Case side fan should blow in or out?

DesiPower

Lifer
Nov 22, 2008
15,299
740
126
I have a Antec 300 case, with two front 120mm intake one rear 120mm exhaust and one top 200mm exhaust. All fans run at under 1000 rpm and temps stay pretty cool.
There is another window on the side for another 120mm fan. I just bough a CM 120mm 4-pack from Amazon for another computer, great deal btw, I have 2 left over, I was thinking about putting one on this Antec 300 case, question is, should is blow in out blow out. Other fans in the computer are 120mm CPU cooler and whatever comes stock on the HIS 6850.
 

aigomorla

CPU, Cases&Cooling Mod PC Gaming Mod Elite Member
Super Moderator
Sep 28, 2005
21,086
3,593
126
depends on the sink.... and where u have fans up front.

But 75% of the time as Sandorski says.. its in.
 

Skott

Diamond Member
Oct 4, 2005
5,730
1
76
+2 for in. The side port for that case is located to blow onto GPU area which is a good thing.
 

BoomerD

No Lifer
Feb 26, 2006
66,356
14,769
146
I prefer to have the side-case fan blowing in to provide cool, fresh air to the GPU and CPU.
 

fffblackmage

Platinum Member
Dec 28, 2007
2,548
0
76
In, so the air can keep the VRMs cool. The Antec 900, in particular, doesn't seem to have enough air intakes anyways.