If I channel the hot air from my CPU cooler directly to the outisde of my case: good or bad to the system cooling?

I think that if the channeling is done with a porr thermal-conductive material (i.e. plastic), I can get the hot air out of the case whitout having it mixed with the cold air coming from the outside.

Besides, the PSU would still have its cooler running, providing more cool air from the outside and (i hope) preventing the cpu cooler from being overcharged.


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Ducting is popular for PC enthusiasts who overclock on air-cooled systems for this very reason.  To do it properly, however, you must consider a few things.

First, you'll want to make sure the air drawn into the CPU fan is as fresh and cool as can be.  This normally isn't too big of a problem, but depending on the hardware inside the computer (such as a high-end video card or multiple hard drives) it could be a bit stuffy in there.  Consider getting a good case fan for the bottom front of the tower or, in extreme cases, possibly ducting air from outside the case directly into the CPU fan.

Second, you'll notice just behind the CPU are some voltage regulators on the motherboard, and just in front of the CPU is the RAM.  These both require air to properly cool, and ducting may rob them of airflow.  Heatsinks are normally designed to direct air from the CPU to either side to allow these to cool as well.  If they overheat, you'll have just as many if not more problems with crashing, instability, and/or total hardware failure.

I would recommend these steps in order:

1. Clean the inside of the tower thoroughly.  Ensure that all the power supply, fans, vent holes, and heatsinks are completely dust-free.
2. Use power management profiles in Windows.  Go to Control Panel>Power Options and select "Minimal Power Management".  This will allow the CPU to slow down when you're doing normal tasks like web and word processing, and only operate at maximum throttle during intensive tasks like gaming.  It will also give you considerable savings on your electric bill.
3. If noise from fans is not a consideration, purchase case fans rated for higher airflow.
4.  Try ducting - be mindful that plenty of air still hits the RAM and voltage regulators.
5. Consider purchasing an aftermarket heatsink for your CPU.  Couple this with an aggressive fan.
6. If all else fails, consider liquid cooling.  You can purchase well-made, inexpensive kits anymore for this purpose.  However, at this point you may also spend just as much on an air conditioner which may be just as effective.



lemonie7 years ago
My case has one of these. Yes, card & tape would be an easy try.

L
vinacarv (author)  lemonie7 years ago
So I wonder, why don't they fo that from factory? Or, if the cost is the problem, they could sell the "hot channel kit" for a few bucks and make profit. I had sooo many problems with overheating =(  
goddamn brazilian summer.
You can add ducts to direct hot air away from the CPU and directly out the case but make sure that the CPU fan wasn't  also cooling other components, if it was you can still make the duct and simply add another fan to replace lost airflow.


vinacarv (author)  killerjackalope7 years ago
Well remembered!
seandogue7 years ago
yes. just make sure you keep a good airflow around the computer case so that you're not recycling that hot air back into the system
Sandisk1duo7 years ago
it would work


you can also just channel a duct right into your CPU fan, it would work even better