Side Window Fan

E

elmarcorulz

VIP Member
i bought a new case with a window fan. i left it the way it was so the air was bering sucked onto the cpu and was getting idle temps of 28°. but everyone i spoke told me to turn it the other way. so i did this and now my temps are a few degrees more, but they're still insisting i leave it like this. so i was wondering is it better for the pc like this, or should i just put it back to the way it came. thank you for your time.
 
Well

Man you should have left it as it was. This is because often side fans are made to bring in fresh (cooler) air into the case in places where it is most needed (your CPU for example). Now, you should have air intake fans like this one but aslo air out-take fans that should get rid of the warmer air inside the case. Make sure however that the layout is well thought out and that you do not create an even bigger problem by reversing airflow in places that need it most. Definitely put it back as it was, because it obviously cooled the CPU area better.

JAN :D
 
You should get a stream of air, while the rear fan is blowing cool air in, have the window fan pulling the hot air out, like Dave said.
 
mucho apreciado. i should of mentioned it first, but i have a fan at the front sucking thr air in, and 2 at the back blowing it out (is that right?). i dont know if that changes changes anything. btw my current set up is the side fan is blowing the air out of my case, and no matter what i do the temp never goes above 39°c. i mean playing games, converting videos and having music blasting really loud all at the same time, nothing will make the temp up, which i guess is a good thing. Any way thanks for the help. :)
 
suck the hot air out
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It really depends on the ambient temps. If you're ambient [room] temp is -12C then really, almost regardless of the case ambient temp, u'll want the cold air to enter the case moreso than the warm air to leave
 
most case setups involve a backward flow of air......as in case fans which are in the front of your case should blow toward the back, side fans should blow into the case, and all fans on the back of the case should blow out.....this is why all power supply fans blow air out of the power supply

*the key is a stream of air, from the front to the back of your case*
 
elmarcorulz said:
so i should have air blowing from the side fan onto the cpu?
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in most cases yes. like Praetor said sometimes if your ambient temp is insaely low/high then this might not apply.

Generally you want it like this...

Front - intake
Side - intake
Top "blowhole" - exhaust
Back and PSU - exhaust

With the same # of fans on each intake and exhaust this should make a pretty stable "wind tunnel" or vacumm in your system that keeps the air flowing.

Don't go putting 2 40mm in the front though and have 3 120mm's in the back. That isn't equal lol...and then you would have to use your top or something to even it out. You want as much air coming in as going out, that makes it to where you don't have air pockets or trapped air sitting in your case heating up and raising temps.
 
Yeah

Have to agree on the setup which has a front fan as intake, side fans as intake, top fan as out-take and the rear fans as out-take as well. I believe that that's the most suitable. Or even better, having a tunnel o blow air at the CPU.

JAN :D
 
so I should have air blowing from the side fan onto the cpu?
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Depends on the conditions ... i.e., how cold the outside air is vs how well ventilated the internals are vs how hot the internals are
 
the air outside is nearly always cold, the internals are cold, and the ventialtion is good. but if i put the side fan as an intake, wouldnt the air from the cpu fan be blowing out and cause, i cant think of the word, but they air would be pushing on each other
 
but if I put the side fan as an intake, wouldnt the air from the cpu fan be blowing out and cause, I cant think of the word, but they air would be pushing on each other
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If you have a somewhat standard configuration you shouldnt have too much of a problem because:
1. The rear exhaust fans will have "first access" to that hot air (and thus tend to prevent a warm/cold front from being created)
2. Even if there is a front, that will have a tendency to keep the war air closer to the CPU (and thus closer to the rear exhaust)
3. Try it and see if there is a difference :)
 
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