Which way does psu move air.

blitzyuk

blitzyuk

blitzyuk

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Tamworth
Hi all

Just wanted to know which way should a psu be sucking air as mine is mounted at the bottom of my case with the fan at the bottom. As my system is setup to draw air from the rear and leave at the front should it be sucking air from the case out the back or sucking air into the case then out to the front.

I know if i was to change the fan around in the psu it will void my warranty on it.

So any ideas.
 
Its due to me having the Corsair H50 mounted at the rear of my antec 300 bringing cool air into the case as its an overclocked system from OcUK.
 
Well Corsair recommends having the H50 as an intake at the rear drawing cool air from the rear of the case. I do have a 140mm fan at top as exaust and find my system is much cooler with the way i have the airflow setup now.

I also have a 120mm side fan as intake for graphics card and 2 120mm fans at front as exaust also cooling HDD's

*edit*

OcUK pre-built the system for me so thats how the H50 was mounted.
 
I didnt have any installed at front just roof fan and h50. My HDD's and GPU's are about 5 degrees cooler with the way it is setup as to having air coming in from front. If i have the psu fan with the air coming out the back of the case then it will just circulate round as it will just come back into the h50.
 
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I could try it with front fans as intake but what about side fan, wouldnt there be no circulation of air only exaust out of top and psu.
 
ok side fan is intake already. my point being that it is more cooler at the rear of my case due to it being next to window. So if i had it as air coming from front and out the rear. where will the cool air be from. wouldnt that just defeat the object of colling down the components.

That was the way OcUK set it up for me with psu fan at bottom. And H50 as intake and roof as exaust.

Thats why im getting confused and asking for advice.
 
Actually it is sought of. My room is situated at the end of a terraced house and since we have had all the cavity walls insulated and loft it has got a lot more warmer in here. It also doesnt help having the sun on the side of the house for most of the day. My window is open all the time as its the only way i can get cool air in.
 
So what your saying is that i should have my sytem setup as having 2 front fans as intake, Side fan as intake. top and rear as exaust and psu mounted with fan at top drawing air out the back.
 
Ok thanks ive changed all my fan configuration now.

I now have 2 front intake and 1 side intake, Top exaust and rear exaust through H50.
Unfortunatly i cannot have my PSu facing up at the moment due to the 8pin mobo connector not being long enough so will have to get an extension cable for it(this is due to having 2 graphics cards in crossfireX and wont stretch over or under them. So psu will have to stay with fan at bottom for the time being.

Havent noticed much of a difference in temps only HDD's are a bit lower now. CPU and GPU's are still same temp.

Mayfair

Did your case come with 2 tri-cool fans the 120mm and 140mm?
 
ok see i only had the 1 top 140mm i guess the guys at OcUK took out the other 120mm and left me with the corsair H50 fan instead. I would have liked that 120mm antec tri-cool fan cant seem to get hold of any black ones now only colored led ones, all these fans are out of stock on website.
 
I cant turn psu round other way due to 8pin cable being too short and not having an extension cable ive had to leave it with fan facing bottom. The psu sits on a riser and there is about a cm gap between psu and case (i know this as i have had a cable for a blue case light underneath it) it does feel as if there is air being pushed out of psu and with the 2 front fans now as intake it should be getting air. I could mount an 80mm fan with usb connector to the outside of psu just temporary to aid in airflow. Like i have stated before this case is part of an OcUK overclocked bundle and it is how it was setup by them so psu was already mounted that way.

I will message them about 120mm tri cool fan.
 
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All sorted now got extension cable so fan on psu is facing upwards, Temps are pretty much still the same just the odd 1 or 2 degrees difference.
 
Is that small pic to hide the cables lol.

Well i have re routed the extension cable now so wont be changing it back i could always buy some mesh to put over it just incase of any debris falling in.

How you finding the Antec 300 thats how i had my 8pin mobo connector before straight up mobo. now got it upside of expansion slot covers and under rear fan good thing about having those little holes at back can just get cable ties through.
 
This is how it is setup mine has larger motherboard than yours plus looks better with the cable re-routed up the side of the expansion slots and under the H50 fan.
DSCF2772.jpg

Cable management is a bit better now but would still like a cover or something to hide them. Thats the only regret i have with the Antec 300 the cable management sucks.
 
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