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Old 12-12-2018, 10:55 PM
mmfish mmfish is offline
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Smile Mounting a fan over rear of MB to cool underside of CPU

Anyone have experience with mounting a fan over the MB behind CPU? To cool the CPU backing? It would seem to help, thoughts?
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Old 12-13-2018, 09:33 PM
c-attack c-attack is online now
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CPU backing?
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Old 12-13-2018, 11:39 PM
mmfish mmfish is offline
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Backside of MB is open on most cases, heat is generated/radiated by CPU in all directions. All cooling systems attached to the cpu top. Exposed underside of MB must get warm and a fan over the Rear MB should disapate heat?
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Old 12-15-2018, 10:19 AM
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Most likely this be of no consequence or not beneficial in any way. The CPU heat does not radiate in all directions and instead takes the easiest, most conductive path - through the metal plate on the cooler. That’s why it works. Heat transfer through the multiple fiberglass layers of the board is not typically an issue and reducing the surface temperature on the backside would have little benefit to the front side where most of the heat is generated. The individual modules on the front side of the board create heat when electricity passes through them, so fan action for direct cooling is far more effective on that side.
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