Topic: Swedish ASIC miner company kncminer.com - page 38. (Read 3049521 times)

AS5 is generally a good one =)

what thermal paste for heatsink you guys recommend for titan?

Anybody on here have like 2 or more KNC Y adapters laying about they want to sell me. I ONLY want unused ones.

I discovered that my current ones (15 months) a couple had issues. No browning or anything, but the replacements I had that were unused

were quite a bit 'snugger' then the old ones I replaced. So anyway some kinda 'degradation'. So anyway I know a lof of folk got the longer

Y cables made direct to stack their cubes 3 high ...so if anyone has a new set of 4 as a result .let me know what you need for the price.

Again they have to be UNUSED for me to be interested. Perhaps I'm parinoid...but again we are dealing with 'evil' knc machines don't ya know.

thanks

Good news from Sweden! kfc have let go of 1/5 of their staff 
http://swedishstartupspace.com/2016/02/16/bitcoin-startup-knc-miner-downsizes-a-fifth-of-its-workforce/

Seems some chinese firm invested multi-millions in equipment and kfc are now very small time players.

So much for their dream to control 40% of the BTC network  

But it's not enough! I want this to be a reality asap


Your updates on the process of suing these crooks welcome here 

7-9 months  ROI , if you have free electricity.

is $2800  - $300 a good buy for a titan that hashes at  340 mh/s ?   

cool. will send it to you. hopefully you can resurrect it

I was thinking about this as a new Neptune repair came in. Same basic problem (shorts power supply everything looks ok) and it took me a few mins to figure out the problem:

Basically there *CAN BE* and sort of *IS* 12 volts to the die. The power supplies are switching supplies, which means they turn the high side FETs on for a short time, then the low side FETs on for a longer time to put a brief spike of 12v that is immediately brought back down to zero. The average is filtered through the choke (the big hot thing) to make a nice constant output voltage of .7 or whatever.

However those high side FETs switch a lot of current very quickly. If they overheat then they cur through and short. Now when a FET shorts the PN junction becomes a 0 ohm resistive path quickly. Which applies the full 12 volt rail to the chip die. Which either shorts the 12v supply or incinerates things quickly.

My guess is this is what happened to Wolverine's board. I can find these shorts and clear them, but the die is probably toast (like this Neptune, die is dead shorted). Wolverine if you would like I can take a look at the board and see if I can clear it. No guarantees, but I can probably get 50%-75% of the board working again which is still nice for a Titan.

Are you suing KnC as an individual or did you join a class action group?
Which lawyer are you dealing with if I may ask?

It'd be great if you can post an update after the hearing.

"CSI Boden: Murder in the Datorhall"

Don't worry, Dickhead Coleuso is on the case:



https://www.youtube.com/watch?v=6YMPAH67f4o

Thanks! Very good hack indeed

This is for Neptune users. (I don't have a Neptune). It is in German on Ebay and no idea how 'legit' it may or may not be.

But they are stating a 'firmware' upgrade for Neptunes. Just tripped over it thought It MAY (or may not) be of some note.

I've no idea. But I suppose Neptune folks can at least message the guy and see if it is 'maybe' legit or not?


for what it may or may not be worth below is the link. You will need google translate.

http://www.ebay.com/itm/KNC-Neptune-custom-Firmware-Zwilla-mod-1-x-Lizenz-Paket-/322001648880?hash=item4af8cb3cf0:g:Q1sAAOSwZVhWRFX7

Hope it amounts to some use for you Neptune folk. Myself no clue only have Titans

Yeah I have 1 cube with only 1 die that works coming (30 ltc). I got it to see if I could get that 'clone titan bridge' I got as a just in case (only 7 were available not sure
if any now) working as 'Frankenstein" titan board with the LCD from the 6 port I have laying about and the Jupiter 550gh oct 2013 4 port board...folk say it should work
Sometime the end of the week I'll try to get this to work. (or lond bang)
(must also dig out the 'Voodoo for Dummies' book and buy a 5 gallon pail of Chicken Entrails....knc devices require much work of the 'dark forces'

so we will see if it works with a 4 port Jupiter board and the proper pi and the firmware for a titan...if nothing else i may get BANG for my buck ....literally

The first step is get it all together and if the LCD comes up as Titan and the GUI comes up with Titan stuff but no cubes...(and no burning smell or smoke)
I guess then the 1 die cube will be ready for this unholy sacrifice.....

IF that works. I will next as a project delve into the 1 die only working titan cube.  (it has been mod'd already) I probably will re-paste it again and whatever other tweaks I may yet be able to do ..just to practice on something for the cubes that have 1 dead die or fading dies ......must have the proper 'subjects' for my experiments (bharahahahah cough) evil laugh sucks

anyway....we also with *no balls* may eventually creep up on these things and metaphorically 'wack them with a stick' to get them working..if not well
always the pleasure of blowing something up 'stylishly"

(man I need a life.....sheesh)

Meanwhile in Boden;

https://www.reddit.com/r/btc/comments/45hgkz/attempted_murder_at_kncminer_in_sweden/

http://www.aftonbladet.se/nyheter/article22255558.ab

no idea how to do that =(

Would implementing disabling / enabling of the dies be hard in the bfgminer driver? cuz that code is unfinished =/ ...

Well, you never know. They have to power the hashing engines and the computer that collects the engines on each die and formats it for the FPGA. That takes more than .7 volts, so either they have a charge pump on the chip or they have something on this stupid board that does it.

I cheated. Using the driver code in bfgminer trip to diagnostic mode and save all the output to the disk. Question: Just include the driver code in your own routine and push/pull info from the die that way.

Now what are those SOT-6 chips?

Sorry I haven't replied sooner, some personal stuff has nearly destroyed me, so I haven't felt like coming around much at all these days. Anyways...yeah I have WinHTTrack sitting around too, but haven't used it much. As far as I know, it's really only good for cloning a site? I think it's near impossible to auto-backup that Wayback Machine archive with existing tools, since you can't really auto-follow each link with them. Whenever I do it these days, I just save each page in whatever browser I'm using. It's painstaking and time consuming. Maybe others know a better way.

As far as merging those archives, I think you would have to go through the HTML and re-connect all of the links that are now different. Added bonus would be to delete all of the links that weren't archived. One quite old batch tool that I like using for changing links is SearchAndReplace V2.5.1.0. If someone knows a better one, I'm all ears.

Yeah, of course the 12v aint going directly to the dies =P ... the DCDC's convert the 12v to .7v for the dies(chips as u call them).

Oh and, did u see my question about the SPI data u obtained? How did u get that? Im trying to figure out commands to run to get data from SPI but I cant =/
I used spi-test and cant figure out how to "talk to the dies"

Design of the cubes is terrible starting from screws holding everything.
I guess when I put it back thermal paste wasnt spread properly. dont have luck with titans and ebay. Cant wait for A4 miners

Thermistor wouldn't work without calibration which would be additional expense in testing.

But some simple circuit with diodes or BJTs using reverse polarized junctions could have sensible accuracy without additional calibration.