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Fan orientation

post #1 of 15
Thread Starter 
So i got this :
[URL=http://img855.imageshack.us/i/screenshot20110323at355.png/][/U
should i put the fans pulling or pushing?
post #2 of 15
The very best setup would be to have a push/pull with fans on either side. If you can't do that then pushing, after that then the very least efficient but sometimes the only option is pulling.
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post #3 of 15
Thread Starter 
Quote:
Originally Posted by railfan844 View Post
The very best setup would be to have a push/pull with fans on either side. If you can't do that then pushing, after that then the very least efficient but sometimes the only option is pulling.
so there are 3 fans, 2 of them pushing and then middle one pulling ?
post #4 of 15
I cool a i7-930 with that EK block and 3 .31 amp Sun Ace 120's pushing through a Black Ice Gen Two GTX360 and I do not see how having 3 additional fans could possibly make temps lower.Highest I have seen temps is 66C at 4.0GHz 1.31v ambient 95F. Now I have another i7-930 with the Koolance 360 block and a push pull setup on a Swiftech Stackable 360 rad and that cpu will hit 73C sitting right next to it's much "cooler" brother.
Both temps are OK considering the high ambient. If ambient is kept in the low 60's the performance is pretty equal.
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post #5 of 15
Thread Starter 
Quote:
Originally Posted by PCCstudent View Post
I cool a i7-930 with that EK block and 3 .31 amp Sun Ace 120's pushing through a Black Ice Gen Two GTX360 and I do not see how having 3 additional fans could possibly make temps lower.Highest I have seen temps is 66C at 4.0GHz 1.31v ambient 95F. Now I have another i7-930 with the Koolance 360 block and a push pull setup on a Swiftech Stackable 360 rad and that cpu will hit 73C sitting right next to it's much "cooler" brother.
Both temps are OK considering the high ambient. If ambient is kept in the low 60's the performance is pretty equal.
im taking about the fans that you attach to the radiator..
post #6 of 15
In my opinion, good compromise between cooling and noise is to have 3 fans pushing.
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post #7 of 15
Low speed fans do slightly better in pull according to Martin's testing

As for intake vs exhaust, that is a whole other, much debated, topic.

Intake: Cooler air going through the rads, therefore cooler water. However warmer air going into the case, therefore warmer ancillary components (Ram, Mosfets, North / South bridge etc)

Exhaust: Warmer air going through the rad, therefore warmer water. however heat expelled from the case, therefore ancillary components run cooler.

Personally I prefer exhaust, as I am cooling both the CPU and GPU most of the heat generated by my PC is going into the water, therefore my case temps are not much higher than the ambient.

If you have good airflow in your case it is not going to make a huge difference either way.

Oh, and:
VVV Number 3 VVV
Edited by GingerJohn - 3/24/11 at 9:40am
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post #8 of 15
Thread Starter 
so if i install it like this guy: http://img94.imageshack.us/img94/3976/61071676.jpg on the bottom of the radiator the air from the fans should be going up? right
post #9 of 15
Thread Starter 
Quote:
Originally Posted by GingerJohn View Post
VVV Number 3 VVV
mine are low speed so pull... umm so by looking at this pic: http://img94.imageshack.us/img94/3976/61071676.jpg the air flow should be going down.. towards the cpu?
Edited by supermiguel - 3/24/11 at 9:37am
post #10 of 15
Quote:
Originally Posted by supermiguel View Post
so there are 3 fans, 2 of them pushing and then middle one pulling ?
No dude, push pull refers to having 6 fans, 3 on either side of the rad.
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