I have 8 case fans blow in or out, help?

February 28, 2011 at 17:59:35
Specs: Windows 7
I have a large midtower case that has 2 fans blowing in the front, blowing in. I have 4 blowing air in on the side. These 6 fans are week and move 20-30 cfm. I have an additional fan in the back at the top that moves 250 cfm and it blows into the case. The fan on the top moves 150 cfm. The two strong fans are hooked to a fan controller and seems to cool well. Just wondering if their would be a more efficient way of configuring the fans.

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#1
February 28, 2011 at 18:01:49
The 6 weak fans on the side and front also blow air into the case. All fan spots have a fan and there are view vent areas.

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#2
February 28, 2011 at 19:06:48
Front fans are ok, the side fans do more harm than good and the rear fan needs to blow OUT NOT IN

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#3
February 28, 2011 at 19:27:10
More fans! More fans! More fans! WooHooo!!!

Now read this:

PC airflow and heat – a cooling guide


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Related Solutions

#4
March 1, 2011 at 01:16:02
you need flow.....all your fans point in........the idea is to have flow that goes in from the front and out through the back, cooling and removing hot air from inside the case.

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#5
March 3, 2011 at 07:18:55
All that's required is a single exhaust fan in the rear, maybe two - it depends on the capacity of the fan & how paranoid you are about temperatures. Anything else is overkill.

Do the math. How big is your tower - maybe 1.5' x 1.5' x 0.75' ? That's less than 2 cubic feet. Using 2 CF for easy math, a single 250CFM rear exahust fan, will completely refresh the air in the case 125 times per minute. Now ask yourself, do you really need more airflow than that? Read the article I posted in response # 3.


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