Fan Direction???

Mulch

Member
Nov 24, 1999
44
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I have an AT style mid-tower. Which way should the fan at the bottom of the case blow - in or out??
Keep in mind that the CPU is right behind it.

Thanks
 

bacillus

Lifer
Jan 6, 2001
14,517
0
71
IMO,it should blow in. That way, it will help cool the cpu by providing cool air to the h/sink/fan combo & as hot air rises be removed at top via the psu.
 

cockeyed

Senior member
Dec 8, 2000
777
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I would have it suck the cooler heavier air IN from the front bottom and have the lighter warm air sucked OUT by the power supply fan at the rear top. This way you would have a nice natural flow of air through the case.
 

ZeroBurn

Platinum Member
Jul 29, 2000
2,892
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definitely in

it's designed so you snag cold in in the front, low, and push it through your case through your CPU, etc and have the hot air raise out the rear exhaust and/or PSU exhaust.