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Question Directional Cooling: Hoods On Case Fans

Mantrid-Drone

Mantrid-Drone

Senior member
What is the current thinking on using say 140mm to 120mm adapters or purpose designed shrouds/hoods to increase SAP (Static Air Pressure) and give a more strongly directional airflow over the MB?

I ask because both the cases I have (Fractal) for new builds have positions for a side mounted intake or exhaust fan (I know there is controversy around that matter too) which will sit, roughly, opposite the NVME drive location on the MB. I was wondering if a more directional flow of air from a shrouded/hooded fan might be beneficial.

Just by lucky coincidence I was watching an automotive repair TV programme today and the mechanic was advocating the use of a shrouded fan and manufactured one himself to improve, measurably, the radiator cooling.

So it is a 'legitimate' idea for improving a fan's effectiveness in a PC.
 
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It might be...depending on the fan. If it's just a run of the mill fan for air flow, I'd expect the hood or diverter to impede the air flow. If it's a pressure fan, then it should work fine.
 
I'm proposing to use a 140mm Akasa Apache, sold as a dual purpose PC fan, which has a stated SAP rating of 2.76 mm H2O and 89.55 CFM at its full 1300 rpm.

Should be OK, yes?

In fact it is difficult to find any other 140mm fan that has figures like that at the same speed.
 
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