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Can case fan be your CPU fan

dzeee

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#1
Can i buy a case fan be my new CPU fan?
I can only seem to find CPU fans that come with a heatsink & im gonna still be using my old heatsink, therfore i only need a fan not the whole H/S/F

thx
 

DanTheBanjoman

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#2
there are some sinks with 80mm fans, or even larger using a fan adapter. If you can mount it to your heatsink it should be fine.
 

dzeee

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#3
hmm what do u mean exactly?
I cant put a new heatsink on my mb cos there isnt any room for a bigger one. So i have to keep my current heatsink & get a 60-80mm fan adapter so i can put a quiet 80mm fan on top of the heatsink.

I can find 80mm fans on their own but they say they are case fans not cpu fans. if u get me
 

DanTheBanjoman

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#4
Doesn't matter, you can even rip them from old PSU's or something. The only possible problem is reading the fanspeed in that case. Though even the ones sold as casefans have a 3rd pin for that stuff. You can safely use any fan, as long as it moves enough air around to cool your cpu.
 

dzeee

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#5
Oh ok i see, so in short a case fan is ok.

What kind of rpm & cfm should i look for?

I wouldnt want to get a case fan for it then to find my temps have shot up!
 

DanTheBanjoman

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#6
Not sure, most stores don't even mention.
Though usually a 80mm is able to move more air than a 60mm. "usually"
Seeing that a fan costs a few euro's it won't be that much of a risk :)
 

wtf8269

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#7
30cfm is what most 80mm fans do, most 60mm fans do 18-24cfm. Either one should be adequate. Personally I like high performance fans. Most of mine do 70cfm+.
 

dzeee

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#8
wtf8269 said:
30cfm is what most 80mm fans do, most 60mm fans do 18-24cfm. Either one should be adequate. Personally I like high performance fans. Most of mine do 70cfm+.

Hmm thats alot of cfm they tend to be that high on 120mm fans.
Can you check this for me & say if it would be ok for acting as a CPU fan


Thermaltake Thunderblade 80mm:
http://www.infotechshop.co.uk/products.asp?recnumber=5697