Best fan speeds for push/pull

[GTdrewster]

Ok so I have a h100igtx water cooler and I just got in 4 corsair sp120 high performance fans and I ABSOLUTELY HATE THEM! They can only run at 100% 24/7 even with down voltage cable because they don't have the 4th pin for PWM and they are loud AF! so now I'm returning them and getting 4 noctua nf-f12 pwm 120mm fans. MY QUESTION IS what is the best rpm to run them at to be moving a good amount of air through but not loud and distracting. I was thinking the 900rpm setting but not sure?

[Ryoku]

Ok so I have a h100igtx water cooler and I just got in 4 corsair sp120 high performance fans and I ABSOLUTELY HATE THEM! They can only run at 100% 24/7 even with down voltage cable because they don't have the 4th pin for PWM and they are loud AF! so now I'm returning them and getting 4 noctua nf-f12 pwm 120mm fans. MY QUESTION IS what is the best rpm to run them at to be moving a good amount of air through but not loud and distracting. I was thinking the 900rpm setting but not sure?

 

Push pull is a waste unless your running your system CPU and GPU(s) at maximum (100% load) with fans running at maximum, that's the only way you will find any tangible difference in temps. otherwise you going to find yourself getting only a few degree difference with double the cost in fans.  If getting 2-5 degree difference is worth it to you then set your fans on a curve that is low at idle and ramps up to the speed you find acceptable.

[Lays]

Push pull is a waste unless your running your system CPU and GPU(s) at maximum (100% load) with fans running at maximum, that's the only way you will find any tangible difference in temps. otherwise you going to find yourself getting only a few degree difference with double the cost in fans.  If getting 2-5 degree difference is worth it to you then set your fans on a curve that is low at idle and ramps up to the speed you find acceptable.

 

Actually running them at 100% is usually where the benefits stop showing as much, because a single fan can usually get close to the same amount of CFM through the radiator.

 

Push/pull helps at very low to mid RPM, where a single fan usually struggles to move air through the rad/heatsink.

 

And "a few degrees" is a good thing lol

[tomas710]

Ok so I have a h100igtx water cooler and I just got in 4 corsair sp120 high performance fans and I ABSOLUTELY HATE THEM! They can only run at 100% 24/7 even with down voltage cable because they don't have the 4th pin for PWM and they are loud AF! so now I'm returning them and getting 4 noctua nf-f12 pwm 120mm fans. MY QUESTION IS what is the best rpm to run them at to be moving a good amount of air through but not loud and distracting. I was thinking the 900rpm setting but not sure?

Under 1000 you won't hear them, and, it's too much of personal preference to give you a specific number, just run them at different RPMs and see where you're comfortable. Keep in mind, even at 100% they won't go anywhere near as the noise of the corsair fans, since well, they are noctuas, and they run at lower RPMs. If you are doing push/pull i'd suggest using that airflow for the rest of your case, i have my H105 on the front on push/pull and it keeps my GPU cool as well

[Ryoku]

Actually running them at 100% is usually where the benefits stop showing as much, because a single fan can usually get close to the same amount of CFM through the radiator.

 

Push/pull helps at very low to mid RPM, where a single fan usually struggles to move air through the rad/heatsink.

 

And "a few degrees" is a good thing lol

 

sure a few degrees is nice, but is 2-5 degree's worth doubling your cost in fans?  Maybe if your pushing your system to the limit and you need that extra 5 degree's.

[Lays]

sure a few degrees is nice, but is 2-5 degree's worth doubling your cost in fans?  Maybe if your pushing your system to the limit and you need that extra 5 degree's.

 

2-5 degrees better in CPU coolers usually costs equally as much, and if you're already at the top of the line cooler and can't get any more performance, then it makes sense IMO.

 

Not to mention not all fans have to cost $20 like Noctua crap