Post
Topic
Board Mining (Altcoins)
Re: Swedish ASIC miner company kncminer.com
by
tolip_wen
on 28/06/2014, 07:45:52 UTC
I have removed the aluminum plate, so now I can see the Ericsson VRM's..... this is bad: they are the BMR4641002 (max 40A) instead of the BMR4641008 (max 50A).  Angry ...... no OC possible !

The 1002 has a OverCurrentProtection of 48A and looking to my Advanced-page: nearly all the VRMs are already around 46-47A (and this is KnC's default setting).
They should have used the 1008 instead, which has 50A and an OCP of 62A.

40A @ 60C
We run em @ ~80C so derate to around 32A
(90C detate to 25A)
per the documentation

http://archive.ericsson.net/service/internet/picov/get?DocNo=28701-EN/LZT146435&Lang=EN&HighestFree=Y

Need to average in mind between first 2 graps on page 11 for 0.78V

YMMV
Smiley