Swedish ASIC miner company kncminer.com

[Birman]

I use 1 EVGA 1300 G2 + 1 Seasonic 850 Gold, and no problem - hash between 2.95-3.45Th

[1714156847]

1714156847

[Winsome]

I use 1 EVGA 1300 G2 + 1 Seasonic 850 Gold, and no problem - hash between 2.95-3.45Th

SuperJup or Neptune?

[Birman]

Neptune - from 20 hours

[jelin1984]

Also any details about the fan of Neptune to buy some replaced it?

[aasl]

Swedish Government has a agency (KO) to help consumers to solve a dispute with a company (http://www.konsumentverket.se/otherlanguages/English/This-is-how-you-apply-for-KO-support-/)

"KO will only support a consumer under certain circumstances. The dispute shall either be significant for the application of the law, i.e. to clarify the legal situation within a certain area, or the dispute shall be of common consumer interest, i.e. concern a great number of consumers. When KO supports a consumer in a dispute, the state covers the consumer’s legal expenses."

For those who are cheated by KnC's "choose one lose the other" plan or who receive defected Neptune, we may file a complaint together. But I am not Swedish, and I do not now how to do this. Anyone can provide advice/suggestions on this?

[user27]

Somebody asked about Corsair cables on KnC forum but they banned me for talking about their competitors again so can't respond.

I can confirm that Corsair modular (AX1200i at least) comes with both 18 and 16 AWG modular PCI-e cables. The 18 AWG cables have one PCI-e and the 16 AWG cables (which you get two of with each AX1200i) go to one PCI-e and then have 18 AWG going to another PCI-e.

So long story short the single PCI-e cables would look neater but make sure you use the first PCI-e plug on the modular cables which have two. If you wish to run more than two cubes from one AX1200i then you will either have to buy/make cables or risk the 18 AWG.

u27

[aasl]

Finaly managed to get 3 boxes working out of the batch I had and now seem to find the following issues:

Lots of errors like
 [2014-06-25 06:49:08] KnC: 3.0.310 Failed to setwork (19)
 [2014-06-25 06:49:08] KnC: 3.0.311 Failed to setwork (19)
 [2014-06-25 06:49:08] KnC: 3.0.312 Failed to setwork (19)
 [2014-06-25 06:49:08] KnC: 3.0.313 Failed to setwork (19)
 [2014-06-25 06:49:08] KnC: 3.0.314 Failed to setwork (19)
 [2014-06-25 06:49:08] KnC: 3.0.315 Failed to setwork (19)
 [2014-06-25 06:49:08] KnC: 3.0.316 Failed to setwork (19)

And hashrate drops to almost 400Ghash when running into a lot of hardware errors.

 [2014-06-25 06:50:01] KnC: 1.0.344 disabled for 300 seconds due to repeated hardware errors
 [2014-06-25 06:50:01] KnC: 1.0.349 Failed to setwork (99)
 [2014-06-25 06:50:01] KnC: 1.0.349 disabled for 300 seconds due to repeated hardware errors

Another thing I noticed is that these boxes seriously overload a multirail power supply on startup and causes the power supply to shut down even with enermax 1500W power supplies.
Already send in a report with KNC awaiting their response.
Very unhappy at this point

I am not familiar with multiple PSU's. How to set up single rail or multi rails? what is the best option to make neptune work? suppose I have three 850W PSU.

[Winsome]

Neptune unpacking/setup video (someone else's, not mine):

https://www.youtube.com/watch?v=Zxd3YI2SY2M

[s1gs3gv]

Your whole answer is based on the premise of maximising fiat....
I want to maximise bitcoin
Therefore i ask again
Why buy a machine for 8.5 bitcoins that will likely never return 5 bitcoin (and thats before you take power/hosting costs into account)

Sure, but for the moment bitcoin can't function alone without a link to the fiat no matter how you use it. Unless you just want to horde bitcoins and do nothing with them for at least 5-10 years you must take note of the fiat part. Even when bitcoin will not be linked directly to fiat it will still be linked to products or services which at some point translate into some kind of fiat. I see no problem in just buying bitcoins, but I am sure that you will spend them sometime because you are not part of the top 500 Forbes to afford buying/hording bitcoins and forgetting about them (like most 2009-early 2011 miners did)

So RoadStress's entire argument is premised on the assertion that 5 bitcoins in the future is worth more than 8 bitcoins now because if you have 8 bitcoins now you might spend them but if you don't, you wont.

