Post
Topic
Board Mining (Altcoins)
Re: Swedish ASIC miner company kncminer.com
by
FeedbackLoop
on 04/11/2013, 02:32:17 UTC
Okay... update...

After two hours of messing about... I got the board that needs to be hot at a stable 73c, but it now shows 'FAULT' on one of the VRMs.
Even with the fault, the miner is showing 260GH/s average on CGMINER and 244GH/s on the pools side, both of which are slowly climbing. My 5s averages at around 271gh/s - 302gh/s.
I'm much happier with the speed now, but worried about that 'FAULT' on one of the VRMs.

What do you guys think?

Also, my Device Rejected rate and Pool Rejected rate has shot up from around 0.27% to now over 5%.

http://i.imgur.com/kYxaZxSl.jpg

EDIT: Thanks Searing for the suggestion, but that is the first thing I did when I got my Miner. Keeping the temp cool isn't my problem. My problem was to actually heat it up. My miner normally ran at around 45c on one board, ad 48c on the other board. Now I have them at 65.5c on one board, and 73.5c on the other board. Never seen it run better then now. Just hoping to keep that stable.

For all it's worth:

According to the datasheet (http://www.lineagepower.com/oem/pdf/MDT040A0X.pdf) I would guess FAULT 4 just refers to the "IO Overcurrent" fault on bit 4 of the lower byte on page 20.

We see it at a higher current than it's brothers in the same board. Maybe a tiny improvised cooler on just that vrm to make it go away? Copper coins? Old motherboard coolers? Pray for no magic smoke?