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Unused top fan spots covered or uncovered? - Page 2

post #11 of 19
Quote:
Originally Posted by Radnad View Post

For that case I would try 2 120mm front intake, 1 120mm rear intake, and then 2 120mm top exhaust. that should give you positive pressure and solve the problem of needing a filter on top. And since your running all stock clocks you should be able to run those fans down to a pretty low speed and not have a noise issue.

This is the correct solution. Throw the demciflex over the rear intake fan

No matter what you do you are going to have dust. It might be a wise investment of time to figure out the most efficient way to clean out the dust from time to time.
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post #12 of 19
Thread Starter 
Quote:
Originally Posted by Jaimelmiel View Post

You may be right. Also, Ranad's idea may be better. But I am going to give the setup I have a try for a little while and see how much dust builds up in my system.

Or another idea I had - was filter one fan vent on top - then put an exhaust fan on the other. So I'd have 2 intake, one rear exhaust, and one top exhaust. This would be more neutral than positive I guess but the airflow would make sense at least. Thoughts?
post #13 of 19
Thread Starter 
Quote:
Originally Posted by Dagamus NM View Post

This is the correct solution. Throw the demciflex over the rear intake fan

No matter what you do you are going to have dust. It might be a wise investment of time to figure out the most efficient way to clean out the dust from time to time.

Yeah I know it's inevitable. And I'm pretty meticulous about opening up my systems and cleaning them once ever couple of months. I dust the room regularly and vaccuum etc. I'm just trying to minimize as much as possible because dust is ugly. And blocks airflow. But mostly because it's ugly biggrin.gif
post #14 of 19
You could try that. But positive flow is the key to keeping the dust down.Try it and see how it works.
post #15 of 19
I removed all the filters from my C70 as I found them restrictive and I rarely have to clean dust out.

I run 2 120mm front intake, 1 120mm rear exhaust, 1 92mm bottom intake, 2 140mm top exhaust, all run at full speed.

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post #16 of 19
Quote:
Originally Posted by uacGALACTIC View Post

Is it unwise to cover the top vents on a case with filters if there's no exhaust fans being used there? I ask this for the purpose of protecting the internals from excessive dust etc going inside. I suppose this would technically be cutting off some heat dissipation rising out of the vents but on the other hand would the two intake fans and one exhaust be sufficient to move air in/out with the top vents covered with a filter?

The case in question is a Corsair carbide 300r.
Optimizing case airflow is based on not just the case, but also what and where all components are in the case and where case sets in use. You might find "Ways to Better Cooling" link in my sig helpful. 1st post is index, click on topics of interest to read them..
post #17 of 19
if not being used then cover as the intake to exhaust will be more effective - plus you can eliminate noise thumb.gif
post #18 of 19
Quote:
Originally Posted by jlhawn View Post

I removed all the filters from my C70 as I found them restrictive and I rarely have to clean dust out.

I run 2 120mm front intake, 1 120mm rear exhaust, 1 92mm bottom intake, 2 140mm top exhaust, all run at full speed.

That is a significant negative flow ratio. Intake flow area is about 260sq cm and exhaust is 400sq cm .. almost the exact opposite of what I normally do. But then I'm not normally using a pancake cooler, and if I am it usually has fans reversed pulling air up off of mobo rather than pushing down which tends to circle back up into cooler intake.

But at the end of the day it's whatever works. As long as system runs cool enough it's okay. thumb.gif
post #19 of 19
Thread Starter 
Quote:
Originally Posted by ladcrooks View Post

if not being used then cover as the intake to exhaust will be more effective - plus you can eliminate noise thumb.gif

That's what I had thought up in my head. If top vents were unused for fans and covered it would create a more 'direct' flow from front to back.
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