Post
Topic
Board Mining (Altcoins)
Re: Swedish ASIC miner company kncminer.com
by
soy
on 15/11/2013, 22:51:04 UTC
My el cheapo 12v switching supply is reading 184 watts at the wall while bertmod says 133watts.  If we ignore the BBB, I suspect bertmod does, the efficiency is 72.3%.  If I scale up for a Jupiter it's 736 watts at the wall.

I confirm BertMod ignores the BBB and also that the readings from the DC/DCs might be a few percent off (I'm not sure if the readings are temperature compensated, and the DC/DCs usually run quite hot, so there might be some error induced by that)

72% efficiency for a cheap power supply sounds totally possible.
I notice my temps are green, 37.5°C while others' are red.  My ambient is 66°F.  I built a wind tunnel and put cardboard inserts between the VRMs and the ASIC.  Don't know where on the module the temp sensor is.