Swedish ASIC miner company kncminer.com - page 383.

rograz

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Quote from: dropt on June 18, 2014, 10:40:07 PM

Table 4.3 - http://www.molex.com/pdm_docs/ps/PS-45558-001.pdf

and

http://www.molex.com/webdocs/datasheets/pdf/en-us/0457320001_PCB_HEADERS.pdf

The first one is just a copy of the the pci-e express power standards iirc, if we were limited by those standards the world would be on fire by now! Second one states 8A however so it's even worse than the info I had, could be that there are different pin configurations however with different ratings.

Better pull out some LN2 and cool those connectors.

RoadStress

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Quote from: jimmothy on June 18, 2014, 09:59:28 AM

Quote from: RoadStress on June 18, 2014, 09:45:13 AM

It's not like you can get a 3Th/s Neptune now. If you buy a Neptune now you will get it in September too. There is nothing on stock right now.

Do you really think they will be shipping in september? They said they expect to ship batch 1 and 2 before the end of this month..

Right they will ship 2 batches in 1 week.

Quote

You only need 0.028btc to afford datatank/giant mining operation rates.

It's a fair comparison because your customers need to spend $5,300 + $0.15/kwh where as datatank customers spend $17 for 18GH. Please show me hosting at $0.025/kwh available to your customers. I doubt you can even find below $0.05/kwh.

Yes someone could probably build an air cooled DC but even at $0.025/kwh immersion cooling would save ~$200,000/year in electricity costs alone.

What will 0.028btc get you in order to afford datatank mining?

200k$ per year saved in cooling electricity costs right? What is the cost for the Datatank?

dropt

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Quote from: rograz on June 18, 2014, 09:50:08 PM

Quote from: xstr8guy on June 18, 2014, 08:58:03 PM

Quote from: samsonn25 on June 18, 2014, 08:19:16 PM

Yes. But that's the whole discussion. How can that 1 connector power up 450 + watts

I was just attempting to correct you misconceptions. You didn't appear to have read the news updates so I thought I'd link/quote them. I didn't say what KNC is attempting is logical or feasible. In fact it might be their biggest mistake yet since they seem to be purposely releasing miners into the wild that could potentially be extremely hazardous.

If they are only using 1 connector for 450W they better pull a approved PSU list out of their asses, the cables should be fine on most high end psus but the quality of the pci-e connectors can vary quite a bit as well.

I might add that 450w is way out of the specs of the connector itself from molex, from what i've heard it's 11A per pin (not talking about the pci-e specs that are even lower), but if they are good quality they should be able to handle it (on a good day) I have personally run close to 400w trough them (but only short term when doing rather extreme OC)

Table 4.3 - http://www.molex.com/pdm_docs/ps/PS-45558-001.pdf

and

http://www.molex.com/webdocs/datasheets/pdf/en-us/0457320001_PCB_HEADERS.pdf

rograz

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Quote from: xstr8guy on June 18, 2014, 08:58:03 PM

Quote from: samsonn25 on June 18, 2014, 08:19:16 PM

Yes. But that's the whole discussion. How can that 1 connector power up 450 + watts

I was just attempting to correct you misconceptions. You didn't appear to have read the news updates so I thought I'd link/quote them. I didn't say what KNC is attempting is logical or feasible. In fact it might be their biggest mistake yet since they seem to be purposely releasing miners into the wild that could potentially be extremely hazardous.

If they are only using 1 connector for 450W they better pull a approved PSU list out of their asses, the cables should be fine on most high end psus but the quality of the pci-e connectors can vary quite a bit as well.

I might add that 450w is way out of the specs of the connector itself from molex, from what i've heard it's 11A per pin (not talking about the pci-e specs that are even lower), but if they are good quality they should be able to handle it (on a good day) I have personally run close to 400w trough them (but only short term when doing rather extreme OC)

crashoveride54902

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Dream become broken often

And in other news: KNC is still screwing ppl...bought some hosted miners shipped to me from someone off forum...he says he has official statements and announcements from them that said they were upgrading them to nov. boards free of charge...and what do i receive...yep you guessed it Oct. jups Sad

oh and you'd think by now they would at least secure the flipping fan shrouds on after the first shipment hazard...nope...even some of the heatsinks where crooked...typical stuff that has been all over the forum for months now Sad

and with the neptombs...good luck with those if they didn't put another connector on the asic...if oct. jups OC'd can melt psu pcie connectors....you'll insta start a fire with these lol...well maybe not cause it'll probably just trip the psu before it would go poof...but then if they require 420w thur 1 pcie 6pin...how the heck did they test this? and why would they think this would work for the general public?

