Topic: Swedish ASIC miner company kncminer.com - page 391. (Read 3050076 times)

Quote from: raskul on June 17, 2014, 01:02:35 PM

Also thats At-The-Wall numbers, take into account 80% efficiency PSU's and thats easily 0.56W chip level consumption. Not too bad really.

Yeah, a 20nm chip that's about as efficient as Spondoolie's 40nm chip. Spondoolie's 28nm chip will slaughter KnC.

+1

Talk about fail. KNC have no advantage from 20nm. It is the same Jupiter chip just made with more expensive technology with minimal gain. This chip loses by design.
Bitfury can do almost the same with 55nm at datacenter level using hundreds of cheap chips.
While KNC is making CPU style chips which all need active CPU fan cooler. Fail from desing, blade style miner with many chips is more cost effective to make + cool.
Big big fail they will lose 2014.

Bitmain next gen. is taping out soon.
28nm and will be next best chip.

Phoenix1969

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Quote from: Phoenix1969 on June 17, 2014, 01:01:01 PM

Quote from: Phoenix1969 on June 17, 2014, 01:01:01 PM

How many PCI cables needed?
This is more or less 200Amp, or 10-12 pci 6 pin connectors?

2100W under a single fan?
Can those heat amounts be dissipated through that small construction?

Also, how is the heat being dissipated from the chip?

Water cooling? Or ? ? ?

I'd guess that 5 of those boxes makes a full neptune, so 3000/5=600GH per box. 600*0.7W/GH = 450W per box.

LOL really ?!! 5 machines = 1 Neptune , jeez why could they not have just split it into two 1.5TH boxes instead of 6x600

no, not really. It's a single box.

quoted for future lolz

it certainly bamboozled me when I got an email telling me it was 5 boxes.

you did? I'd be "bamboozled too, lol that would mean 1 pcb, 1 asic, 1 controller, and one BBB for every box unless they totally re-designed the pcb to include all...? Sure seems like the expensive way to go unless this is an RMA planned event....

s1gs3gv

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ex uno plures

So batch1 and batch2 customers will get another Neptune (free) in early August it sounds like.
And meanwhile, 3TH @ 15% difficulty increase should get you about 4 1/4 BTC between now and the beginning of August.

Which implies that unless BTC/fiat increases a lot between now and then that $5000 SP30 pre-orders shipped by the 1st of August will be on par or ahead of the ROI game.

Unless KNC bump the Neptune via firmware improvements. Does KNC have a history of doing that on products ?

~L)L~

raskul

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How many PCI cables needed?
This is more or less 200Amp, or 10-12 pci 6 pin connectors?

2100W under a single fan?
Can those heat amounts be dissipated through that small construction?

Also, how is the heat being dissipated from the chip?

Water cooling? Or ? ? ?

I'd guess that 5 of those boxes makes a full neptune, so 3000/5=600GH per box. 600*0.7W/GH = 450W per box.

LOL really ?!! 5 machines = 1 Neptune , jeez why could they not have just split it into two 1.5TH boxes instead of 6x600

no, not really. It's a single box.

quoted for future lolz

it certainly bamboozled me when I got an email telling me it was 5 boxes.

Phoenix1969

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How many PCI cables needed?
This is more or less 200Amp, or 10-12 pci 6 pin connectors?

2100W under a single fan?
Can those heat amounts be dissipated through that small construction?

Also, how is the heat being dissipated from the chip?

Water cooling? Or ? ? ?

I'd guess that 5 of those boxes makes a full neptune, so 3000/5=600GH per box. 600*0.7W/GH = 450W per box.

LOL really ?!! 5 machines = 1 Neptune , jeez why could they not have just split it into two 1.5TH boxes instead of 6x600

no, not really. It's a single box.
BTW... Titan shouldn't be far behind this....

tolip_wen

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Fun with numbers

3T divided by 5 ASIC = 600GH/s per chip

600G divided by 1440 core = 416 MHz per core

run same cores @ 500MHz for 3.6T
(my best guess for initial target speed)

YMMV

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Mine is still showing PAID... Sad

111XX Paid Bank Transfer/ Invoice UPS Zone 7 10,166.00 $ 2013 November 26 14:26

dropt

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Quote from: rograz on June 17, 2014, 12:24:32 PM

Quote from: dropt on June 17, 2014, 11:37:22 AM

20nm @ ~0.7W/GH

Talk about a fail.

