AIO rad position and fan setup

DoggyX

DoggyX

DoggyX

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Joined
21 Oct 2004
Posts
205
Location
West Yorkshire
Recently purchased an AIO cpu cooler, coolermaster 240. Have 3 system fans already all 140mm, phantek fans.

Case is: https://www.overclockers.co.uk/phan...black-full-acrylic-side-window-ca-040-pt.html

Gpu is sapphire Nitro+ rx480 8gig.

Torn between:

Radiator at front with fans set to intake, 1x140mm top exhaust and 1x140mm top rear exhaust - both set to lowish rpm.

Or

Radiator at top as exhaust, 1x140mm top rear exhaust and 2x140mm front intake.

Would I see much higher difference between the 2 configs? Or is it just going to be personal preference.

Read that it's best to aim for slightly positive pressure but also read that negative is better for cooling.
PC is kept on a short thread carpet floor in a low dust room.
 
Yes, saw that video during my research, also one from 'jayztwocents' where he argues for front mounting.

Just still see so many mounting at top.. Think best way would be to try front and do temp tests then later switch to top and play with fan setup.

Was just hoping on some feedback as not very mobile at moment as had tibial IM rod removed but to impatient to wait until fully healed :P

Cheers for reply :)
 
I had a play around with mounting for my AIO which is cooling my GPU via a Kraken G10. The best position I found was mounting it on the front of the case as the intake, and I suppose what happens here is that the coolest air (i.e. the air from the room) passes over the radiator first, therefore giving you the best AIO temps possible. The air cooler for my CPU suffered ever so slightly in terms of temps, but well within acceptable limits.

Mounting at the top of the case would sacrifice AIO temps for cooler case and CPU temps. However, I found the trade off for a cooler GPU (a 290 mind, so naturally quite hot) was well worth it.

If in doubt, have a play around with positions and take some temperature readings, then see what works best for you.
 
depends on your set up, I had a build with dual RX 580s and no way did i want them getting half the air possible as well as being luke warm from the AIO .

GPUs on air got effected more by the lack of airflow and hotter thems then the AIO did being at the top receiving the warm air. Plus had 3x 120 fans at the front so top fan would have solely supplied the AIO and rear exhaust fan would have caught most of the GPU hot air.

depends on the case design and whats inside
 
Did a front install as intake with 1x140mm at top exhaust and 1x140mm top back exhaust.

Stuck a quick o/c of 3.8 @ 1.389vcore and went to run OCCT. Cpu never went over 68 but something hit 85 and the program auto ended.

Need to have a closer look at it all, I always question installation as I find them fiddly as heck! Also pump fan rpm was showing at 2980 while cpu is at 780 all while idle.

Thinking with my case and mobo (b350 tomahawk) top mount as exhaust might be better with 2x140mm front intake and 140mm top back exhaust.

Had to break off for dinner so will play with it tonight/tomorrow.
 
I think you should try it up top, if it's just cooling the CPU and the GPU is air cooled.
 
https://imgur.com/a/OgIB4
moved radiator to top, these temps seem decent to me - considering I've got vcore quite high at moment.

Pump is plugged into pump fan on MB which is always at 100%, radiator fans are in cpu fan on MB, wondering if I should do an auto tune with MSI command centre or not?
 
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