Sign in with
Sign up | Sign in
Your question
Solved

Differences between having a power supply fan facing up and fan facing down

Tags:
  • Speakers
  • Desktops
  • Fan
  • Power Supplies
  • Components
Last response: in Components
Share
December 30, 2013 3:02:31 AM

It will go at the bottom of a large gaming case.

More about : differences power supply fan facing fan facing

a b ) Power supply
December 30, 2013 3:20:02 AM

Generally, you want airflow in your case to go up and out the back. Because of this, you should mount the psu so the fan is on the bottom so it's intake fan draws cooler air from outside the case and also helps keep air moving up and to the back.

Also, if your case came equipped with some sort of filter at the bottom of the case where your psu will go, that is there to filter the incoming air if you orient your psu fan facing down.
m
0
l
December 30, 2013 3:25:51 AM

Hot air goes up, so its better to face your fan at the bottom, it will suck cold air from the bottom and blow out hot air to the back of the case :) 
m
0
l
Related resources
December 30, 2013 8:32:35 AM

fudoka711 said:
Generally, you want airflow in your case to go up and out the back. Because of this, you should mount the psu so the fan is on the bottom so it's intake fan draws cooler air from outside the case and also helps keep air moving up and to the back.

Also, if your case came equipped with some sort of filter at the bottom of the case where your psu will go, that is there to filter the incoming air if you orient your psu fan facing down.


So is the fan on the powersupply is only to cool itself with cold air (facing down), or to draw hot air away from the graphics card if all fans suck air in and if the GPU gets very hot (facing up) but this way the computer cannot reach its maximum potential due to heat restrictions.
Have I got this right
m
0
l

Best solution

a b ) Power supply
December 30, 2013 9:54:04 PM

Backtothere said:


So is the fan on the powersupply is only to cool itself with cold air (facing down), or to draw hot air away from the graphics card if all fans suck air in and if the GPU gets very hot (facing up) but this way the computer cannot reach its maximum potential due to heat restrictions.
Have I got this right


The psu's fan is really only there to cool itself. If the fan were placed face-up, it would draw hotter air from the inside of the case. This wouldn't really affect the temps of the gpu/cpu that much. but would definitely affect the psu's longevity as it won't be cooled as well.
Share
!