Effective placement of fan on Mugen 2

[docyoung]

Being ready to mount the cooler fan I started thinking where would the most effective placement of the fan for max cooling? Would the max cooling be obtained by the fan being mounted so it blows through the long side of the cooler verses cross ways across the shorter width? Any thoughts or ideas about this? Does it matter?

The other idea; due to convection thermal dynamics heat would move upwards, would the cooler fan blowing across this path towards the back 120mm exhaust fan verses or the fan blowing up with the convection current to the top where a 230mm exhaust fan be more effect cooling? I am using a CM HAF 932 case, Gigabyte EX58-UD5 MOBO. Questions and more questions.........


Thanks
Curious George

[Oli]

It does matter and the cooler is designed for the fan to blow through the long/wider side of Mugen 2 although it can be installed on the short side for special situations.

[docyoung]

I suspected that the longer side would give the most cooling results as the fan's air flow would sweep the larger surface area allowing for faster and greater heat dispersion via energy transfer from cooler's vanes to moving air molecules. It seems now that I have thought about it that getting the heat off the cooler's vanes is the primary task, and the secondary task is how to move the heated air molecules out of the case allowing for cooler air flowing in to take place creating the cooling cycle.

Thanks Oli for your timely response that has completed my initial thinking of the cooling dynamics.

[sumo]

Hello docyoung,

mainly it depends on the whole airflow design inside your case. So if you make some draws with your fans and the theoretical airflow, you will find the best position for your mugen 2.
But try to use the fan on the wider side of the mugen 2.

Kind Regards
Chris

[Wayno]

What about mounting the fan slightly lower so it also blows over the heatsink fin and heatpipe portion of the Mugen 2? Better or worse?

[Oli]

Doesn't matter. Using the fan clips on the normal mounting position that was intended for Mugen 2 it will never blow over the base heat sink - so the cooler wasn't designed for low fan installation. The temperature gain will be within the measuring tolerances I'm afraid. But try yourself. On the most modern boards such a low positioning of the fan is virtually impossible is the socket is often surrounded by rather high chipset heatsinks or heatpipe constructions.