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Windows 7: CPU

View Poll Results: Should a CPU Fan be intake or exhuast?
Intake 14 87.50%
Exhuast 2 12.50%
Voters: 16. You may not vote on this poll

23 Mar 2010   #81
Product FRED

Windows 7 Enterprise 64-bit
 
 

Intake or exhaust fan - a test. - Cooler-and-Heatsinks - Overclocking


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23 Mar 2010   #82
cloud8521

 

Quote   Quote: Originally Posted by Product FRED View Post
that'snot about a cpu fan....
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23 Mar 2010   #83
Product FRED

Windows 7 Enterprise 64-bit
 
 

Pudding enough to tell you that a case intake system will actually heat up the CPU and GPU.
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23 Mar 2010   #84
cloud8521

 

Quote   Quote: Originally Posted by Product FRED View Post
Pudding enough to tell you that an intake system will actually heat up the CPU and GPU.
you do understand that that is not pudding right? of course you need to have an exhaust, otherwise you are just cycling hot air, this does not have any barring on this discussion, so it is not pudding.
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23 Mar 2010   #85
Product FRED

Windows 7 Enterprise 64-bit
 
 

Quote   Quote: Originally Posted by cloud8521 View Post
Quote   Quote: Originally Posted by Product FRED View Post
Pudding enough to tell you that an intake system will actually heat up the CPU and GPU.
you do understand that that is not pudding right? of course you need to have an exhaust, otherwise you are just cycling hot air, this does not have any barring on this discussion, so it is not pudding.
In the experiment, he swapped the intake fan for the exhaust fan and saw the temperature of the temperatures of the CPU and GPU drop. The control was less efficient than the variable. Pudding.
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23 Mar 2010   #86
mpcrsc562

Windows 7 Ultimate x64
 
 

I thought I was gone...

What that proved was that his/her system cooled. To be puddin', it has got to be that way for any and every system applied. Right?
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23 Mar 2010   #87
CommonTater

XP Pro SP3 X86 / Win7 Pro X86
 
 

Quote   Quote: Originally Posted by Product FRED View Post
That's what I'm saying. It's used for transfer, not storage. Otherwise, obviously the CPU would eventually melt. Again, I'm not talking about power. I'm talking about efficiency and the quickest way to get the hot air out and cool air in. Sucking prevent it from going back near the CPU, which is the point. Blowing pushes it back. Yes, both methods will cool a CPU one way or another, but an exhaust system is much more efficient.
This is where I think you're missing the point... Suction is a very localized phenomenon, producing rapid air movement probably no more than a few millimeters behind the fan... The cold air rusing in along the tips of the fins to fill this small depression behind the fan actually traps a bubble of hot air inside the heatsink and effectively prevents it from getting to the fan.

Turn the fan around and, yes you're forcing a bit of hot air from the tops of the fins back into the bottom of the heat sink, but you are also forcing a whole lot more relatively cool air right down into the bottom of the heatsink, where most of the heat is. This in turn results in less heat being conducted to the tips of the fins, resulting in even cooler air going into the base of the heatsink.

You see the air in the case is relatively cool, compared to the temperatures of the heatsink. The goal is to push as much of that cool air through the heatsink as you can... and that ain't going to happen on the intake side of a fan. In fact you would simply end up blowing the cool air away from the heatsink.
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23 Mar 2010   #88
cloud8521

 

Quote   Quote: Originally Posted by Product FRED View Post
Quote   Quote: Originally Posted by cloud8521 View Post
Quote   Quote: Originally Posted by Product FRED View Post
Pudding enough to tell you that an intake system will actually heat up the CPU and GPU.
you do understand that that is not pudding right? of course you need to have an exhaust, otherwise you are just cycling hot air, this does not have any barring on this discussion, so it is not pudding.
In the experiment, he swapped the intake fan for the exhaust fan and saw the temperature of the temperatures of the CPU and GPU drop. The control was less efficient than the variable. Pudding.
its pudding for intake and exhaust, but not for Cpu fan suck pro.
My System SpecsSystem Spec
23 Mar 2010   #89
mpcrsc562

Windows 7 Ultimate x64
 
 

Quote   Quote: Originally Posted by Product FRED View Post
Quote   Quote: Originally Posted by cloud8521 View Post
Quote   Quote: Originally Posted by Product FRED View Post
Pudding enough to tell you that an intake system will actually heat up the CPU and GPU.
you do understand that that is not pudding right? of course you need to have an exhaust, otherwise you are just cycling hot air, this does not have any barring on this discussion, so it is not pudding.
In the experiment, he swapped the intake fan for the exhaust fan and saw the temperature of the temperatures of the CPU and GPU drop. The control was less efficient than the variable. Pudding.
But, but, but... Your whole argument was concerning the placement of the CPU fan. This person's experiment dealt with changing placement of case fans, right?

So, how does that link prove your point?
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23 Mar 2010   #90
Product FRED

Windows 7 Enterprise 64-bit
 
 

Our debate diverged into two separate debates. I just proved myself correct in stating that case exhausts are better for overall circulation in a case than a combination of exhaust and intake (unless the intake is in the front), as previously suggested by someone else. At least we can all agree that it depends which part of the computer we're talking about.
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