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Author Topic: Swedish ASIC miner company kncminer.com  (Read 3007098 times)
lightfoot
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I fix broken miners. And make holes in teeth :-)


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February 14, 2016, 12:59:44 AM
 #42021

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).
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.

Quote
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"
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?

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GenTarkin
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February 14, 2016, 01:32:46 AM
 #42022

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).
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.

Quote
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"
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.




no idea how to do that =(

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

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edgar
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February 14, 2016, 05:33:56 AM
 #42023

Meanwhile in Boden;

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

http://www.aftonbladet.se/nyheter/article22255558.ab
Searing
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February 14, 2016, 07:30:35 AM
 #42024

Pictures of board:



HOLY SHIT those 2 dies got way way way to fucking hot. Most likely fried the package substrate or something along those lines.
If its not working, that would be why.

I really wish KNC would have designed the dies with ondie thermistors. So we knew what the fuck the actual temps of the dies are...
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

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) Smiley
(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' Smiley

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 Smiley

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" Smiley

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




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Searing
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February 14, 2016, 11:08:15 AM
 #42025




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. Smiley Myself no clue only have Titans Smiley

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BitcoinPappi
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February 14, 2016, 02:45:53 PM
 #42026

Any pointers on repairing burnt power connectors on cubes ?

Here is the best, quickest, and easiest way to deal with a burnt connection in my opinion. It also allows about 3/16in additional contact between the power connector and the pins. Sorry its a bit of a hack. and you must absolutely be sure to put the connector on clip side up, ground wires up since the will not be a receiver connector on the board anymore.

The burnt connector will be brittle, and easy to break up with a pair of side cutters. Do it in small pieces until just the very bottom is left. Then pry up gently with a screwdriver to dislodge the 2 plastic retainers and it will slide right off. Then take a piece of 220 grit sand paper to clean up the pins. Clean everything up and carefully push the power connector on the bare pins while using a flashlight to make sure its on right. It will now go further on the pins making a better connection.  






Thanks! Very good hack indeed
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February 14, 2016, 05:01:56 PM
 #42027

"CSI Boden: Murder in the Datorhall"

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



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

"I am not The Avenger"
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jomay
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February 14, 2016, 06:19:09 PM
 #42028


strange because I got this from my lawyer "Finally, the date for the main hearing is set to 16, 17 and 18 (half day) Mars 2016."
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.

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lightfoot
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I fix broken miners. And make holes in teeth :-)


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February 15, 2016, 06:57:30 PM
 #42029

Pictures of board:


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).
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.
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February 16, 2016, 06:09:26 PM
 #42030

cool. will send it to you. hopefully you can resurrect it
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February 16, 2016, 08:46:10 PM
 #42031

is $2800  - $300 a good buy for a titan that hashes at  340 mh/s ?   
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February 17, 2016, 10:48:35 AM
 #42032

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

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

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February 17, 2016, 09:07:37 PM
 #42033

Good news from Sweden! kfc have let go of 1/5 of their staff  Cheesy
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   Grin Cheesy Cool

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


Your updates on the process of suing these crooks welcome here  Smiley

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February 18, 2016, 06:59:02 AM
 #42034




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


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wolverine5pl
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February 19, 2016, 09:42:36 PM
 #42035

what thermal paste for heatsink you guys recommend for titan?
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February 19, 2016, 10:07:05 PM
 #42036

what thermal paste for heatsink you guys recommend for titan?

AS5 is generally a good one =)

GenTarkin's MOD Kncminer Titan custom firmware! v1.0.4! <--- CLICK HERE
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February 19, 2016, 10:37:20 PM
 #42037

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


Your updates on the process of suing these crooks welcome here  Smiley

If BFL got away with their whole bullshit and with a boss who was already convicted well I think that Markus and Sam will be just fine. Sadly!

iCEBREAKER is a troll! He and cypherdoc helped HashFast scam 50 Million $ from its customers !
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February 20, 2016, 02:39:27 AM
 #42038

perhaps it would be more fitting if they were human centipede-d into a circle so they might spend eternity swallowing nothing but each others' shit... perhaps
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February 20, 2016, 03:29:54 AM
 #42039

Since Im inching closer to release every day and hopefully its right around the corner. Figured I would post a preview picture of the ADVANCED page. Shows the updated "Energy Saver" options, also note the blue progress banner at the top ... this banner will be on every major webgui page while "Energy Saver" is in progress. That banner will turn green when tuning is complete and awaiting user input (Selecting to keep the tuned settings or revert to pretuned settings" ... once selected it will do what the user selects then "Energy Saver" will be turned off and user selection applied.
The HELP page which you can see linked there, will provided a form of Q&A for users regarding "Energy Saver" and how it works.

GenTarkin's MOD Kncminer Titan custom firmware! v1.0.4! <--- CLICK HERE
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February 20, 2016, 02:31:06 PM
 #42040

Since Im inching closer to release every day and hopefully its right around the corner. Figured I would post a preview picture of the ADVANCED page. Shows the updated "Energy Saver" options, also note the blue progress banner at the top ... this banner will be on every major webgui page while "Energy Saver" is in progress. That banner will turn green when tuning is complete and awaiting user input (Selecting to keep the tuned settings or revert to pretuned settings" ... once selected it will do what the user selects then "Energy Saver" will be turned off and user selection applied.
The HELP page which you can see linked there, will provided a form of Q&A for users regarding "Energy Saver" and how it works.

Went looking for the code today to see how you are satisfying GPL licensing requirements but don't see anything in the repo aside from a README, how are you making the source available these days?

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