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Go Back   SailNet Community > Out There > Cruising & Liveaboard Forum > Living Aboard
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  #41  
Old 09-03-2007
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Originally Posted by wind_magic View Post
I'm installing a Pico-ITX board. With a solid state drive you'd have a great boat computer. The Pico-ITX board does have a fan but it's tiny and I'm going to completely seal mine inside of a metal enclosure. ]
Am I missing something? What's the point of a fan inside a completely sealed metal enclosure? You would simply be moving around heat unradiated through the metal...you'd be better off with a fat heat sink.
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  #42  
Old 09-03-2007
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Am I missing something? What's the point of a fan inside a completely sealed metal enclosure? You would simply be moving around heat unradiated through the metal...you'd be better off with a fat heat sink.
The problem is the visual in your head is thinking normal motherboard and case.

Instead, think motherboard the size of a pack of cigarettes, fan the size of a quarter, and large metal enclosure.

Less like a bull in a shoebox, and more like a mouse in a gymnasium.
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Old 09-04-2007
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The problem is the visual in your head is thinking normal motherboard and case.

Instead, think motherboard the size of a pack of cigarettes, fan the size of a quarter, and large metal enclosure.

Less like a bull in a shoebox, and more like a mouse in a gymnasium.
That bit I get; what I don't understand are the thermodynamics of a tiny fan inside an unvented box. With no circulation outside of the cubic inch of airspace, I am wondering what the fan could be for.
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Old 09-04-2007
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The fan takes the heat off the heat sink, and put it into the air..which transmits the heat to the metal casing...which disperses the heat, acting as an external radiator.
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