I started mining and my GPU temperature went up to 77 degrees celcius. I shut down the mining in fear of my gpu melting. Is it normal for the gpu to work that hard? I have a normal gaming rig with geforce 670 gtx.
It can perfectly handle that temperature, but if you're not comfortable with it, you can under clock/voltage your card. This will cause a minor decrease in hash rate, but i will keep the card cooler.