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Position of cooling fans

by ginodave / July 19, 2010 1:43 AM PDT

I have a confusion regarding placing cooling fans.
I have the following fans connected to my system. I want to know if their positions are correct or i need extra fans to cool my system.

1) 120mm lower front intake fan

2) 80mm side case fan (upper sucking air in greater RPM)

3) 80mm side case fan (below upper side case fan exhaust reduced RPM compared to upper side fan)

4)one CPU fan towards heat sink

5) PSU fan which is sucking air from near the CPU heat sink block and there is an open went to outside through which air is exhausted.( PSU is located on top rear corner of the case)

6) 80mm cooling exhaust fan just below psu (there is a 120 mm vent below the PSU. i placed a 80mm CPU fan there )

MY computer's idle temp is around 43-45 degree C
and during games like test drive unlimited, it is around 59-61 degree C

is that normal temp and if ne extra cooling is required?

the side exhaust fan is facing the video card (Nvidia 9600 GT). i thought it could remove heat from it.

link to my CPU setup image is below

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Cable management
by WeaponEVO / July 19, 2010 2:42 AM PDT
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by ginodave / July 19, 2010 4:12 AM PDT
In reply to: Cable management

But cables coming from PSU are short so cant make it go through somewhere else so that there is no blockage of air flow

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Modular power supply
by geognerd / July 24, 2010 2:48 PM PDT
In reply to: cables

It sounds like your temperatures are OK. I'd change the side fan so it blows out. I think removing hot air is more important than bringing in cool air (you already have an intake fan in front), but that's just my opinion.

Take a look at a modular power supply, though. That will let you use only the power cables you need, instead of having a bunch of extra cables hanging out of the power supply that you aren't going to use. You could end up with fewer cables hanging around blocking airflow. Cable management can be tough, but your cables do look pretty messy.

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Fan arrangement
by Willy / July 19, 2010 2:44 AM PDT

The std. rule I use is frt. fans, IN, rear fans, OUT. Any other fan location which ever seems to work best. Usually top case fans, OUT, side, OUT. In your case, you have it both ways. While, you're cooled well it seems, you may also be causing "tubelance" of the airflow, you want it to work in unison for best effects, so it maybe a telling effect over time. Temps so go up as increased game play is causing the upper demands of use, that's normal. However, as stated, over time you find what works best for you. I would change that rear fan, for 120mm which the outlet seems ready for.

tada -----Willy Happy

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Is the temp
by samkh / July 19, 2010 2:50 AM PDT

measurement of ambient inside case or of the CPU? I suspect it's of the CPU or else CPU would've shut down. C2Q is ok at <=60C.

When you have funds, start over with a gamer case where PSU is at the bottom and exhaust fans are on top. Front intake only useful if you have a huge stack of HDDs. Side intake cools PCIe and PCI. Rear exhaust only necessary if top fans not present.

Also larger (120mm and above) fans move more air at slower and quieter speeds. Forget 80mm - faster, noisier, shorter lifespan.

Go to case mfr sites to learn more.

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6 fans?
by Dango517 / July 23, 2010 10:20 PM PDT

The only way to know if you have enough fans or that they are in the right location is to check the specifications on your maximum limits on your CPU and GPU. If you fall below these specifications under all conditions then everything is A-OK. I'm pretty certain 6 should do it.

To help you determine this try this software:


Have you determined if you have enough power for all those fans and whatever else you have attached to that machine?

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Ducting and cables
by mjd420nova / July 24, 2010 1:41 AM PDT

Bundling cables together can help air flow throughout the case. Sometimes even mounting small cardboard panels can help direct airflow into crucial areas and direct cooler air into areas where it might be otherwise blocked.

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You might up grade your CPU cooler
by Dango517 / July 24, 2010 3:17 PM PDT
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