Best way to position fans???

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Best way to position fans???

Postby jmstacey » Sat May 25, 2002 7:31 pm

My case has 1 fan in the front, 1 in the back(not ps), and 1 on the side. How is the best way to position these for maximum airflow. Like the front in, the back out and the side???
Thanks, for answering this reletively simple question :oops:
-Jon-
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Postby Tolemac » Sat May 25, 2002 8:54 pm

It's only simple once someone has told you the answer. :wink:

Case fan in front blows cool air INTO the system. Case fan in back blows hot air OUT of the system. Case fan on side blows cool air INTO the system. 8)
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Postby Flyin » Sat May 25, 2002 10:13 pm

Hey Toley do you use a side fan blowing on the expansion slots? And are fans on the top generally intake or exhaust fans?
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Postby len444 » Sat May 25, 2002 10:28 pm

:arrow: :idea: cold air settles, hot air rises- so the upper fans, which are at the rear of the case must be orientated to exhaust the hot air out!!! :wink:
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Postby Tolemac » Sun May 26, 2002 1:47 am

Flyin wrote:Hey Toley do you use a side fan blowing on the expansion slots? And are fans on the top generally intake or exhaust fans?

Side fans are generally used to blow more cool air to the CPU and video card area of the case. Top fans are always exhaust. As len pointed out, heat rises. 8)
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Postby len444 » Sun May 26, 2002 8:06 am

:arrow: :idea: i see the side fan as being very beneficial to get air flowing in an area of the case that air flow could stagnate (lower bottom, rear corner), and obviously great at getting a fresh blast of cool air over cards/cpu like tolemac said (esp. as cards are horizontally orientated, which restricts the air flow around the cards)- general rule is to have the same # of case fans performing intake, and exhaust w/o counting the power supply.
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Postby Flyin » Sun May 26, 2002 8:17 pm

10-4 rubber duckies. Thanks for the clerification 8)
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Postby Wudce » Mon May 27, 2002 4:40 am

This might seem strange but what ever works use it. I found after some tesing that my rig runs afew deg cooler with my rear fan sucking in air and that's because of my PS having that exter fan on botton you see cool air is suck in and flows over CPU HS cooling it at same time PS fan on botton suck this warm air back out very nice flow. I have the normal 80mm fan in front sucking air as well as a slot fan under my G-Force 3 card helping to suck the warm air off it. Like I said I found my rig runs 4 deg cooler like this :idea:
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Postby Tolemac » Mon May 27, 2002 12:52 pm

Unfortunately Wudce, not everyone has a power supply with a botton fan on it. If it does work for you, then that's great, but for those with regular power supplies, they have to have the back fan(s) blowing out. 8)
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Postby Wudce » Mon May 27, 2002 6:52 pm

Yes I understand that guy was just pointing this out :)
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