Hi, well i just bought grid 2 and i started it up and put the graphics on high and then i started to hear a buzzing noise coming from my graphics card i googled it and saw that it might be stressing it, i then opened a software that came with the graphics card called asus gpu tweak and saw while grid was running it was hitting 98% usage and the temp reaching about 60-70c. could there be a fault with my card? or am i doing something wrong? 
Cpu: Intel i7 3770k @ 3.5GHz
Ram: 16GB (2x8GB) Corsair DDR3 (1600mhz)
Graphics card: Asus Gtx 660Ti

Cpu: Intel i7 3770k @ 3.5GHz
Ram: 16GB (2x8GB) Corsair DDR3 (1600mhz)
Graphics card: Asus Gtx 660Ti