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Cooling Diagram Brainstorm and my Awesome MS Paint Skillz

post #1 of 7
Thread Starter 
With my basic knowledge of physics, I can tell you that warm fluids will rise while colder fluids will sink, given that they are the same substance, of course. So I would assume that I want intakes in the bottom half of a case and outputs in the upper half. I'm looking at the Cooler Master HAF 912.



Blue is cool, red is hot, and both are warmed. So the PSU pulls in the air from the bottom vent and expels it upwards towards the processors. The intakes from the side and front will add more air and the CPU and GPU will pull them through and heat them, where they are expelled out the back and top vents. The only issues I foresee are that this will be 2 inches below a shelf and 2 or 3 in front of a wall, which may restrict airflow a bit. Thoughts of my setup? Nothing is set in stone; I don't even have the parts. which is why I'm doing research first, and by research I mean talking to strangers on the Internet (with free candy!). Finally, more for the lulz, are LED fans worth it?
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post #2 of 7
Quote:
Originally Posted by CynicalUnicorn View Post

With my basic knowledge of physics, I can tell you that warm fluids will rise while colder fluids will sink, given that they are the same substance, of course. So I would assume that I want intakes in the bottom half of a case and outputs in the upper half. I'm looking at the Cooler Master HAF 912.


Blue is cool, red is hot, and both are warmed. So the PSU pulls in the air from the bottom vent and expels it upwards towards the processors. The intakes from the side and front will add more air and the CPU and GPU will pull them through and heat them, where they are expelled out the back and top vents. The only issues I foresee are that this will be 2 inches below a shelf and 2 or 3 in front of a wall, which may restrict airflow a bit. Thoughts of my setup? Nothing is set in stone; I don't even have the parts. which is why I'm doing research first, and by research I mean talking to strangers on the Internet (with free candy!). Finally, more for the lulz, are LED fans worth it?

A Power Supply will draw the air from the fan (bottom in your case) and send it out the back through its exhaust fan..

Maybe be considered close to its surroundings, it would be better in the open, but the exhaust fans will do the job of keeping the warm air out...

LED Fans, are basically Eye-Candy, they are not needed and do not make the fan any more efficient, but if you are going for a Blue theme, then why not.
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post #3 of 7
Quote:
Originally Posted by CynicalUnicorn View Post

With my basic knowledge of physics, I can tell you that warm fluids will rise while colder fluids will sink, given that they are the same substance, of course. So I would assume that I want intakes in the bottom half of a case and outputs in the upper half. I'm looking at the Cooler Master HAF 912.



Blue is cool, red is hot, and both are warmed. So the PSU pulls in the air from the bottom vent and expels it upwards towards the processors. The intakes from the side and front will add more air and the CPU and GPU will pull them through and heat them, where they are expelled out the back and top vents. The only issues I foresee are that this will be 2 inches below a shelf and 2 or 3 in front of a wall, which may restrict airflow a bit. Thoughts of my setup? Nothing is set in stone; I don't even have the parts. which is why I'm doing research first, and by research I mean talking to strangers on the Internet (with free candy!). Finally, more for the lulz, are LED fans worth it?

You completely forgot to factor forced convection into your thermodynamic concepts. What you want is fluid flow to be laminar; direction is irrelevant as long as there isn't recycling.
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post #4 of 7
Thread Starter 
Quote:
Originally Posted by Mathius View Post

Quote:
Originally Posted by CynicalUnicorn View Post

So the PSU pulls in the air from the bottom vent and expels it upwards towards the processors.

A Power Supply will draw the air from the fan (bottom in your case) and send it out the back through its exhaust fan..

Maybe be considered close to its surroundings, it would be better in the open, but the exhaust fans will do the job of keeping the warm air out...

LED Fans, are basically Eye-Candy, they are not needed and do not make the fan any more efficient, but if you are going for a Blue theme, then why not.

So in that case, I have even less to worry about. It was my understanding that air through a PSU would be blown upwards, but if it goes out the back, that's even better. I'll try this out with stock clock speeds and see what happens, THEN I'll overclock. I'm hoping under 60 degrees C under maximum strain.
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post #5 of 7
When force cooled, convection matters very little. That PSU on the bottom is on it's own there, pulls from bottom exhausts in the back. That side fan will supply fresh air to GPU which is usually made to exhaust to the back, so you got that part covered. Top and back fans around the CPU cooler are OK too but their role would depend on the type of CPU cooler. if it is a cooler parallel to CPU the both will work good to evacuate hot air from it's surroundings, Now you just need an adequate intake thru the front of the case which should supply proximately as much air as the rear ones pull out and you would be all set for nice cross flow thru out the case. Throughout this whole exercise you must not forget other components that need cooling just as badly, NB, memory and VRM just to name few. They should be exposed to airflow as much as possible but the also ad some heat to the total. I'd rather push some more air into the case than it goes out so the air will get to all the places because of slightly higher pressure in the case.
post #6 of 7
If you can, use 3x of your 5.25" optical bays for a an intake fan. This will feed nice cool air to your CPU cooler.

Use back fan as exhaust and no fan in top.

If possible remove top part of HDD cage so lower front fan can blow directly toward GPU.

Remove unused PCI slot covers so heat from GPU can flow out the back.

You may not need to use a side intake fan.
post #7 of 7
Thread Starter 
Until I see a need to upgrade, I'll be running 200mm fans at the front and top of the case and move the two 120mm fans that come with the case to the back and side. That does make sense, having higher pressure within the case itself for a sort of passive exhaust.
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