Duct out the CPU air cooler directly out the caseback?

Golf1.6

Golf1.6

Golf1.6

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Insteading of adding a 3rd fan at the case back. Do you think it will be a better idea to get a 3d printer to build a redirected duct to mount onto the caseback, and line up where the cpu cooler is.

I dont overclock. I am running an am4 5600x, temps are fine as they are, idles 36 celcous, and peaks out at 61 celcius doing a bit of light gaming world of tanks / age of mythology - not a big game, something to kill time once in a while.

The rig probably needs another fan to extract the heat out of the system, i was thinking perhaps just redirect the cpu hot air out of the case, rather than putting an offset fan in there which would cause more turbulance as it's so badly misaligned.

What do you all think?

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hornetstinger said:
Put a case fan on it, it also extracts air from the whole case, so air from GPU will be pulled out also.
Click to expand...
There are 2 case inlet fans coming through the lower fronts, and there are 2 case outlet fans at the top of the case.

I'm not feeling any air coming through the fanless grills at the back - i presume the the cpu hot air must be coming out of the top fans - so pointless?

I maybe be overly pontificating on this, i'm not stressing this machine at all. It's just I read somewhere on reddit someone was claiming they get 30 degree idle on a 5600x with the nh-u12s - maybe they're just chatting rubbish. unless they are getting direct cold air in at the front and directing the air straight out the back.
 
Maybe they are getting 6 degrees cooler. Maybe they have a better chip, maybe they live in a fridge.

Even if you do lower the temperature by stronger cooling, the heat put out by the pc will be the same, it's just being stripped away from the chip into your room air faster.

Not sure what you want to get out of this.
 
What has been said pretty well covers it.

What case do you have?

In most cases (no pun) 2 front intakes and 2 top exhaust isn't a good fan setup. Reason is air front fans move into case is being drawn up and out top fans in front of CPU cooler, and rest of case has no airflow. Front to back airflow works much better in most cases.

As stated, back fan can help cool motherboard components in front of it and under cooler. I used to not install motherboard I/O panel (panel below rear case fan) because with it out air can flow out closer to motherboard and help cool it's components. LGA1366 were notorious for hot components.

I used to make 3 sided (sides and top w/ motherboard side open) duct from cooler to rear fan to draw air under and behind cooler out back. Easy to do using something like a file folder for material, cut and bend seams and glue with glue stick. Notch slots in sides at bottom of cooler finpack and bottom of rear fan and secure duct to them with big rubber bands. Rattle-can paint to stiffen. Make sure shape is what you want before paint dries! Below image is basic guide to making a duct:
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I usually build with high pressure front intake fans and block all openings in fan mounting panel so air fans push into case can't leak thru fan mounting panel holes into front to go in circles from fan thru holes and back to fan so all air pushed into case has to flow on thru case and out.
 
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Ducts used to come on some pc cpu coolers
On prebuilt pc
Not seen one in a long time though
Unless you're actually suffering with temperature
Or just because you can do it
If got a 3d printer
Can't see the necessity

If its just because you can
Then fair enough why not give it a go
Nothing to lose from trying
 
 
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