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Air duct supplying CPU heatsink

post #1 of 7
Thread Starter 
Okay, first off I'd like to shoot out there that I'm more interested in experience rather than opinion (I do, however, value both). I'm curious of the temp reductions I could see if I ran a duct directly to my CPU heatsink fan from outside of the case.

I'm currently working on a mod that will to draw air from outside the case at the 5.25 drive bays with a 120mm fan, and I was thinking about attaching a duct from that fan onto the 120mm that pushes air onto my CPU heatsink (I currently use a hyper 212+). I'm wondering if anyone else has tried this, and cares to share follies or gains. Thanks in advance!
post #2 of 7
It sounds like a good Idea although all I can say is watch out for condensation build up...

Edit:
However I can see maybe closed loop corsair H50 benefiting from the air duct as the air/condensation wouldn't make contact with any electrical components if rigged up right.
Edited by Fateful_Ikkou - 10/11/11 at 6:36am
post #3 of 7
I have seen others do it and the results vary depending on your current airflow, what type of GPU you have (exhaust heat externally or internally) and ambient temps.

Is your 212 a single fan or a push pull configuration?
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post #4 of 7
I've actually done this myself in the past, and yes you need to be rather careful about condensation.

What I ended up doing was using some filters, mainly at the window so that no condensation (from say rain or snow) could get into the ducting to bring in moisture into the system. The temperature of the air that case was then pulling was significantly cooler, however wasn't cool enough to cause internal condensation (I checked).
post #5 of 7
Pulling air From the outside of the case is the best thing you can do for your CPU if you are air cooling. Water cooling differs slightly. I myself have done past builds and mods to do the same. It works, but like Fateful said. Watch out for condensation. This all also varies on the room temp of where your computer is located. My room always sits at 65. So any air that I pull from the outside of my case will help allot due to the ambient room temp. Let me know how it turns out.
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post #6 of 7
A few members here have done this as I recall discussing this topic with several.
Here is one thread:-
http://www.overclock.net/air-cooling...i-can-get.html

I will search around a bit to see if I can dig up those other threads.

Such a duct will certainly bring a thermal benefit. Once that duct is deployed, you can then extend the concept to the exhaust end of the 212+ as well.
post #7 of 7
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