You're very funny RoadStress.  Good Joke

I have a proposal for you. Send me 8 bitcoins now and I will give you 5 bitcoins on Jan 1. 2015. Escrow is no problem.

~L)L~

[Collider]

This debate is a joke.

Basically, mining is a hedged investment on Bitcoin, and your profit is lower but your risk is also lower than purely investing in Bitcoin.

Furthermore, you help stabilize and secure the network aswell as verify transactions.

Buy and hold is nice, and many miners also do this, but the positive impact on the Bitcoin system is very limited.

[s1gs3gv]

This debate is a joke.

Basically, mining is a hedged investment on Bitcoin, and your profit is lower but your risk is also lower than purely investing in Bitcoin.

Furthermore, you help stabilize and secure the network aswell as verify transactions.

Buy and hold is nice, and many miners also do this, but the positive impact on the Bitcoin system is very limited.

You can mine and do all the things you suggest AND recover your costs or you can mine and not recover your costs.

Which would *YOU* rather do Collider ?

Without profit mining is dead. When mining dies, the network dies.

This is why honest ROI discussions are so important. The future of bitcoin depends on mining being economically sustainable.

Those vendors who avoid ROI discussions, take advantage of people's ignorance or otherwise exploit their customers are doing bitcoin a grave disservice. Its easy to talk the talk, how many of them are walking the walk ?

[kendog77]

This debate is a joke.

Basically, mining is a hedged investment on Bitcoin, and your profit is lower but your risk is also lower than purely investing in Bitcoin.

Furthermore, you help stabilize and secure the network aswell as verify transactions.

Buy and hold is nice, and many miners also do this, but the positive impact on the Bitcoin system is very limited.

You can mine and do all the things you suggest AND recover your costs or you can mine and not recover your costs.

Which would *YOU* rather do Collider ?

Without profit mining is dead. When mining dies, the network dies.

This is why honest ROI discussions are so important. The future of bitcoin depends on mining being economically sustainable.

Those vendors who avoid ROI discussions, take advantage of people's ignorance or otherwise exploit their customers are doing bitcoin a grave disservice. Its easy to talk the talk, how many of them are walking the walk ?

I agree with a lot of what you said, but mining hardware manufacturers also need to make a profit and they won't sell below manufacturing cost unless they are forced to do so by market conditions.

Personally, I think pre-ordering hardware months in advance is silly and will not do so, but others are free to play that game if they wish. From a purely selfish perspective, others pre-ordering hardware months in advance is actually good for me in this zero sum mining game because it almost never works out well for the buyer.

Mining ROI is impossible to predict beforehand, and gets even harder the longer out you look because there are too many variables that can change dramatically and influence the outcome (difficulty, BTC price, delivery date, ...).

I'm actually very surprised at how many folks kept their Neptune pre-order considering they had the option of getting a refund as recently as a month ago, and the Neptune will obviously never mine back as many coins as they would have been refunded. Miners are a crazy bunch, and don't always act in their own economic best interest.

The difficulty is going up a lot right now due to the Neptune, but had KNC delivered a few months ago, the total network difficulty would be much higher right now. Thanks for being late, KNC!

[s1gs3gv]

I agree with a lot of what you said, but mining hardware manufacturers also need to make a profit and they won't sell below manufacturing cost unless they are forced to do so by market conditions.

Sure. That is part of the market dynamics. But it shouldn't preclude an honest discussion of the issue. The fact remains, both miner manufacturing and mining have to be economically sustainable for the network to survive.

Personally, I think pre-ordering hardware months in advance is silly

Agreed.

Mining ROI is impossible to predict beforehand, and gets even harder the longer out you look because there are too many variables that can change dramatically and influence the outcome (difficulty, BTC price, delivery date, …).

That isn't a good argument for ignoring the silliness of spending 8 BTC now for 5 later. Sure, maybe there is a .00009999 percent chance that the network difficulty will be a lot lower in 6 months that it is now, but simple probabilistic analysis allows us to define the error bounds for our ROI analyses.

