One or two fans, front and back of a single fan width cooling radiator.

Phillip Gwynne

Phillip Gwynne

Phillip Gwynne

Associate
Joined
22 Dec 2018
Posts
40
I’ve had a system built around an Asus Z370-G board, Intel 9900k cpu, Samsung 970 pro SSD, 64gb Corsair vengeance ram 3,2000. EVGA 750w psu and EVGA RTX 2080 gpu. I’ve had this set up for three years now and quite happy, although realising that I cannot run games on high graphics settings in 4k. But one thing I wish I could find info on is. The case came with three front fans that don’t spin fast and one rear fan high up. I brought a Corsair h80 cpu cooler with is single fan radiator and it comes with its own fan. So I thought, why not use existing fan to suck the air out the radiator and the new one to pull air into the radiator. Is this better. Only other option is to mount radiator and fan onto top of case and use original case fan just to exhaust. My only issue is the fans do speed up a lot when temp is around 60c and takes a while till fans slow down. The cpu is overclocked to 5.1ghz. Did manage it at 5.2ghz but some games would crash. But just browsing net, files worked quite well but cannot get it back at that speed. Are there any good guides for beginners with cooling?
 
setting up push pull doesn't make it run cooler, with the fans on full the difference would be one or two degrees.
however it dose run quieter, it make the same level of cooling as a lower RPM it just doesn't have a better peak cooling.

if you dont have room for a 240mm or bigger cooler then a good air cooler would be best..
if you set of keeping the 120mm cooler then yes push pull would be better than a single fan set up.
also have the rad placed to pull air in from the outside so its getting the coolest air it can
 
push 120 vs pull 120 = identical
push 120 + pull 120 > push 120 or pull 120
push 120 + pull 120 < push 240 or pull 240

Doesn't do any harm to use it and non-identical fans isn't a big problem. Try it and see if it helps.
 
MikeTimbers said:
push 120 vs pull 120 = identical
push 120 + pull 120 > push 120 or pull 120
push 120 + pull 120 < push 240 or pull 240

Doesn't do any harm to use it and non-identical fans isn't a big problem. Try it and see if it helps.
Click to expand...
Thats very flawed. Push performs way better than pull. Physics 101.
 
Bencher said:
Thats very flawed. Push performs way better than pull. Physics 101.
Click to expand...

every test you will ever see shows that push vs pull is as close to identical as the testing can show. Depending on the fan's static pressure and the radiator FPI you may see a degree either way where push may "win" at one rpm and "lose" at another which is inside the margin of error. It is purely an aesthetic choice.

personally I prefer pull for one simple reason: its easier to clean the rad as the dusty side is exposed.
 
MikeTimbers said:
overall radiator size beats number of fans. A 240 rad with two fans is way better than a 120 with two fans.
Click to expand...

well yes that a no brainer, that why i said if the OP can he should get 240 or bigger cooler.

i just didnt understand what the was all about but i get it now
 
The only scenario where a push pull would help is with very thick radiators (60mm plus) or some peculiar high fin density medium thickness radiator.
The thicker radiators would, almost as rule, require high fan rpm to perform well and fans at high rpm are loud, no exception. Push pull would help here. Same applies for medium thickness high fin density radiators.
Thin radiators, not worth, as gains are at best 1 or 2C.
If that 1 or 2C are crucial, you're cutting close and need either better airflow or more rad area.
To check if airflow is the issue, remove side panels and any filter/panels affecting fans.
 
You must log in or register to reply here.
Back
Top Bottom