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    Author Topic: Swedish ASIC miner company kncminer.com  (Read 3050099 times)
    GenTarkin
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    January 29, 2016, 05:31:12 PM
     #41881

    That is a really, really smart idea. Covering those inductors was one of the more brainless things I have seen.



    What do you mean by "covering"? ... the stock plate? Cuz that stock plate actually functions as a single large heatsink ... maybe a poor one but it still does its job.
    Mrph. Most of the heat can actually be felt *under* the board which is the wrong place for it to be.

    I haven't actually gotten a temp probe to play, but in almost all cases the real source of heat is not the inductor it's the high side FETs. And those get no air on the 1/2,3/4 supplies. And those are what is right next to the caps that usually blow sky high....


    Yeah, the little FET's on there are also very hot. IIRC when I looked through the tech docs on those DCDC's it shows where each DCDC's thermistors are located. I believer there is 2 per DCDC but I could be wrong. The docs also specified 2 key points of measurement for cooling & airflow, one of them was the inductor. Grilling through the tech docs is how I ended up realizing why in most cases these things are being tortured and the way we run them the life expectency is drastically minimized. Which is why I recommend 85-90C webgui readout being the absolute max we push them to. 

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