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Old 10-23-2014, 05:58 AM
jburba jburba is offline
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I have been tinkering with mine. CPU pretty much does cpu things, so I disabled all remote access save ssh. I also made alterations, at my own risk, to the chassis, namely drilling holes and creating a pretty nice design on it. That said I ran it without the chassis cover for some bit. Most of the heat production is not even coming from the CPU, but the built-in power brick. This is why no matter how little devices you connect to POE, it starts hot, as just being on, produces heat for the brick. This is why without the chassis cover, it ran at most at 43C with 4 POE devices connected and no fan on. With the chassis on, it keeps the heat in and the fan is positioned right where the brick is, so it is meant to pull hot air from there not the cpu, because again the CPU is fine. With the fan off, the heat from the brick, the boxed in chassis makes it a convection oven. I'm drilling more holes into my cover for both air circulation and added surface area. Since it is aluminum, it will help dissipate heat better if I sand off the paint and expose the aluminum. Again this is just me, taking my own risks, with my own devices, but you can use what I learned as you wish. From this, my conclusion is that this device is not meant to run fanless, thought the option is nice, in room temperature closet, or area. In a temperature controlled server room, like at my job, it'll be fine, but from the small size of the fan, the savings will be just pittance.
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