Hey everyone i just oc'd my 2 evga gtx 670's and i noticed that my cards were getting up to 81 degrees Celsius. I have the fan speed in EVGA's precision on auto and after the benchmarks i would see that the fan speed is usually at 45-55%(it can go up to 80%). Whats a safe temp to keep my cards at while in prolonged game sessions, i play BF3 ALOT. Also would it be safe to run my fan speed at 65-70% at all times? i get around 70-74 degrees Celsius when i run benchmarks at that fan speed.