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4201
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Alternate cryptocurrencies / Mining (Altcoins) / Re: Swedish ASIC miner company kncminer.com
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on: October 14, 2013, 05:02:58 AM
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Now I want to know how a whole datacenter went down for knc hosted customers LOL.
Or is there some maint I'm not aware of.
Looking at mine. It's 0GH/s. Looking at bargraphics. He went from 4.5TH/s to 500GH/s. Which is pretty strange. He still has one miner up and running out of 10.
Mmm seems like he's slowly going down to 0GH/s now.
Maybe all the boards caught fire due to "bad" PSUs and the Halon system engaged. Just kidding but it is bizzare that the entire network went dark at the same time. A route configuration issue maybe? Janitor tripped over ethernet cable? |
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4202
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Bitcoin / Hardware / Re: Butterfly Labs New 600GH "Mining Card" - RED FLAGS?!?!
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on: October 14, 2013, 04:56:39 AM
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BFL said they did their tape out back in August.
Please provide a past tense quote. IIRC BFL stated the tapeout was scheduled for August. End of August came and not a peep from them on that. Cointerra stated they were scheduled to tapeout in first week of Oct and that date passed with not a peep from them. |
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4203
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Bitcoin / Hardware / Re: Butterfly Labs New 600GH "Mining Card" - RED FLAGS?!?!
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on: October 14, 2013, 04:47:12 AM
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Cointerra said on their press release last month that tape out was scheduled for the first week of October, I just want to know if that happened, because that's as late as you would want to be for pre-Xmas shipping. First week came and went and there was not a peep from Cointerra. Generally the three largest milestones in an ASIC products are 1) devices shipping 2) chips have arrived 3) tapeout complete while Cointerra has never come out and said "we haven't completed out tapeout" they have simply said nothing. Given the huge significance of a completed tapeout (which also signifies NRE costs are complete AND the company has paid for the first batch of wafers) it would be "strange" for a company to complete that milestone and remain silent. So it looks like they're running behind....as one would expect on such a new product. This means BFL will not make its December deadline, unless they're buying from KNC, and paying out the nose. No it means if Cointerra is running behind then Cointerra might not meet their deadline. Nothing more. The rest is just dubious conjecture on your part. |
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4204
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Bitcoin / Hardware / Re: Butterfly Labs New 600GH "Mining Card" - RED FLAGS?!?!
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on: October 14, 2013, 04:46:08 AM
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Nobody knows if BFL is using Cointerra, there's just no other way they can get 28nm that fast any other way. You base this on what? BFL timeline insn't significantly more aggressive then KNC, Cointerra, HF, or Bitfury. I wouldn't touch BFL with a ten foot pole but the idea that there is no other possible option except the unsupported claim you made is just false. |
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4205
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Bitcoin / Hardware / Re: Butterfly Labs New 600GH "Mining Card" - RED FLAGS?!?!
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on: October 14, 2013, 04:43:33 AM
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Cointerra said on their press release last month that tape out was scheduled for the first week of October, I just want to know if that happened, because that's as late as you would want to be for pre-Xmas shipping. First week came and went and there was not a peep from Cointerra. Generally the three largest milestones in an ASIC products are 1) devices shipping 2) chips have arrived 3) tapeout complete while Cointerra has never come out and said "we haven't completed out tapeout" they have simply said nothing. Given the huge significance of a completed tapeout (which also signifies NRE costs are complete AND the company has paid for the first batch of wafers) it would be "strange" for a company to complete that milestone and remain silent. |
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4206
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Bitcoin / Hardware / Re: Butterfly Labs New 600GH "Mining Card" - RED FLAGS?!?!
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on: October 14, 2013, 04:40:11 AM
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Cointerra led on that tapeout was done a couple months ago but they have never outright stated this. I mean, the chip has to be done by now if they're shipping end product in less than 3 months. BFL has never confirmed they have completed taepout either. They simply set a vague timeline and the date passed without confirmation. Why would a chip need to be completed if someone is shipping a miner in 3 months? It took KNC <7 days to go from chip deliver to first miner shipping. |
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4208
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Bitcoin / Hardware / Re: Butterfly Labs New 600GH "Mining Card" - RED FLAGS?!?!
