Psu fan intake or exhaust. If you had to choose one thing intake our exhaust – exhaust is the way to go. Most PSUs suck aiir in from the bottom and exhaust it out the back of the PC. This fan works as an intake fan for the PSU that sucks in air and blows it on the components inside the PSU where then it exits from the rear vents of the power supply. PSU fans will always exhaust out of the back of the PSU. If the PSU is at the bottom of the case the fan should point upwards and vice versa.
You dont want it sucking in the hot air from inside your machine. If a ps has one fan it is acting as an exhaust. Arboreal 15 Dec 2021 at 1133. If you had to choose one thing intake our exhaust – exhaust is the way to go. With top mounted cases then the psu becomes exhaust since its intake will be inside the case.
This can lead to a hot. My case the NZXT H700 has a similar layout only without a mesh front.
If you put it in with the fan facing upinside case -it will constantly pull hot air from the case out and through itself.
Add a fourth bottom fan later if you need it.
It looks like the PSU chamber doesnt have much in the way of airflow from the top so the PSU may not be colled as well as it could be with the fan facing down to the filtered intake in the base.
Add a fourth bottom fan later if you need it.
I would use two front 200s which will probably be quieter than three 140s and one rear 140.
A front intake fan provides some help but the CPU continues to output heat saturating the area near the CPU. Not sure what bugs you so much. If you put it in with the fan facing upinside case -it will constantly pull hot air from the case out and through itself. Its intake at the bottom and exhaust at the back. I would use two front 200s which will probably be quieter than three 140s and one rear 140.
With top mounted cases then the psu becomes exhaust since its intake will be inside the case.
So if you have the PSU fan facing your motherboard it will intake air from the interior of the case then exhaust it out the back.
Some older and cheaper Power Supplies come with an 80mm fan at the rear.
This makes the PSU be a separate circulation system that takes air from outside cool instead of sucking in warm air from your case and exhausts it outside warm.
If it has two the one on the outside of the psu is an exhaust the one on the ps that is inside the case will be an intake usually.
So if youre talking about overall case flow its neither.
