Topic: Swedish ASIC miner company kncminer.com - page 10. (Read 3049520 times)

I'm actually under an NDA due to my manipulation of the cyclone, which is why I haven't chimed in to tell anyone any of the parts. However, I assure you as soon as the sale goes over and KnC is cleared up (legally), I can divulge anything you want.

As for why the Pi is fucking with the boards themselves is just poor choice of product. If they stuck with a beaglebone this stupid problem wouldn't have been an issue in the first place. The old Pi's have a voltage flutter that the bridges absolutely cannot tolerate. This is very much a Pi problem and is present in all Pi's of version 1.1 and 1.2 when dealing with their I/O hardware connections.

I can tell you there's some double tracing going on with the board and it tends to happen when you design a PCB like that (which is why my Batch 2's were messed up after first test use). I'll be back and forth with some people, but as soon as I can I will post the exact part.

Can you tell us what the part was (digikey) and the nature of the fail (why would it kill a Pi?) so I can fix some of them for people?

C

My local manufacturer seemed to have screwed up the second batch with part sourcing which actually doesn't happen often. Unfortunately, I finally realized there is nothing I can do to the boards to prevent the Pi's from smelting them like a lightning bolt. However, for working Pi's i'll be making more bridges.

If anyone wants a bridge for a WORKING Pi, PM me. Everyone should know, that my first batch worked fine, but my larger second batch did not. So i'm going to be doing smaller batches from now on so they can be looked at with more detail before shipping. I'm also limiting customers to only those that have proof they have a working Pi, or those that accept that refunds aren't possible.

Again, I realize everyone that ordered batch 2 became royally screwed, and i'll be mailing out replacements from the third batch. If enough people want to buy the bridges to warrant a third batch.

PS. I'm also working on a way to get a PC to push the titans instead of the controller (as i've reverse engineered some of the stuff on the board and figured some things out using a cyclone IV exploit, more on that later). I just want to get rid of the Pi's and the bridge altogether instead of having to rely on them. Maybe a simple rewire board that anyone can make or that can be provided super cheap and a main controller pc/laptop.

Really? you have any links ...even if I have to use google translate.

KNC did some wrong tax related calculations. Suddenly they had to pay more taxes than they had been able to pay. So they went bankrupt.

Damn, thanks Searing. Guess they couldn't keep up with chinese competition

If it is anything like the Titans you need to replace it with the exact BBB model in a Neptune (or if a Titan a Raspberry pi B+ 512mh) ...on the Titan that is the ONLY board
that works...I assume it may be the same as the Neptune. (If this is what you are referring to above)

luck to your fix

Nope..the shipping from Sweden at best is 150 bucks from back in the day...KNC is now done all equip etc pre btc data hall is now gone imho

I just got a Jupiter off eBay (needed the case for a project..neat cases)  for $30 and $19 bucks shipping if you want to play with it and keep you golden goose paperweight go that way

marketplace in bitcointalk and eBay is the way to go ....they likely will only get cheaper as time goes on

KNC is now defunct and gone..... bankrupt poof........ebay is your best bet...they likely with shipping will be common around 50 bucks in the future is my guess ... keep an eye out

Hey guys,

I bought a golden ticket Jupiter long time ago hosted by KNCMiner, but they never shipped the physical unit to me after the hosting date was up. I tried contacting [email protected] and sam personally to no reply, is there any way I can get my unit back?

Thanks so much.

You sent me a bunch of PMs searing I cant respond since you blocked me just a FYI lol

Well off the top of my head (others with more expertise can chime in here) I'd say repaste (gelin extreme thermal paste 10z) Get some dc/dc copper heatsinks for them and toss the
knc heat/plate/kludge deal away...buy the maxumark bracket instead for 10 bucks (see his thread on here) get a noctura fan (3000 rpm vs 1500 rpm maybe 20% louder..)

But if the unit is from say Nov 2014 it is almost a full 2 years old ..thus repaste would be my guess (and a good cleaning with alchol the rubber stuff on knc heatsinks craps out
over time and turns to oil)

Anyway the 'slow fade' you mention above got me to clean and do the mods as a result on 700mh I gained 35mh and with gen tarkin software my temps on the dc/dc' dumped
between 10c to 15c

anyway my 2c worth ..hopefully others can address better die fix options then myself for more specifics

Hi,

My KNC Titan is acting up -- I've had it for several years now and it stopped mining about two months ago.  Tried a bunch of stuff, including re-flashing the SD card back to Titan firmware 2.00 -- I had GenTarkin's mod on it for several months working fine.