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on: October 14, 2013, 04:17:28 AM
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Yeah i would like to know aswell, Could we PLEASE get back on topic! The Cointerra chip is 500GH/s isn't it? The BFL is 300GH/s. If Cointerra's 500gh/s chip is slowed down to 300gh/s, it will consume less power and produce less heat and BFL might be able to stick two on the Monarch board after all. Why would they stick 2 chips when Cointerra is gonna rape them on price? BFL already can't compete on price with Cointerra, putting 2 chips will cost significantly more so it doesn't make sense. Price =/= cost. Raw ASIC (based on die space and estimated wafer cost) is on the order of $0.50 per GH. If a company cost was double their competitor would it really matter in the short term? For the record I don't believe BFL is using a Cointerra chip but cost has nothing to do with it. |
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4210
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Alternate cryptocurrencies / Mining (Altcoins) / Re: Swedish ASIC miner company kncminer.com
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on: October 13, 2013, 10:18:18 PM
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At this point I'd like to have at least a couple of controller boards.
edit: And BeagleBoards, but I can get those quickly and easily.
Ah ha! Somehow I came to understand a "controller" board, attached to the BBB, is something other than the main board that the ASIC modules are mounted on. So, is it a simple matter to remove the KnC stock BBB and add a standard BBB having a 5v barrel connector, a USB port and the RJ45 connector? I assume one can add to the apt source list and get programs for wifi if one has a mind to. No it would seem you still have it wrong. Each miner comes with a BB plus a custom controller designed and built by KNC. The BB connects to the controller board and the controller board has 4 (6 on some versions) connectors to the individual ASIC boards. Mercury: BB ----> Custom Controller -----> 1x ASIC board Saturn: BB ----> Custom Controller -----> 2x ASIC board Jupiter: BB ----> Custom Controller -----> 4x ASIC board The BB is black portion mounted upside down in the middle. The rest is a custom KNC design. The board brings up a lot of interesting questions. There are connectors for a second BB on the left. The square on the right is almost certainly an FPGA although KNC blured the model out (a customer could take an unblurred photo). Looks like the BB communicates with the FPGA which acts as a data manager for the individual mining boards.  |
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4211
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Alternate cryptocurrencies / Mining (Altcoins) / Re: Swedish ASIC miner company kncminer.com
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on: October 13, 2013, 10:10:22 PM
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So, the controller board won't mount on another BBB, one yet having a USB port, say for wifi?
That wasn't the issue. A Jupiter consists of: 1 case (easily replaced or exchanged) 1 BB (bought off the shelf) 1 custom controller board (can only be obtained from KNC or reverse engineered) 4 ASIC boards, data cables, power cables, and heatsinks (easily split into 2 smaller units) To split a 4 board system into 2x two board systems would require 2 custom controller boards. Getting an extra BB off the shelf is easy to do but it isn't going to do much unless you happen to have another customer controller board lying around. If KNC had a "spare parts" website where one could buy an extra controller board then it would be very easy to reconfigure the design into multiple systems. |
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4212
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Bitcoin / Hardware / Re: HashFast announces specs for new ASIC: 400GH/s
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on: October 13, 2013, 10:02:56 PM
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You don't need a 1U control unit.
Each Sierra is self contained (cooling, power, 3x ASIC modules, case, and a controller/host). The only advantage of the 1U control unit is that it would allow a single host to control up to 10 Sierras (30 hashing modules). Also HF has indicated that the modules are connected to the "host" by USB. This means anything which can run cgminer can be a host. You can use the included rPi host in the Sierra and/or BabyJet or you could connect multiple hashing modules to a dedicated computer for a custom solution. Although HF hasn't provided the specs my guess is the 1U "control unit" is just an entry level 1U server running some form of linux and cgminer. Instead of configuring a farm through the 10 Sierra rPi hosts all 30 modules are connected by USB to the single server for ease of management.