I wonder if they'll ship with their famous pcie extenders on just to increase the odds of fire? Grin

faetos

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gotta let a coin be a coin

Quote from: xstr8guy on June 18, 2014, 08:58:03 PM

Quote from: samsonn25 on June 18, 2014, 08:19:16 PM

Yes. But that's the whole discussion. How can that 1 connector power up 450 + watts

I was just attempting to correct you misconceptions. You didn't appear to have read the news updates so I thought I'd link/quote them. I didn't say what KNC is attempting is logical or feasible. In fact it might be their biggest mistake yet since they seem to be purposely releasing miners into the wild that could potentially be extremely hazardous.

BBQ Miners part deux! Maybe you all are getting some of these:

xstr8guy

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Glow Stick Dance!

Quote from: samsonn25 on June 18, 2014, 08:19:16 PM

Yes. But that's the whole discussion. How can that 1 connector power up 450 + watts

I was just attempting to correct your misconceptions. You didn't appear to have read the news updates so I thought I'd link/quote them. I didn't say what KNC is attempting is logical or feasible. In fact it might be their biggest mistake yet since they seem to be purposely releasing miners into the wild that could potentially be extremely hazardous.

Bogart

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Quote from: samsonn25 on June 18, 2014, 08:19:16 PM

Yes. But that's the whole discussion. How can that 1 connector power up 450 + watts

It can't. At least not for very long. It's a seriously retarded design.

The connectors don't always make perfect contact either. I have had to replace several of these 6-pin connectors on my AntMiner S1s after they fried themselves, and they only move around 190W each.

Soros Shorts

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Quote from: samsonn25 on June 18, 2014, 08:19:16 PM

Yes. But that's the whole discussion. How can that 1 connector power up 450 + watts

I believe the 6-pin Mini-Fit Jr can go up to 13A per circuit if the largest spec pins are used with the appropriate gauge wires. That is 12V x 13A x 3 circuits = 468 watts.

Of course, that is pushing it and the PSU side of the connector might just burn out if not up to spec.

samsonn25

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Yes. But that's the whole discussion. How can that 1 connector power up 450 + watts

xstr8guy

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Quote from: samsonn25 on June 18, 2014, 07:11:32 PM

We are assuming 1 board per box. Perhaps there are 2 boards. Or by some amazing chance 2 connectors but they worded the announcement incorrectly.

http://forum.kncminer.com/forum/news-and-anouncments/46242-the-first-20-nanometer-chip-devoted-to-bitcoin

"The Neptune is a 1440-core 55x55 mm package tailor-made for the Bitcoin market. Each Neptune consists of 5 chips and comes in new sturdier enclosure and packaging. Using the speed offered by a true 20nm die process each Neptune churns out more than 3 TH/s while consuming only 2.1 KW at the wall. That works out to 0,7 watts per GH/s or less."

Wow, that was hard to find!

And a little bit more research and you find this...
https://www.kncminer.com/news/news-89

Notice the single PCI power connector?

samsonn25

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We are assuming 1 board per box. Perhaps there are 2 boards. Or by some amazing chance 2 connectors but they worded the announcement incorrectly.

Syke

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Quote from: RawDog on June 18, 2014, 07:03:20 PM

KnC delivered on spec and on time. Which other company did that?

Quite a few. Avalon, BitFury, ASICMiner, Bitmain, Spondoolies.

faetos

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gotta let a coin be a coin

Does anyone know if they can tell if they really do have 20nm chips as opposed to 28nm if they are going to ship you 5 boxes? What if they shipped Nov jups at 700G underclocked to conserve power and put them in 5 shiny boxes that would equal 3T.

RawDog

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Quote from: tzortz on June 18, 2014, 04:37:16 PM

Quote from: RawDog on June 18, 2014, 03:50:24 PM

I wish the fucking crybabies around here would shut up. KNC is delivering on time, on spec. All you pussies are just sad your Neptune isn't going to make 25X on investment. That isn't KNC's fault. Now, suck it up and quit bitching. What a fucking little girl.

You will burn in hell.

