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Fan setup for H70 and CM 690 Chasis

post #1 of 10
Thread Starter 
I recently bought myself a H70 and I would like to know whats the best conifguration for the fans?

My H70 is in the push/pull mechanism. I've snooped around and I believe the best solution is to make the two top fans exhaust air out and let the rest (bottom, front and side panel) push air in.

Is this correct? I have the original CM RC-690 Chasis.

Thank you in advance!
post #2 of 10
I installed my H50 with two fans both ways, intake and exhaust and the difference wasn't noticeable... but I hated pumping the hot air from the rad into my case so I set it up to run as exhaust.

In short, set it up as exhaust.
post #3 of 10
Thread Starter 
Did changing it to exhaust make a difference? Because I might just do that
post #4 of 10
Put it intake. The fans on the to will take the hot air from the RAD up so it will keep the case cool inside.
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Ishimura
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post #5 of 10
Sounds generally correct. Im not sure of the amount of air each fan is moving on your setup but you generally want an equal amount of fans moving air in as you have moving air out. So In theory If all fans moved the same amount of air and you had and equal amount (say 4) I believe the best solution would be to have two intakes and two exhaust.

Setups will differ per application though. I found that testing case pressure with a sheet of lightweight paper over a vent hole works well to see if there is any positive or negitive pressure being created.

Hot air rises so having intakes lower mounted and exhausts up high is a good idea. I always make sure that im always moving hot air out of the case not in.
Edited by Tw34k - 3/2/11 at 12:55pm
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post #6 of 10
nope... my CPU (sig) would idle and load up at the same temps not matter how I mounted the fans (exhaust or intake) I ran pretty low RPM fans too, I think they are 1500rpm and 60CFM

Again if I set it up in intake it would make my motherboard temps shoot through the roof
post #7 of 10
Thread Starter 
I think I'll go with the 2/2 solution for now and play around by swapping them and then check whats the best setup. My fans aren't anything fancy so I doubt that they will make a big difference. Thanks for the help guys. Cheers
post #8 of 10
Ya if you can I would suggest just benchmark it and find out what works best for you. takes a little time bolting and unbolting everything again and again but it will be the only way to know 100% what works best for you.

Just keep in mind to watch other temps other than just your CPU. like I said before I got bad results as intake because my Vreg and X58 would cook.
post #9 of 10
I have the h70 with a cm 690 II advanced... I ran the rad as intake and saw my NB raised 6c in temp from all the hotter air coming in... Switched to exhaust and that relieved the issue... Btw I have the same setup you did top 2 exhaust and bottoms and front intake... That's what works best for me.
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post #10 of 10
Good to see I am not alone
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