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Washington 07-26-2006 10:33 AM

CPU Fan?
Just checked my CPU fan and it is sucking air away from the CPU. Is this correct? Or should it be blowing air towards the CPU?

I would have thought the latter, but want to check with you guys before I change anything.

joxley1990 07-26-2006 10:46 AM

Re: CPU Fan?
It should be blowing air onto the heatsink/CPU.

Washington 07-26-2006 10:56 AM

Re: CPU Fan?
Yeah that's what I thought. Time to get the screwdriver out then.

Thanks for the help

lhuser 07-26-2006 11:27 AM

Re: CPU Fan?
Usually, here's how you should input ANY fans

(And yes, the CPU fan is in the wrong direction, but it won't affect overheating)

The back 80mm fans should take air out
The CPU fan, in theory, should take it in.
The two front 80mm fans should take air inside.

joxley1990 07-26-2006 11:29 AM

Re: CPU Fan?
Well, my case manual, instructs me to do that the opposite way round. It tells me to have the back fans, as intakes, and the front fans, as outtakes, because there is not much room at the front, to provide enough air, for it to be a sufficent intake..

Stupid case..

lhuser 07-26-2006 11:32 AM

Re: CPU Fan?
Nope. You take the hot air from the CPU wenvironement and you ship it out by the back fans. The front ones provide cool air.

The other way around, you ship cool air out and you ship warmer airin the whole case. It will get warmer.

That's why. You need to eiminate the most heat possible.

ownage 07-26-2006 02:30 PM

Re: CPU Fan?
It depends you need to play around with it. Some people get better temps with the fan blowing down, others get better temps with the fan pulling air.

Kage 07-26-2006 02:31 PM

Re: CPU Fan?
Yeah, its the same with mine you know. I find I get better cooling making the 2 80mm ones intakes and the large 120mm one at the front an exaust. No idea why...

As for that CPU fan being the wrong way round. It certainly couldn't have been doing any harm, but they are usually the other way.

lhuser 07-26-2006 02:55 PM

Re: CPU Fan?
Actually, if youthink for a second, if the heatsink is ot, and you cool it, if you tke the fan the other way around the the two 80mm blowing the heat out, it would actually hel the CPU cool, if I am correct. If I am not, then I'm not.

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