ZippyPeanut :
Thanks for your cautionary advice. To tell you the truth, I’m not sure I really know what I’m doing. So perhaps I could benefit from knowing why setting a custom fan profile might do more harm than good.
Thanks.
thanks for the question.
To be honest, software has come a LONG way in regards to fan control, so as long as you make simple or small adjustments then really nothing horrible should happen. Nvidia new technology really eliminates the ability to 'damage' a GPU, because it will shut down or idle before it gets to hot to pop. But to the point, the fan profile would ideally strike a balance between noise and temperature. The first gen Keplars, GTX 670, overclocks itself by how much POWER it draws, so as long as it is falling UNDER its spec'd TDP, it will continue to overclock, and as a result, heat up. the newer cards with the GPU boost 2.0 works off of temperature alone. the difference is this: your GTX 670 with its fan CRANKED to 80% or 100% will easily be able to hit its TDP power draw (that you set in the OC software) and keeps its temps low, but the noise will be CRAZY, so you could possibly slow the fanspeed down and still hit the TDP you want. depending on how its set in EVGA PreX, if you have the power set to 100% that should be a piece of cake to hit max speeds
The newer GPU Boost 2.0 like in the Titan and 700 series runs strictly on temps, it will overclock until it hits 80C or whatever, so turning the fans up might change the way the OC can run
I guess my point is, you don't have to run the fans that aggressively because 80C isn't going to hurt the card, you just gotta find out what power % your card can hit its max clock AS WELL as the optimum temps. 68C is really really good and you are boosting your performance to the max but you could probably notch it down, lower your noise, and still hit the same clocks speeds, at say 77C.
sure, the card will last longer at lower temps, but your fans won't and most people upgrade long before their cards hit the duty cycle
that was a lot of words to say, if you have your power limit in precisionX set to 100%, there's really no need to force the card to run 68C unless that's really just want you want. if you want to bump it up to say 120% (which is very aggressive) then you can start forcing fan speed increases
Dry