Hello guys. I am using Zotac gtx 960 amp edition 4GB. When I play games like GTA 5, battlefield hard-line (GPU usage 99%) I am getting 80°C constant bt sometimes it goes up to 83°C and the GPU fans are running on auto mode which were running at 55-57%. So I set the fan speed at manual mode and set the fan at 75%. Now I am getting 70-76°C on full load. So guys does it safe to change the fan speed? And please tell me a ideal fan speed curve of my GPU so u can always set it..