Turned it off until two weeks ago, and on a lark tried turning it on, and it started mining with all four cubes!

Left it mining for a week, then installed GenTarkin's mod on it again, and let it run for several days.  No problems.

Friday I started running the Energy Saver and now one cube is dead, it shows up with only 1, 3, 4, 5 on the right (the other three show 0 through 7), AND BFGMiner keeps restarting every couple minutes.

When I found it in this state I first power-cycled it (which might have been a mistake...), and then clicked the "Stop" button in the Energy Saver section.  I reset to factory settings (-0.0366 V for all of them).  I've got the MHz set to 325 although I had it at 300 when it started working again a couple weeks ago, and when I ran the Energy Saver; I just increased them after seeing one of the cubes not working, figuring I'll get what I can from the remaining three.  I had had it at 325 for months prior to it stopping working two months ago.

It wouldn't be so bad to have it only running three cubes, but having it keep restarting BFGMiner doesn't seem right.  And I just reloaded the Advanced page and now see 1, 3, 4, 5, 7 for the first cube (but it's not mining, only the other three are).

How can I diagnose this?

Thanks in advance for any pointers.

I wouldnt think so.... I mean, imagine the effeciency improvement of a Titan on a smaller silicon node.    Innosilicon just failed at their design and success in wafer creation.
Yes, KNC did indeed hit a homerun w/ Titan. In fact, I would go so far to say its the only crypto ASIC that ended up being "far ahead of its time".
2nd behind Titan would be bitfury's 1st gen - its 55nm design was far more effecient then even newer tech for quite some time.

Whats also interesting is Titan's ability to do scrypt-n (no other scrypt ASIC could do that). Too bad that algo died off tho.

It's possible. I shared one of two new nov 2014 never run Titan 350mh.

eBay buy it now for both of 3500 usd

They could be never run due to KNC lawsuit. (Dumb). And now sold to pay previous KNC lawsuit loss

Of (I heard) like 3-5k per unit on top of 1.5k per unit upfront to lawyers to bring

That suit KNC won.  Glad I did not get in on that class action

I know only this, he ordered a Neptune and changed the order a Titan.
UPS Shipping Date is 11.18.2014

Isnt this, in a way, expected? Not in the sense that Inno failed to meet some efficiency goals but in the idea that Litecoin (Scrypt) was to be ASIC resistant. Its true that ASICs have been designed for Scrypt (obviously) but they are not as efficient as those that were designed for SHA-256. Granted, a lot more money has been dumped into SHA-256 ASIC development compared to Scrypt but still. Maybe we are reaching the limits of what can be done with our current technology?

KNC hit a homerun with the Titan.

so somebody let this sit around unplugged for, how long, 2 years? And passed on 20.000€ mining income?

Do you know the build date?

A4 is indeed a load of horrible engineering (at least from a process node and effeciency standpoint). Innosilicon substantially dropped the specs 2x at least from what the intial goal was. Now, a stated above, the A4 sits barely more efficient than the Titan and most likely - much louder. The Titan is one of the only remaining, profitable home miners - no doubt about that.
The unfortunate part is, the A4 will release and sheeple miners will flock to it and hashrate will climb =(
The good news ... at least Titans will remain relevant for the foreseeable future ... as long as LTC price remains stagnate ... there wont be much demand for more development in the Scrypt ASIC arena.
So, for now ... Titan and A4 are end game for Scrypt(which is a good position for us Titan owners).

 Yesterday I bought new and unused TITAN from ebay uk for  3000€.  Seller was a local and Titan 4 cubes already mining LTC for me.  This is my most expensive purchased TITAN,  but new and unused. Only 1 bad die.
No need to wait for some A4 miner.

That's what I was thinking. Asicminermarket as far as I know sold some balkai miners to people but I have no idea if this is real. Even if it was, this reseller dudes ask a lot more. The profibility, with this shitty specs and watt usage is just not appealing at all. I would rather break my war with bitmain and actually get a s9 lol. The only good thing is the size of this thing as I always tried to stay away from scrypt miners because they are literally huge.