All it means is that those chips are clocked more towards their frequency ceiling than for efficiency, so for KNC it's a success since they get to send as few chips as possible to fulfill each order. They could easily have delivered sub 0,5W/GH but it would have cost them more to do so, so why would they?

Also thats At-The-Wall numbers, take into account 80% efficiency PSU's and thats easily 0.56W chip level consumption. Not too bad really.

Compare that to AM's 40nm, or Bitfury's Gen2 55nm.

rograz

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Quote from: Syke on June 17, 2014, 12:35:05 PM

Quote from: bitcoiner23 on June 17, 2014, 12:34:17 PM

Also thats At-The-Wall numbers, take into account 80% efficiency PSU's and thats easily 0.56W chip level consumption. Not too bad really.

Yeah, a 20nm chip that's about as efficient as Spondoolie's 40nm chip. Spondoolie's 28nm chip will slaughter KnC.

Yes let's compare a company that tunes their offerings for efficiency with one that tunes their for performance, you have no idea what the KNC chip is capable of until you undervolt one yourself or get some data out of KNC.

jelin1984

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Yes the hashing speed is too lowwwwwww

raskul

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FIVE boxes? *slow descent into the dark ages pending*

on the plus side - you will be able to heat every room in your house (with enough PSU's)

dropt

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I think "one Neptune" will be these 5 Boxes and a controller board/box.
Wikipedia say one 6 PIN PCI-E can handle 75W - 8 PIN 150W. And they want to deliver 450W through one 6 PIN?
As a refund customer i'll grab some popcorn and watch these things catch fire Wink

A Mini Neptune will be 3 boxes and soon there will be solo boxes with ~500GH for ~$1000?
Compared to a RK-BOX ~440GH/S with 480W (they use 4*6PIN PCI-E) for $650 its a bad choice Tongue

Manufacturer's rating on the Molex Mini-fit JR is 8A per pin. That's 24A and these units are listed to draw 35A per plug.

I won't be surprised if they start melting.

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Also thats At-The-Wall numbers, take into account 80% efficiency PSU's and thats easily 0.56W chip level consumption. Not too bad really.

Yeah, a 20nm chip that's about as efficient as Spondoolie's 40nm chip. Spondoolie's 28nm chip will slaughter KnC.

bitcoiner23

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I think "one Neptune" will be these 5 Boxes and a controller board/box.
Wikipedia say one 6 PIN PCI-E can handle 75W - 8 PIN 150W. And they want to deliver 450W through one 6 PIN?
As a refund customer i'll grab some popcorn and watch these things catch fire Wink

A Mini Neptune will be 3 boxes and soon there will be solo boxes with ~500GH for ~$1000?
Compared to a RK-BOX ~440GH/S with 480W (they use 4*6PIN PCI-E) for $650 its a bad choice Tongue

semaster

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Quote from: tzortz on June 17, 2014, 12:07:51 PM

LOL really ?!! 5 machines = 1 Neptune , jeez why could they not have just split it into two 1.5TH boxes instead of 6x600

How do you want to split 5 into 2 ?

pedrosoft

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In what sense?

only 3 tera/hash !

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Quote from: rograz on June 17, 2014, 12:24:32 PM

How many PCI cables needed?
This is more or less 200Amp, or 10-12 pci 6 pin connectors?

2100W under a single fan?
Can those heat amounts be dissipated through that small construction?

Also, how is the heat being dissipated from the chip?

Water cooling? Or ? ? ?

I'd guess that 5 of those boxes makes a full neptune, so 3000/5=600GH per box. 600*0.7W/GH = 450W per box.

LOL really ?!! 5 machines = 1 Neptune , jeez why could they not have just split it into two 1.5TH boxes instead of 6x600

We have yet to see the final product, so its all guesswork fro now

Biffa

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Quote from: dropt on June 17, 2014, 11:37:22 AM

20nm @ ~0.7W/GH

Talk about a fail.

All it means is that those chips are clocked more towards their frequency ceiling than for efficiency, so for KNC it's a success since they get to send as few chips as possible to fulfill each order. They could easily have delivered sub 0,5W/GH but it would have cost them more to do so, so why would they?

Also thats At-The-Wall numbers, take into account 80% efficiency PSU's and thats easily 0.56W chip level consumption. Not too bad really.

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