Swedish ASIC miner company kncminer.com

[5craziest]

they have no incentive to produce working miners.  Every successful product that gets accepted is just in competition with their datacenter

[Zelek Uther]

So what's the latest on connecting PC power supplies to the Neptune's, what is the general consensuses on what we use?

My Neptune was shipped yesterday and will arrive on Monday so I need to get a move on with respect to power.

Thanks,

I think people are recommending the 1300W EVGA, which I believe can handle 3 Neptune modules.

I use 3x Corsair AX1200i for my Neptune, which I'm planning to expand to 5 of them for two Neptunes (when I get my bonus Neppy), i.e. one AX1200i powers two Neptune modules.

There is a catch with the AX1200i.  You need to have PCIe 2-to-1 splitters to use them with the Neptune because the AX1200i has Over-Current Protection (OCP) which kicks in and shuts the PSU down. I blame this on KnC, not the PSU, as the Neptune draws more power across a single PCIe connector than the specification is designed for (that's why the safety features of the AX1200i kick in). Putting the PCIe 2-to-1 splitter cables on means that two PCIe ports on the PSU feed the single PCIe port on the Neptune module, so each PSU PCIe port is supplying power within the PCI specification (and doesn't trip the OCP).

I got my PCIe 2-to-1 cables from Cablez, and I'm very happy with the product (see https://bitcointalk.org/index.php?topic=170332.msg7579936#msg7579936). I've been running them 24x7 since July 11th with no trouble (they don't get warm).

[ImI]

how about ditching those pci-e and soldering directly to the pcb?? if that piece cant handle the load just get rid of it imo...

[crashoveride54902]

they have no incentive to produce working miners.  Every successful product that gets accepted is just in competition with their datacenter

either thou this would screw me, I actually hope btc diff. rate skyrockets just to screw them

[poodle63]

they have no incentive to produce working miners.  Every successful product that gets accepted is just in competition with their datacenter

either thou this would screw me, I actually hope btc diff. rate skyrockets just to screw them

I see you, as you wish, the diff will ramp 35% next time, amen.

[user27]

I think people are recommending the 1300W EVGA, which I believe can handle 3 Neptune modules.

I use 3x Corsair AX1200i for my Neptune, which I'm planning to expand to 5 of them for two Neptunes (when I get my bonus Neppy), i.e. one AX1200i powers two Neptune modules.

There is a catch with the AX1200i.  You need to have PCIe 2-to-1 splitters to use them with the Neptune because the AX1200i has Over-Current Protection (OCP) which kicks in and shuts the PSU down. I blame this on KnC, not the PSU, as the Neptune draws more power across a single PCIe connector than the specification is designed for (that's why the safety features of the AX1200i kick in). Putting the PCIe 2-to-1 splitter cables on means that two PCIe ports on the PSU feed the single PCIe port on the Neptune module, so each PSU PCIe port is supplying power within the PCI specification (and doesn't trip the OCP).

I got my PCIe 2-to-1 cables from Cablez, and I'm very happy with the product (see https://bitcointalk.org/index.php?topic=170332.msg7579936#msg7579936). I've been running them 24x7 since July 11th with no trouble (they don't get warm).

Same here; will be rocking 5xAX1200i if KfC ever dispatch bonus miners.

KfC asked me to send the burnt out cubes back to them at my expense so they can inspect them and decide if they should RMA. That's not an acceptable level of service right? They are essentially saying I have to solder new power sockets myself and hope the cubes still work or suffer further down time and shipping costs?

[ImI]

glad you are all seeing the light

shame it took you all a year to catch up

rape just ain't what it used to be

knc today isnt the same as knc one year ago

jupiter batch #1 and #2 were nearly perfect. especially batch#2 made those buyers a ton of bitcoins. rma were quick and without hassle.

their attitude changed in january when they decided not to sell those extra chips they had and go instead for datorhall.

[AFox]

Today on KNC's forum :

We managed to ship a few hundred miners last week. Not all of these customers that have had their miners shipped will be as vocal as the select few on this forum.

Source

[tolip_wen]

how about ditching those pci-e and soldering directly to the pcb?? if that piece cant handle the load just get rid of it imo...

Thats what I did on day 1.
https://i.imgur.com/3pVt5ae.jpg
I tested them first on the PCIe then voided warranty.

BTW 2 x 12AWG in each direction still gets warm.
Will replace 2x12AWG with 3x12AWG next maint pitstop.
My plan is to use 2 x 12/3 extension cords for the wire.
(50% more copper plus better flexability)


YMMV


EDIT
I use two DPS-2000BB per Neptune @ USD $50.00 each.
(4kW available but only runnin @ 50% of rated output for better efficiency)
https://i.imgur.com/epKz23R.jpg

[faetos]

how about ditching those pci-e and soldering directly to the pcb?? if that piece cant handle the load just get rid of it imo...

Thats what I did on day 1.
https://i.imgur.com/3pVt5ae.jpg
I tested them first on the PCIe then voided warranty.

BTW 2 x 12AWG in each direction still gets warm.
Will replace 2x12AWG with 3x12AWG next maint pitstop.
My plan is to use 2 x 12/3 extension cords for the wire.
(50% more copper plus better flexability)


YMMV


EDIT
I use two DPS-2000BB per Neptune @ USD $50.00 each.
(4kW available but only runnin @ 50% of rated output for better efficiency)
https://i.imgur.com/epKz23R.jpg

tolip_wen, you're work is truly extraordinary. I see the pipes - are you water cooling the chips, too?

[ImI]

nice job you did there!

[tolip_wen]

how about ditching those pci-e and soldering directly to the pcb?? if that piece cant handle the load just get rid of it imo...

