS ENGTX470
Memory: 4GB Kingston HyperX Blu PC12800 DDR3
Monitor: LG E2260V-PN Full HD WLED 22" & DELL 20" 2005FPW,
Power: Coolermaster Silent Pro Modular 850w PSU
Sound: Logitech Z5500 Digital.
Cooling: Thermalright Silver Arrow.
1st Storage: Kingston V100 SSDNow128GB SSD
2nd Storage: Samsung Spinpoint F1 750GB