KnC delivered on spec and on time. Which other company did that?

Even Spondoolies which is all talk for the moment hasn't yet pulled this off.

Now everyone is complaining about the connector? Buy a fucking soldering gun assholes. KnC took a serious beating from all you crybabies and they still delivered on spec and on time. They even DOUBLED the hash for their customers - which they did not have an obligation to do, just to make things good. It wasn't KnC's fault the difficulty went so high. On the day I bought, it was my responsibility to figure that out. Yet KNC doubled my order just because they are fucking nice.

Everyone who posted anything against KnC was just a full raging dick. KnC rules. All you refunders are just bitter you missed it. Suckers.

kslavik

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Quote from: Cablez on June 18, 2014, 06:43:42 PM

We will have to wait to see what the final power numbers are going to be but the issue isn't with breaking up neptune boxes per PSU but really how much power each box draws looks to be more than the connector/pins are rated for...by a lot. Unless the power estimates for each board comes down to less than 300w each things will be interesting.

Each yellow cable can handle 75W, an 8-pin molex has 3 yellow cables (by spec) placing a total power to 225w, 6-pin pci-e cable has 2 yellow cables, so 150w max power output.

if a single sub-unit of the Neptune would draw 2100w/5 = 420w, it would need at least 6 yellow cables inside 2x 8-pin pci-e connectors.

Cablez

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I owe my soul to the Bitcoin code...

We will have to wait to see what the final power numbers are going to be but the issue isn't with breaking up neptune boxes per PSU but really how much power each box draws looks to be more than the connector/pins are rated for...by a lot. Unless the power estimates for each board comes down to less than 300w each things will be interesting.

shmadz

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Quote from: Cablez on June 18, 2014, 01:50:29 PM

Quote from: raskul on June 18, 2014, 01:44:02 PM

Quote from: dropt on June 18, 2014, 01:41:52 PM

Quote from: Phoenix1969 on June 18, 2014, 01:22:35 PM

if only a single asic and pcb per box, then why a safety hazard?
I't basically the same as the 28nm was then
edit: oh, i see.. 2100 watts/5 is 420 per plug...ouch Double connectors (pci splitter)may be in order..... wonder how hot those leads will be

Molex rates those Minifit-JR plugs at 8A per conductor. Since there are three, the plug itself is rated to 24A. KNC intends for you to run at 45.8% above the manufacturer's rating. Any thoughts on what happens after running something like this 24/7 at 45.8% above its rated capacity?

i'll give 'em a clue - you can roast marshmallows with it Wink

Those housings will not survive at those ratings and become brittle and then melt/burn out. I really hope that KnC can get the power down for these or it will be real interesting.

I don't like it one bit. I bought a couple 1300 W PSU so now what? I run 3 off one and 2 from the other? can I do 2.5 on each???

(btw thanks for the PSU switches, they work great)

follow up question, would I be able to run 4 modules from 1 of these?

http://www.hardocp.com/article/2014/02/13/antec_high_current_pro_platinum_1300w_psu_review/2

The Avenger

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Quote from: xstr8guy on June 18, 2014, 05:13:11 PM

Well, I was completely wrong about the Neptune never shipping and customers being forced into cloudmining, lol. But oddly, I don't regret my decision to go with the FrankenJup. At least I was able to hash for awhile before the network hashrate starts spiking +25% per difficulty adjustment. It's going to get ugly very soon because all of the big guns will be shipping. Yes, even BFL. Wink

The Frankenjup was a disaster, but at least you got to end your dealings with KNC, which is a very good thing.

I mean, KNC claim they got their Neptomb chips on Tuesday and said they will ship all Batch 1 this week and all Batch 2 next week. It total and utter lies. I don't know how they can write lies like that and sleep at night. Their children will be disgusted when they find out how KNC made their money through such lies and deceipt.

The pain for the Neptune customers is just beginning. You are lucky not to be involved!

xstr8guy

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Well, I was completely wrong about the Neptune never shipping and customers being forced into cloudmining, lol. But oddly, I don't regret my decision to go with the FrankenJup. At least I was able to hash for awhile before the network hashrate starts spiking +25% per difficulty adjustment. It's going to get ugly very soon because all of the big guns will be shipping. Yes, even BFL. Wink

Topic: Swedish ASIC miner company kncminer.com - page 383. (Read 3050076 times)