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 Post subject: Installing fan on heatsink...push or pull?
PostPosted: Thu Jul 01, 2004 3:09 pm 
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I always thought that you orient a fan on the heatsink so that it pulls the hot air away. But, on my Thermalright SK8U instructions, it says to orient it so that it is blowing towards the processor. Any thoughts?


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PostPosted: Thu Jul 01, 2004 3:11 pm 
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Follow the instructions :roll:


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PostPosted: Thu Jul 01, 2004 3:29 pm 
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I have never seen a heatsink fan that blows toward the processor. That is why I posted. Surely you don't believe that instructions never have typos. :roll:


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PostPosted: Thu Jul 01, 2004 3:31 pm 
Willamette
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iv heard that most of the time, unless the heatsink is specially designed for it, you push towards it.


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PostPosted: Thu Jul 01, 2004 5:40 pm 
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Jedi Master wrote:
I have never seen a heatsink fan that blows toward the processor. That is why I posted. Surely you don't believe that instructions never have typos. :roll:


haven't seen many heatsinks, have ya? :wink:

yeah, go ahead and have the fan blow towards instead of sucking away - it's pretty rare these days to have a sink that has the fan sucking.


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PostPosted: Thu Jul 01, 2004 7:31 pm 
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Nothing beats real world testing. Try it each way and see which favors a lower temp in your build.


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PostPosted: Thu Jul 01, 2004 7:32 pm 
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Raven wrote:
Jedi Master wrote:
I have never seen a heatsink fan that blows toward the processor. That is why I posted. Surely you don't believe that instructions never have typos. :roll:


haven't seen many heatsinks, have ya? :wink:

yeah, go ahead and have the fan blow towards instead of sucking away - it's pretty rare these days to have a sink that has the fan sucking.


Apparently not. I went ahead and set it up to blow. The last heatsink I had was a Volcano 7+, but all the ones I've used before that sucked air out.


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 Post subject: Re: Installing fan on heatsink...push or pull?
PostPosted: Thu Jul 01, 2004 8:44 pm 
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Jedi Master wrote:
I always thought that you orient a fan on the heatsink so that it pulls the hot air away. But, on my Thermalright SK8U instructions, it says to orient it so that it is blowing towards the processor. Any thoughts?


I think the only brand that does that method is a Alpha heatsink. And they cost a pretty penny! 8)


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PostPosted: Fri Jul 02, 2004 6:34 am 
Bitchin' Fast 3D Z8000
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Post it the way it says in the instructions.

Many heatsinks will perform better with the fan blowing a certain way.

If you dont believe them, you can always try it both ways and see which works best.


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PostPosted: Fri Jul 02, 2004 7:10 am 
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Some blow into the heatsink, but all of the Alpha heatsinks I have used have the fan sucking the air through, hence the shroud...

Depends on the design, so I would follow the directions.


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 Post subject: Re: Installing fan on heatsink...push or pull?
PostPosted: Fri Jul 02, 2004 1:19 pm 
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Jedi Master wrote:
I always thought that you orient a fan on the heatsink so that it pulls the hot air away. But, on my Thermalright SK8U instructions, it says to orient it so that it is blowing towards the processor. Any thoughts?


WOW


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 Post subject: Re: Installing fan on heatsink...push or pull?
PostPosted: Fri Jul 02, 2004 1:20 pm 
Willamette
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Frankenchrist wrote:
Jedi Master wrote:
I always thought that you orient a fan on the heatsink so that it pulls the hot air away. But, on my Thermalright SK8U instructions, it says to orient it so that it is blowing towards the processor. Any thoughts?


WOW


why WOW? that is pretty normal


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 Post subject: Re: Installing fan on heatsink...push or pull?
PostPosted: Fri Jul 02, 2004 1:41 pm 
Bitchin' Fast 3D Z8000
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BiggPa wrote:
Frankenchrist wrote:
Jedi Master wrote:
I always thought that you orient a fan on the heatsink so that it pulls the hot air away. But, on my Thermalright SK8U instructions, it says to orient it so that it is blowing towards the processor. Any thoughts?


WOW


why WOW? that is pretty normal


He's just spamming...ignore him.


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 Post subject: Re: Installing fan on heatsink...push or pull?
PostPosted: Fri Jul 02, 2004 4:45 pm 
Willamette
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SomeGuy wrote:
BiggPa wrote:
Frankenchrist wrote:
Jedi Master wrote:
I always thought that you orient a fan on the heatsink so that it pulls the hot air away. But, on my Thermalright SK8U instructions, it says to orient it so that it is blowing towards the processor. Any thoughts?


WOW


why WOW? that is pretty normal


He's just spamming...ignore him.


fair enough


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 Post subject:
PostPosted: Fri Jul 02, 2004 4:53 pm 
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all thermalright heatsinks are designed to have the fan push air over the heatsink.


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PostPosted: Fri Jul 02, 2004 4:57 pm 
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athlon11 wrote:
all thermalright heatsinks are designed to have the fan push air over the heatsink.


as far as i know, only the Alpha ones are supposed to pull...


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 Post subject:
PostPosted: Fri Jul 02, 2004 9:01 pm 
Bitchin' Fast 3D Z8000
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BiggPa wrote:
athlon11 wrote:
all thermalright heatsinks are designed to have the fan push air over the heatsink.


as far as i know, only the Alpha ones are supposed to pull...


I think I have seen a few others, but not many. Alot of times it doesnt really even make a difference.


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 Post subject: Re: Installing fan on heatsink...push or pull?
PostPosted: Sat Jul 03, 2004 2:48 pm 
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Jedi Master wrote:
I always thought that you orient a fan on the heatsink so that it pulls the hot air away. But, on my Thermalright SK8U instructions, it says to orient it so that it is blowing towards the processor. Any thoughts?


Actually this has been a discussion I had with phalanx.

You want to measure the temps before and after and try both ways. Everyones ssytem is set up differently. I had a alpha and went with sucking the air out because it gave me lower temps by 1-2 degrees


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 Post subject:
PostPosted: Wed Jul 07, 2004 5:56 pm 
8086
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I agree with Snake (and others that mentioned it) Try it both ways, under load and watch the temps of both the processor & the ambient air in the case.

For some reason, all of my PC's run cooler with the fan pulling air up through the heatsink. I do always have at least two good exhaust fans, and I've put blowholes in all my cases. YMMV.


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 Post subject:
PostPosted: Wed Jul 07, 2004 6:11 pm 
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well, on thermalright's website it says that all of their heatsinks are designed for the fan to push air over them, i dont think thermalright would lie.


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