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All fans going out, all in, or out and in? - Page 2

post #11 of 26
Try having the same amount going in as out. Also try having the intakes lower on your case than any out's. My case has 4 80mm fans going in, two from the side bottom and two in the front bottom. I have three in the back (two just below the PSU and one from the PSU) and one in the center top of my case all blowing out.

If you have more intakes than out's then you may get into a situation where some of the fans work harder than the others to either keep up or its causing pressure inside the case. If you can't match the same fans going in and out try to match CFM's, in otherwords if you have 2 80mm fans going in and only have one fan for out say 120mm try to have it match the CFM the two going in can do.
post #12 of 26
Thats because your creating negative pressure in your case, if you had a higher cfm exhaust fan or another exhaust fan , they would go down.

i have an 80 in the front sucking in
an 80 on the right side blowing on my hard drives
a 120 on the side blowing on my mobo and cpu
and 2 120mm for exhaust .

anyone will tell you the setup i described in my earlier post is standard.
    
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post #13 of 26
Hmm... This discussion makes me wanna go and flip my side intake fan to outtake just to see if I get a change...

We should all do it as an experiment and report results
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post #14 of 26
ok

the front of my case (4x5.25) bays where CD/DVD drives would go are just mesh, what difference will this make to my temps?? should i be putting a 120mm fan in that space?
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post #15 of 26
Quote:
Originally Posted by tUDJ
ok

the front of my case (4x5.25) bays where CD/DVD drives would go are just mesh, what difference will this make to my temps?? should i be putting a 120mm fan in that space?
Well yea one of those Scythe Kama Bays would definately improve your cooling! You want to exhaust hot air for sure, but make sure your drawing in enough cool ambient temp air as well!

What is good to do is take the CFM of all your exhausts and try to match the intake to it or have a higher CFM intake level.
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post #16 of 26
Thread Starter 
Quote:
Originally Posted by burnstudios
Uhmm no... you want cool air blowing over the fins of the heatsink.
are u sure, cause even from the factory they have heatsink blowing air away
    
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post #17 of 26
Quote:
Originally Posted by TrueNoob
are u sure, cause even from the factory they have heatsink blowing air away

uhhhhhh.

No they don't. lol
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post #18 of 26
Ya mines stock and the cpu fan is sucking air away from cpu... :/
    
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post #19 of 26
Thread Starter 
Quote:
Originally Posted by tUDJ
ok

the front of my case (4x5.25) bays where CD/DVD drives would go are just mesh, what difference will this make to my temps?? should i be putting a 120mm fan in that space?
in the front of mine i put a 80mm in 2 bays, lowered my temps down by 10c
    
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post #20 of 26
Thread Starter 
Quote:
Originally Posted by Sideburns
uhhhhhh.

No they don't. lol
this one, the fan cant even blow at the heatsink :/

i have no fan for the HDD, it never passes past 25c and it barely ever gets to 25c
    
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