CPU cooler - fans positioned to pull air from bottom and push out top

Bazzards

Bazzards

Bazzards

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Hi all

As per the title, I am looking to replace my h100 aio with an air cooler. Are there decent air coolers that allow for the fans to be placed above and below the cooler? I cannot have the traditional front to back fans as the rear fan space has the rad from my 980ti aio which cannot be moved anywhere else in the case.

For info the case is a 750d and I currently have the h100 rad at the top of the case.

Cheers
 
Ok you make it sound like you have to have a cooler with two fans? Shirley you can get a decent cooler with just one fan that would not foul the AIO at the rear? Forgive me if im getting the wrong end of the stick :) If you are talking about bottom to top fans with regards to something like the low profile cooler orientation then i think you will have the same problem of its footprint fouling the AIO and the ram.
 
All the Noctua coolers I have used allow the user to change the heatsinks orientation, I'm sure many other brands offer the same . . . You may have to measure up for a new heatsink carefully though to avoid the lower fan sitting right above a toasty GPU! :D
 
Oh im not fussed with how many fans the cooler has, just want to be able to offload the h100.

I could possibly make more room for the cooler by moving the rear graphics card rad fan to the outside of the case, leaving the rad on the inside of the case. However I still want to be able to expel air from the cpu cooler to the top of the case. Dont want hot air from the cpu cooler run out the back of the case through the GPU rad.
 
Thanks for the responses guys. Will investigate the Noctua, sounds perfect if the cooler orientation can be altered.
 
Bazzards said:
Hi all

As per the title, I am looking to replace my h100 aio with an air cooler. Are there decent air coolers that allow for the fans to be placed above and below the cooler? I cannot have the traditional front to back fans as the rear fan space has the rad from my 980ti aio which cannot be moved anywhere else in the case.

For info the case is a 750d and I currently have the h100 rad at the top of the case.

Cheers
Click to expand...
Why are you doing bottom to top airflow instead of front to back airflow?
Doing bottom to top moves all the heat coming off of GPU up into CPU cooler.
Front to back move GPU heat back (when unused PCIe back slot covers are removed and good pressure rated intakes are used) so GPU heat moves back and out of case without heating cool air coming in the front and going to CPU Cooler mounted to move it's heated air on back and out of case.

Depending on what case fans you now have you might need a couple of better intake fans. With good intakes you won't need exhaust fans. The air will flow through and out of case no problems.

As for what cooler, there are many. Like Crorig R1 Ultimate, NH-U14S, NH-D15, NH-D15S, PH-TC14PE, as well as several good Scythe, Raijintek, be quiet!, etc. coolers that will all cool as well as H100 with less noise.
 
I am currently running 980ti in sli, both aio's. The top card rad is currently expelling air out of the rear. I did not want to put an air cooler on the cpu with the air channeling front to back as this would increase the temps on the gpu rad. I'm currently thinking however that it might be better to just get a custom loop for the cpu.
 
In my experience have more fans exhausting air than intaking.

It's a box, its hot, get that air OUT.

Intake fans will pull more than enough air in especially with the partially lower pressure caused by having more exhaust than intake.

My two brexits
 
3t3P said:
In my experience have more fans exhausting air than intaking.

It's a box, its hot, get that air OUT.

Intake fans will pull more than enough air in especially with the partially lower pressure caused by having more exhaust than intake.

My two brexits
Click to expand...

That's the wrong way to do it actually. You want positive air pressure to prevent dust settling in the case. Always have more air flowing in than out as far as fans are concerned. This is why most modern performance cases come stock 2 in 1 out.

As far as orienting the cooler pointing the exhaust up, I agree with this in this case as having it blow onto the AIO for the GPU is just going to dump excess heat on that radiator and heat the GPU up. It makes more sense to have them exhausting out separate case orifices to maximize thermal dissipation for the CPU and GPU. yes the CPU will draw some hot air up from the GPU but it won't be as bad for the CPU as it would be for the GPU to have the hot cpu exhaust go on it's rad.

JM2C.

Also I suggest Noctua air coolers such as the NH-U14S and I suggest hopping over to their website to check compatibility with your particular motherboard and RAM setup especially considering you are orienting the cooler to exhaust out the top. Big air coolers can cause clearance issues with RAM and GPUs and all sorts of headaches, but they are low maintenance and will not fail over time like an AIO and are therefore a better choice IMO.

You can get the new Noctua Chroma covers for their coolers which slot on and make the cooler look pretty, not just like a hunk of metal. AFAIK they do not affect performance. Not sure if they have hit retail yet.

Not much you'll be able to do about the ugly brown fan though.
 
Computer cases are no different than anything else with airflow. Case can only flow out as much air as is flowing in // can only flow in as much air as is flowing out. Most of my builds in last couple of years have no exhaust fans. Having a little more airflow potential on filtered intakes than exhausts means a little air tries to leak out and thus keeps dust out.

Here is link to guide about how airflow works and how to optimize case airflow.
https://forums.overclockers.co.uk/t...-i-put-my-temp-sensor.18564223/#post-26159770

750D has 170mm CPU clearance
Asus Z97 Pro Gamer has about 52mm center CPU toward RAM and 68 to nearest PCIe socket (PCIe x2) and 98mm to nearest x16 PCIe.
Need to know RAM height to help determine what coolers will fit.
 
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