Air cooler for 245k

Hoping to get the time soon to put it together!!

This was interesting experiment on the topic:

Interesting, thanks!

Something else to take into consideration is each fan setup (ie fan on front, on back and on both) is not just changing airflow thru cooler but airflow thru case. This is adding variables video not being taken into account by video author. These other variables may be small, but with only 2.2 difference it could be result of changes in case airflow and/or combination of both case and cooler.
 
Interesting, thanks!

Something else to take into consideration is each fan setup (ie fan on front, on back and on both) is not just changing airflow thru cooler but airflow thru case. This is adding variables video not being taken into account by video author. These other variables may be small, but with only 2.2 difference it could be result of changes in case airflow and/or combination of both case and cooler.
Couldn't agree more. I think its important to split the build into several phases, most important being testing. Test things, test the thermals but with no ego. If you got it wrong re-adjust and test again.
 
Couldn't agree more. I think its important to split the build into several phases, most important being testing. Test things, test the thermals but with no ego. If you got it wrong re-adjust and test again.
Airflow does things we don't expect. I've seen case running 90c on CPU & GPU with fans at full speed 1600-1800rpm that when fans were slowed down to 1300-1450rpm temps dropped 10c at same load. Best we could figure was higher speeds created too much turbulence thus disrupting airflow. Slowing fans down smoothed out airflow thus less mixing of heated exhaust coming off of components thus less heated air mixing into cool intake air flowing to coolers, thus lower air temp entering cooler being able to cool component to lower temp. Crazy, but true.
 
Airflow does things we don't expect. I've seen case running 90c on CPU & GPU with fans at full speed 1600-1800rpm that when fans were slowed down to 1300-1450rpm temps dropped 10c at same load. Best we could figure was higher speeds created too much turbulence thus disrupting airflow. Slowing fans down smoothed out airflow thus less mixing of heated exhaust coming off of components thus less heated air mixing into cool intake air flowing to coolers, thus lower air temp entering cooler being able to cool component to lower temp. Crazy, but true.
I honestly would have never thought that but then again what you are saying makes sense. You have also got me looking into some case airflow videos on YouTube. Again thanks for the info.
 
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I honestly would have never thought that but then again what you are saying makes sense. You have also got me looking into some case airflow videos on YouTube. Again thanks for the info.
While YouTube can sometimes be helpful, it's often very misleading. Especially with things like how to improve case airflow.

Airflow is the result of higher pressure area of air moving into lower pressure area of air.
Fan impellers draw air on intake side side (creating lower pressure area) and push air out exhaust side (creating higher pressure area).

I'm sure you've seen fans advertised as "high pressure" fans or "airflow" fans. High pressure rated fans are 1.3-1.9mm H2O at 1500-1800rpm.
To put that into prospective, standing at sea level we have 1.836 mm H2O more pressure on our ankles/feet than on our chest/shoulders 5 feet above sea level. That is why things like our case grille mesh, case filters, even cables create significant resistance to and reduce airflow. Part of that resistance is the result of turbulence.

Airflow around something round:​
Airflow around something square:​
Not a great example but hopefully it helps. If you've seen snow drifts along fences, by bushes, etc, you've seen how disrupting smooth flow of air slowing it down causing snow moving in faster air to fall to the ground and builds drifts.
Hope that all makes sense.
 
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