push/pull config
- Thread starter Nessaja
- Start date
trawetSluaP
Member
I have the rear fan as an exhaust, sucking out hot air generated by my GPU.
MacLeod
New member
I spent a lot of time trying different configurations with all my fans and measuring temps and the setup that worked best for me was the front 2 running intake, one on the bottom as intake, the side fan as intake and the 2 fans for the H100 rad mounted on the bottom pulling in as intake and then the rear fan as exhaust.
This was counter intuitive to me cause I thought you shouldnt have so many fans running as intake and only one as exhaust but the back of my case is mesh so all the air is being pushed out the back. I can put my hand back there and feel it coming out.
The 200mm side fan worked much better as intake than exhaust. Saved me like 4C on my GPU during stress testing.
The H100 rad fans I spent the most time experimenting with. Tried them on top as intake, then exhaust and then on the bottom as intake and then exhaust but with them on bottom pulling air in worked the best by about 3C under OCCT.
I dont think this is universal though. My PC room is in my basement and its usually very cool down here. Even during the summer, its probably in the low 70's down here easily and maybe in the mid to upper 60's during the winter so me having such low ambient temps in my room might be why my setup works so well with so many intake fans. If I was in a hot room, then it might not work as well.
So try different configurations and run some different temperature stress tests and see which setup works the best. I dont think its a "one size fits all" kinda thing and may be unique to your rig, case and room conditions.
The intake fan on the bottom made no difference at all. I just happened to have a spare case fan lying around and wanted to use it for something.
This was counter intuitive to me cause I thought you shouldnt have so many fans running as intake and only one as exhaust but the back of my case is mesh so all the air is being pushed out the back. I can put my hand back there and feel it coming out.
The 200mm side fan worked much better as intake than exhaust. Saved me like 4C on my GPU during stress testing.
The H100 rad fans I spent the most time experimenting with. Tried them on top as intake, then exhaust and then on the bottom as intake and then exhaust but with them on bottom pulling air in worked the best by about 3C under OCCT.
I dont think this is universal though. My PC room is in my basement and its usually very cool down here. Even during the summer, its probably in the low 70's down here easily and maybe in the mid to upper 60's during the winter so me having such low ambient temps in my room might be why my setup works so well with so many intake fans. If I was in a hot room, then it might not work as well.
So try different configurations and run some different temperature stress tests and see which setup works the best. I dont think its a "one size fits all" kinda thing and may be unique to your rig, case and room conditions.
The intake fan on the bottom made no difference at all. I just happened to have a spare case fan lying around and wanted to use it for something.
KING_OF_SAND
New member
Always keep in mind physics. Heat rises, meaning you want as many fans as close to the bottom as possible pushing in air. You don't need as many fans for exhaust because the heat will naturally dissipate. So the exhaust fan should be used for exhaust and the 2 top fans are useless IMO, I like REALLY quiet computers. That top intake fan in front of your case is useless noise. It's so far at the top the cool air will disappear out the top before it even cools anything. Hell my computer has zero intake fans and only one fan for cooling the rad as an exhaust.
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Heat rising effects are negligable in moving air.
I have an H100i for my CPU mounted in the top as exhaust, have the rear fan as intake and the front fans as intake, but my 2 Blower type R9 290X are also exhausting a lot of air, so take that into consideration (Open GPU cooler or blower type)
MacLeod
New member
Agreed. Its true that heat rises but thats in a static environment. Heat will move in whichever direction its being pushed and a couple intake fans on the front of your case are more than enough to easily push the heat out the back.
Only having outtakes will result in really bad negative air pressure, meaning that air will be sucked in passively. This can cause alot of dust build up, making it something I would avoid.
Madmullen
New member
I have always used the bottom or front on the case for intake and rear and top for exhaust seems to get the best results,keeps my little Corsair Spec01 nice and cool.
There are 2 more fans in the front bezel so push pull config.
Have ordered some more fans 3 x AF120mm white led which I will be replacing the exhaust fans with.
There are 2 more fans in the front bezel so push pull config.
Have ordered some more fans 3 x AF120mm white led which I will be replacing the exhaust fans with.