The difficulty is going up a lot right now due to the Neptune, but had KNC delivered a few months ago, the total network difficulty would be much higher right now. Thanks for being late, KNC!

I hope it isn't just the Neptune … because the S3 and other machines are waiting in the wings too. If this coming ~ 30% increase is just the Neptune, the next one or two are going to be just as bad.

[tolip_wen]

I am not familiar with multiple PSU's. How to set up single rail or multi rails? what is the best option to make neptune work? suppose I have three 850W PSU.

Each PSU is single  OR  multi rail.
Each rail needs to be capable 300 Watt minimum for each ASIC plugged into that rail.
(based on KnC statements)
For multi rail supplies you gotta dig into the literature for specifics on each rail.

For your 3 x 850 question, I'll assume single rail PSUs.
Use 2 ASIC per PSU and power controller cube from 3rd PSU with one ASIC.
If the 'suits' are to be believed this will load the 850's  to around 600 Watts.

If your three 850W PSUs are single rail and were in one box it would be a 'triple rail 2550W with 850W rails'.

Hope this helps.
Please if possible understand what is going on before applying power.
Internet advice can be faulty even with good intentions!!!

YMMV

[aasl]

Each PSU is single  OR  multi rail.
Each rail needs to be capable 300 Watt minimum for each ASIC plugged into that rail.
(based on KnC statements)
For multi rail supplies you gotta dig into the literature for specifics on each rail.

For your 3 x 850 question, I'll assume single rail PSUs.
Use 2 ASIC per PSU and power controller cube from 3rd PSU with one ASIC.
If the 'suits' are to be believed this will load the 850's  to around 600 Watts.

If your three 850W PSUs are single rail and were in one box it would be a 'triple rail 2550W with 850W rails'.

Hope this helps.
Please if possible understand what is going on before applying power.
Internet advice can be faulty even with good intentions!!!

YMMV

thank you so much!

[Phoenix1969]

Peeps....
I thought every miner knew....

You should only use SINGLE RAIL PSU'S
anything else you are wasting $ and taking huge risks imho

Multi-rail PSU's are SHIT,
I burnt out a couple last Generation before going to all Corsair single-rail
Even when the multi's "worked", they could not keep up with the rest
Even 5 year old-crappy used HP desktop PSU's were better. Just sayin'

[bobsag3]

The Dell Zp750s and HP DPS800/1200/2000's work very well for powering the neptunes, nothing but pure 12v power.

[Collider]

Agreed, miners typically pull more than standard power on the pcie cables and therefore should always be using single rail PSUs (apart from maybe the new Antminer S3).

Mining isn´t dead when new miners don´t get ROI, it is when everyone (atleast a large percentage) stops mining due to power costs being higher than bitcoins generated.

There are frequent cases of people not reaching ROI, and most Neptune customers should not reach ROI at todays market, with more big deployments right around the corner.

[Phoenix1969]

Yeah, on ROI... Looks like Neptune may or may not make even 5 btc... if it runs perfect.
30% estimated change with a few days to go, and the next few diffchanges look to be similar
Looks like mining just got stomped into commercial and private clouds by all the manufacturers who decided to mine for themselves.
cough cough
With 43 cent electric here, no way mining in Hawaii is profitable anymore
It would be cheaper for me to rent an office or storage unit in Chelan where it's 2.4cents, but difficulty says forget mining imho.

I'm done. As soon as these Neppies ship out, I'll be turning my attention elsewhere. (trading for now)
Good luck to all, and thank you to those who "put up" with me for the last year plus.
If anything, made a few cool friends...   *Aloha.*

[samsonn25]

Agreed, miners typically pull more than standard power on the pcie cables and therefore should always be using single rail PSUs (apart from maybe the new Antminer S3).

Mining isn´t dead when new miners don´t get ROI, it is when everyone (atleast a large percentage) stops mining due to power costs being higher than bitcoins generated.

There are frequent cases of people not reaching ROI, and most Neptune customers should not reach ROI at todays market, with more big deployments right around the corner.

Let's not forget the initial cost of the machines themselves. They are not free