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PSU Cooling Idea/Question

O

oz0

Member
Is it a good idea/possible to turn upside down a PSU (Obviusly talking about one whith at least a 12cm fan)and make a mod in the case so it can get air from outside the case? I thought about hot air going up and maybe i could invent also something to prevent the hot air exhausting by the PSU to re enter it by adding a flap or something like it...

What do you think? It is possible to turn upside down a PSU or it is just not recommended to make its components to work upside down?

Thanks 4 any reply
 
Thanks a lot, i read it and they're arguing about it so i'll keep track about that one.

I'm sorry about not founding that thread before opening a new one
 
Like i said in that thread.

Technically there is no top or bottom of the PSU. It can be oriented in any manner and will not effect the performance of the unit. Many cases now allow you to orient the PSU with either the fan facing up or down. So long as there is plenty of space for the fan to draw air in you are fine.
Click to expand...

Unless you have a PSU that is water cooled and needs to be in a certain orientation there is no up or down for the PSU. If the case allows the unit to be mounted in different directions then fas the fan in whatever direction gives it the best air flow.
 
Originally posted by: oz0
Thanks a lot, i read it and they're arguing about it so i'll keep track about that one.

I'm sorry about not founding that thread before opening a new one
Click to expand...

I wouldn't worry too much about not catching a 4 month old thread.

Especially since no one in that thread (or this one) actually addressed a major component of your question; drawing air in from outside the case.

So here's the long and short of it. The electronics in the supply don't care which way is up. Allowing the supply to draw air from outside the case (which is typically cooler than what it would otherwise be drawing in) will let it cool itself more efficiently and stay cooler. This is a positive. The air it draws in will still be a touch warmer than ambient because it will tend to draw in some of its own exhaust, but I doubt this would be a large effect.

However, the overall effect on system cooling may be problematic. If the power supply's fan is acting as the main exhaust fan for the system (which is, all told, very common), then taking it "out of the loop", so to speak, will be bad for the temperatures of other devices in the case. This is a negative. More/better exhaust fans can resolve this issue.

There are in fact external power supplies (that one is made by Seventeam) that are intended to take advantage of this same concept.
 
Actually there is nothing problematic at all!
Providing you have a rear exhuast fan and proper air flow!
I would never consider the PSU fan to be anything other than a PSU fan!

If you have it blowing air back into your system then you really need to have a rear case fan to keep that air moving!!

Peace!!
 
Originally posted by: JEDIYoda
Originally posted by: Aluvus
Originally posted by: JEDIYoda
If you have it blowing air back into your system
Click to expand...

what
Click to expand...

use your head...
Click to expand...

Already tried, still couldn't figure out how having a power supply fan blowing "back into your system" has anything at all to do with this thread. Hence,

what
 
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