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how should i setup my silver arrow and fans?

post #1 of 10
Thread Starter 
i'm going to buy the thermalright silver arrow cpu cooler

i was wondering which is the best setup


airflow to the rear exhaust:
fans at 1 & 2
fans at 2 & 3
fans at 1 & 3

OR


airflow to the top exhaust:
fans at 1 & 2
fans at 2 & 3
fans at 1 & 3
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post #2 of 10


Also take a look at this, its a good read.
post #3 of 10
Interesting Thanx for that its helped me lol. Am in the same boat as the OP really but i will be using a D14 CPUC was in 2 minds whether to have 2 top fans as out or in. I will try in and see what temps i get.

http://www.overclock.net/air-cooling...l#post14556497

As you can see i will have the cooler as normal (push/pulling the air to the rear) but think i will flip the tops so the blow cooler air onto the heatsink rather than blow hot air out.
Edited by Steev08 - 8/12/11 at 9:03am
post #4 of 10
Thread Starter 
but heat rises. so wouldn't the top fans blow back the hot air?
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post #5 of 10
Quote:
Originally Posted by itzzjason View Post
but heat rises. so wouldn't the top fans blow back the hot air?
That's what i was thinking, that's why in my pic i put them as outtakes. I don't know, i see a lot of people say put the top fans as intakes but then see a lot say exhaust lol.
post #6 of 10
Go with 2 & 3 in your diagram, leave your top as exhaust.

I doubt that you will notice a difference in case temps between your two diagrams. My SA is mounted like your top diagram, exhausting to the rear, most people mount them that way.
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post #7 of 10
Quote:
Originally Posted by Steev08 View Post
That's what i was thinking, that's why in my pic i put them as outtakes. I don't know, i see a lot of people say put the top fans as intakes but then see a lot say exhaust lol.
Quote:
Originally Posted by idahosurge View Post
Go with 2 & 3 in your diagram, leave your top as exhaust.

I doubt that you will notice a difference in case temps between your two diagrams. My SA is mounted like your top diagram, exhausting to the rear, most people mount them that way.
Theres been a recent study done here.

In a nutshell, natural convection is nothing when faced against forced, especially in a confined area such as a computer case.
post #8 of 10
Quote:
Originally Posted by Steev08 View Post
That's what i was thinking, that's why in my pic i put them as outtakes. I don't know, i see a lot of people say put the top fans as intakes but then see a lot say exhaust lol.
It doesn't matter if the top is intake or exhaust unless you have a passive cooling system (which I doubt many people have). It matters more about how much air is actually hitting the components and if that hot air is being vented out properly. There was a news thread on this a week ago regarding fan placement. This is so difficult to test and truly any setup will work as long as air is passing over the main components.

Edit: Thank you above for posting said news thread
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post #9 of 10
Thanks for the thread So basically, blasting the heatsink ect with cooler air will prevent any heat anyhow so therefore no heat to exhaust from the top just the rear? If i use all but 1 (rear) fan as intakes i doubt heat will be an issue, i will just have to test and see.

As for the OP defo the 1st pic (2&3) although, IF the top fans where to be intakes wouldn't 1&2 be just as well? Then you can use any ram you like, i know the D14 ect might have problems with heatsinked ram.
post #10 of 10
Quote:
That means that even one of the lowest pressure, quietest fans that we sell, would *double* the pressure necessary to overcome the air pressure caused by convection, in the hottest scenario we can imagine.
IOW air goes where you push it.

That's theory. In practice those who have switched from top exhaust to top intake have see temp drops of 3-5c. Agenesis tells it right.
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