Thats what I did on day 1.
https://i.imgur.com/3pVt5ae.jpg
I tested them first on the PCIe then voided warranty.

BTW 2 x 12AWG in each direction still gets warm.
Will replace 2x12AWG with 3x12AWG next maint pitstop.
My plan is to use 2 x 12/3 extension cords for the wire.
(50% more copper plus better flexability)


YMMV


EDIT
I use two DPS-2000BB per Neptune @ USD $50.00 each.
(4kW available but only runnin @ 50% of rated output for better efficiency)
https://i.imgur.com/epKz23R.jpg

tolip_wen, you're work is truly extraordinary. I see the pipes - are you water cooling the chips, too?

yes, rev 1.0 of my prototyping rats nest.
https://i.imgur.com/9T8lRc2.jpg

YMMV

[Phoenix1969]

I requested refund before they started shipping which was refused. The fire hazard miner was then delivered weeks late. RMA was refused on dead dies on the grounds that the remaining dies were running slightly over 3TH. To top it all off this is now 2/5 cubes burnt out with 16AWG cables.

KnC have two arguments in this regard;
1. Low quality cables
2. Improperly seated cables i.e. not all six pins making contact

Real world;
1. Clearly not a low quality cable with 16AWG; it's a design issue where each 50w pin is expected to handle >100w
2. As shown all three of the positive pins burnt, not just two, as it would if one of them wasn't seated properly

I have been lucky so far in that my house hasn't burnt down yet.

If *everybody* could post this link on the KnC fourms *every day* that would be good, thanks. https://bitcointalk.org/index.php?topic=170332.msg8498317#msg8498317

...and now for lots of nice high res photos:


Since KnC didnt bother to respond to me, let alone RMA, last time this happened; here's some warranty voiding nudes:

(nice to see they wrote "2014 KnCMiner" right alongside the socket so there is no confusion)

u27

So sorry to see your drama with these bastards - but welcome to my life a la september 2013.

the ONLY good thing i can see here is you dont have bitcoinorama & phonie X calling you a liar, stupid, retarded & greedy etc.

i got the exact same treatment that you got from KnC - which was annoying and upsetting, but those two cunts made it much, much worse with their feigned ignorance & malice.hence my year long hatred towards them and their blind fanbase of dweebs.

sorry i cant be of more help and i hope you can frenkenfix it so you at least get some return!!

let this be the lesson learnt - fuck a preorder - let the preorder winners revel in their brilliance - cos the risk vs reward is wayyyyyyyyyyyy out of whack.

Piss off... Show us where I ever accused someone lying about burnt shit.
You are a true asshole, congratz.
I never did anything besides help folks in here.  
BTW... If you had used the contact paste I recommended, those burnt pci connections would have never happened, period.

[Phoenix1969]

how about ditching those pci-e and soldering directly to the pcb?? if that piece cant handle the load just get rid of it imo...

That's actually a great idea imho

[user27]

yes, rev 1.0 of my prototyping rats nest.
https://i.imgur.com/9T8lRc2.jpg

YMMV

Cooling still looks great; not so sure about the PSU setup. Those require external cooling and will just keep pumping out 12v after a possible short which is a major fire risk. They are designed for server rooms with fire suppression; not residential dwellings.

What efficiency are you getting on them now?

u27

[TKeenan]

Where did KnC ever say they'd only mine 5% of the equipment they sold?  Did they really say this?  I can't see anything which says that/

[Syke]

Where did KnC ever say they'd only mine 5% of the equipment they sold?  Did they really say this?  I can't see anything which says that/

The promise is still on the website.

https://www.kncminer.com/pages/faq

Why are you selling the Miners and don’t mine yourself (will you use the miners for mining yourself)? ▾

We are mining ourselves, but we believe in the bitcoin project and a diversified market is the best for all parties. We will continue to mine but we do not believe in a monopoly of miners. We will not mine with more than 5% of the hash rate we sell, and we will never mine with customer hardware.

[TKeenan]

Where did KnC ever say they'd only mine 5% of the equipment they sold?  Did they really say this?  I can't see anything which says that/

The promise is still on the website.

https://www.kncminer.com/pages/faq

Why are you selling the Miners and don’t mine yourself (will you use the miners for mining yourself)? ▾

We are mining ourselves, but we believe in the bitcoin project and a diversified market is the best for all parties. We will continue to mine but we do not believe in a monopoly of miners. We will not mine with more than 5% of the hash rate we sell, and we will never mine with customer hardware.

It seems to me they are likely exceeding this.  Can you think of a way to show that they are doing more than 5% of what they sold?

[bitgeek]

yes, rev 1.0 of my prototyping rats nest.
https://i.imgur.com/9T8lRc2.jpg

YMMV

Looks great, how big is the radiator for this thing and what is that bottle for?

[edgar]

glad you are all seeing the light

shame it took you all a year to catch up

rape just ain't what it used to be

knc today isnt the same as knc one year ago - its worse, i agree

jupiter batch #1 False and #2 were nearly perfect. especially batch#2 made those buyers a ton of bitcoins. rma were quick and without hassle.

their attitude changed in january when they decided not to sell those extra chips they had and go instead for datorhall.

batch 1 was shit - trust me, i still have one they REFUSED to rma!!

batch 2 was nice, hence them stopping selling it/them!! but no-one made TONS off any knc junk!

i still have one with flickering dies!

they were cunts in august 2013, and have remained as such since.

the main difference now is their weak little PR girl is no longer shilling her weak little heart out on an hourly basis.


@ phonie - LEARN TO READ YOU LYING, ILLITERATE MOUTH PIECE!!

HOW MANY TIMES DO YOU NEED TO BE TOLD??