Power supply fan facing side ? a problem ?

northZephyr

Junior Member
Apr 17, 2008
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0
Hi
Just a little thing I noticed when completing my build :

THe power supply I chose Corsair 620HX Link

must fit in to the case I chose : Antec 900 Link

But the case offers a bottom-PSU socket... is there going to be a problem if I place the PSU upside down so the fan could face upward ? ('cause reading comments, many ppl say the fan is facing downward...

Thx
 

PurdueRy

Lifer
Nov 12, 2004
13,837
4
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Originally posted by: northZephyr
Hi
Just a little thing I noticed when completing my build :

THe power supply I chose Corsair 620HX Link

must fit in to the case I chose : Antec 900 Link

But the case offers a bottom-PSU socket... is there going to be a problem if I place the PSU upside down so the fan could face upward ? ('cause reading comments, many ppl say the fan is facing downward...

Thx

Turn the PSU "upside down" and magically the fan will face upward.
 

jonnyGURU

Moderator <BR> Power Supplies
Moderator
Oct 30, 1999
11,815
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Exactly, unless the PSU is liquid cooled, gravity has no effect on it. ;)

Flip it around so the fan points up.
 

HOOfan 1

Platinum Member
Sep 2, 2007
2,337
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Originally posted by: Scoop
I'd rather cut a hole in the case below the PSU than turn it upside down.

why? Other than the logo being upside down it makes no difference.
 

jonnyGURU

Moderator <BR> Power Supplies
Moderator
Oct 30, 1999
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Originally posted by: HOOfan 1
Originally posted by: Scoop
I'd rather cut a hole in the case below the PSU than turn it upside down.

why? Other than the logo being upside down it makes no difference.

Exactly. Why? So it can suck up dust bunnies off the floor?

The PSU would be sucking in cooler air since it wouldn't be sucking in off the graphics cards, but if you have a decent PSU it shouldn't make any difference to it's output capability or longevity if you have an appropriately sized PSU to begin with and case temps don't exceed 40°C.
 

imported_Scoop

Senior member
Dec 10, 2007
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Originally posted by: jonnyGURU
Originally posted by: HOOfan 1
Originally posted by: Scoop
I'd rather cut a hole in the case below the PSU than turn it upside down.

why? Other than the logo being upside down it makes no difference.

Exactly. Why? So it can suck up dust bunnies off the floor?

The PSU would be sucking in cooler air since it wouldn't be sucking in off the graphics cards, but if you have a decent PSU it shouldn't make any difference to it's output capability or longevity if you have an appropriately sized PSU to begin with and case temps don't exceed 40°C.

Well that was my point in the matter. Maybe a full-blown hole is a bit too much but some smaller ones for the PSU to breath through. I clean my apartment pretty often :)

Has it been tested that it has no effect? I just thought that it MIGHT trap some air inside the PSU as the airflow isn't designed for the PSU to be upside down and the hot air would try to escape through the fan.
 

jonnyGURU

Moderator <BR> Power Supplies
Moderator
Oct 30, 1999
11,815
104
106
Originally posted by: Scoop
Originally posted by: jonnyGURU
Originally posted by: HOOfan 1
Originally posted by: Scoop
I'd rather cut a hole in the case below the PSU than turn it upside down.

why? Other than the logo being upside down it makes no difference.

Exactly. Why? So it can suck up dust bunnies off the floor?

The PSU would be sucking in cooler air since it wouldn't be sucking in off the graphics cards, but if you have a decent PSU it shouldn't make any difference to it's output capability or longevity if you have an appropriately sized PSU to begin with and case temps don't exceed 40°C.

Well that was my point in the matter. Maybe a full-blown hole is a bit too much but some smaller ones for the PSU to breath through. I clean my apartment pretty often :)

Has it been tested that it has no effect? I just thought that it MIGHT trap some air inside the PSU as the airflow isn't designed for the PSU to be upside down and the hot air would try to escape through the fan.

You using forced air to begin with, so the "hot air rises" theory doesn't apply. The air is going to push out the back with the fan up just like it would with the fan down.