case fans vs static pressure fans

[SmilesRising]

for my radiator i have some old case fans from an nzxt h440 and i plan on swapping them out for https://www.inet.se/produkt/5320057/corsair-hd120-rgb-led-3-pack-inkl-kontroller these. will there be a noticeable difference in noise and temps? or am i spending 70 bucks for fancy rgb fans?

[BlueChinchillaEatingDorito]

6 minutes ago, smiles rising said:

for my radiator i have some old case fans from an nzxt h440 and i plan on swapping them out for https://www.inet.se/produkt/5320057/corsair-hd120-rgb-led-3-pack-inkl-kontroller these. will there be a noticeable difference in noise and temps? or am i spending 70 bucks for fancy rgb fans?

Static pressure fans are optimized for pushing air threw constricted spaces such as the fins of a heatsink or radiator. Case fans are more optimized for pushing higher volumes of air from my understanding. It's basically pressure of air vs. volume of air.

 

You'll notice a difference between the two when mounted on heatsinks and radiators. Assuming you don't get deltas, noise should be relatively similar between the two. 

[SmilesRising]

2 minutes ago, BlueChinchillaEatingDorito said:

Static pressure fans are optimized for pushing air threw constricted spaces such as the fins of a heatsink or radiator. Case fans are more optimized for pushing higher volumes of air from my understanding. It's basically pressure of air vs. volume of air.

 

You'll notice a difference between the two when mounted on heatsinks and radiators. Assuming you don't get deltas, noise should be relatively similar between the two. 

okay, then maybe i should invest in a couple of fans just to have it optimized. the fans i have now doesn't really get the air through the radiator. at least it feels like that.

[Whaler_99]

The question is what solution is this? A cheap AIO? Then even with the best SP based fans you might notice maybe a 1 degree difference? Those rad's aren't every optimized. Or is this a custom water cooling loop with a decent 360 rad? In that case swapping out some cheap fans for some nice SP based ones could get you a few extra degrees. Now, that said, in the long run will that make a huge difference? What are your current temps? If after an hour of heavy gaming your only at say 65 or 70 C, then new fans might get you down to, at most, 60 to 65 C? Worth it? I don't know.  But, good SP based fans should certainly be quieter then your cheap ones at the same RPM.

[SmilesRising]

13 minutes ago, Whaler_99 said:

The question is what solution is this? A cheap AIO? Then even with the best SP based fans you might notice maybe a 1 degree difference? Those rad's aren't every optimized. Or is this a custom water cooling loop with a decent 360 rad? In that case swapping out some cheap fans for some nice SP based ones could get you a few extra degrees. Now, that said, in the long run will that make a huge difference? What are your current temps? If after an hour of heavy gaming your only at say 65 or 70 C, then new fans might get you down to, at most, 60 to 65 C? Worth it? I don't know.  But, good SP based fans should certainly be quieter then your cheap ones at the same RPM.

its a custom loop with an EK360 radiator (cant remember the exact name). the system is overclocked so if i could get it down by a few degrees than that would be nice. Are the corsair rgb ones any good? or do you have any suggestions that would fit my black/white color scheme?

[HarmInTrying]

You can see the difference in the fin orientation on high static pressure (HSP) vs high flow fans. HSP always have a shallower angle of attack and tighter fin placement; prevents air from flowing backwards through the fins. Verses the high-flow designs which feature a more aggressive fin angle and wider spacing... Almost like it's "throwing" air through the fan rather than "pressing" it like the HSP fans do.

I would presume HSP fans are higher in pitch than their high-flow counter-parts at the same RPM. The HSP fan "chops" the air more often, resulting in a higher frequency. All of my fans are SP120s from corsair. When it spins up to 100% (which happens when benching, and that's about it) it screams pretty good, but maintains good airflow through the thick rad, and piles of cat hair on my dust filter...

[Whaler_99]

I typically use Noctua NF-F12's, they are about the best in terms of SP and noise. There is Noiseblocker ELoop fans which are really good, the corsair SP lines are pretty good as well. Looks at their stats and compare it to the new Corsair ones. I'm not sure if the new RGB ones are more focused on pressure or air flow...

[SmilesRising]

19 hours ago, Whaler_99 said:

I typically use Noctua NF-F12's, they are about the best in terms of SP and noise. There is Noiseblocker ELoop fans which are really good, the corsair SP lines are pretty good as well. Looks at their stats and compare it to the new Corsair ones. I'm not sure if the new RGB ones are more focused on pressure or air flow...

i went all-in and bought noctua nf-f12s chromax. hopefully they will do what i need