Still if you want to go w/ a BabyJet instead, HF has indicated they intend to sell just modules in the future although no date or price has been provided. A single sierra is likely a better deal though. as to upgrade a Babyjet to handle a second module will require a larger power supply and a second cooling loop (or larger radiator). The sierra comes out of the box ready from day 1 for 1.2 TH/s.
I thought so too but it turns out that the BabyJet is self contained, it has the Rapberry Pi, but the Sierra does not: We don't want to risk overloading the limited resources of a Raspberry Pi by running more than two mini-boards (formerly 'modules') off one of them.
So we recommend something more powerful for one or more Sierras.
so you will have to provide some kind of system running cgminer with USB to hook up the Sierra to. The Sierra is not self contained Additionally, directly from their website under Product Description: System Specifications
Contains 3 HashFast Golden Nonce (GN) ASICs
Performance: 1,200 Ghash/s at nominal clock speed
Chassis: 2U rack mounted
Cooling System: High performance liquid cooling on each of 3 chips, dissipates heat via back mounted radiator
Requires a 1U control unit I stand corrected. |
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4213
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Alternate cryptocurrencies / Mining (Altcoins) / Re: Swedish ASIC miner company kncminer.com
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on: October 13, 2013, 08:06:49 PM
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Power-consumption I read in here is now down to 0.85W => you can run your miner way longer than thought. More like >1.1 J/GH. Still that is a lot better than the original 2 J/GH estimate. You pay for wattage at the wall, that is the number that matters. I haven't seen a single report by end user of kill-a-watt showing <500W for system @ 500 GH/s. no..it is 1w/GHs... avg 545 gh/s in cgminer...530-540 Watt at kill-o-watt You measured this yourself? Others have reported higher consumption. Can you let me know the power supply and AC voltage? Also does your rig the 4 or 8 VRM version? |
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4214
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Bitcoin / Hardware / Re: HashFast announces specs for new ASIC: 400GH/s
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on: October 13, 2013, 08:02:02 PM
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Im interested in to order Dec 15 batch BabyJet, but do you have plans to sell upgrade 400 > 800 for it?
Cant buy Sierra as I dont have 1U control unit.
You don't need a 1U control unit. Each Sierra is self contained (cooling, power, 3x ASIC modules, case, and a controller/host). The only advantage of the 1U control unit is that it would allow a single host to control up to 10 Sierras (30 hashing modules). Also HF has indicated that the modules are connected to the "host" by USB. This means anything which can run cgminer can be a host. You can use the included rPi host in the Sierra and/or BabyJet or you could connect multiple hashing modules to a dedicated computer for a custom solution. Although HF hasn't provided the specs my guess is the 1U "control unit" is just an entry level 1U server running some form of linux and cgminer. Instead of configuring a farm through the 10 Sierra rPi hosts all 30 modules are connected by USB to the single server for ease of management. Still if you want to go w/ a BabyJet instead, HF has indicated they intend to sell just modules in the future although no date or price has been provided. A single sierra is likely a better deal though. as to upgrade a Babyjet to handle a second module will require a larger power supply and a second cooling loop (or larger radiator). The sierra comes out of the box ready from day 1 for 1.2 TH/s. |
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4215
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Alternate cryptocurrencies / Mining (Altcoins) / Re: Swedish ASIC miner company kncminer.com
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on: October 13, 2013, 07:57:46 PM
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Power-consumption I read in here is now down to 0.85W => you can run your miner way longer than thought. More like >1.1 J/GH. Still that is a lot better than the original 2 J/GH estimate. You pay for wattage at the wall, that is the number that matters. I haven't seen a single report by end user of kill-a-watt showing <500W for system @ 500 GH/s. |
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4216
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Bitcoin / Hardware / Re: KnCMiner Jupiter Miner First Impressions
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on: October 13, 2013, 07:53:55 PM
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How they come back the dead core?
What they do?
Maybe if we put more power psu like 1000w will have solution?
The power supply can't supply more power than the DC modules can convert. 4 DC modules @ 40A each = 160A. Chip nominal voltage is 0.750 VDC so that is 120W output per board. By spec the DC converters are about 90% efficient that means 133W input. If you assume they are running hot and thus less efficient maybe 150W input. 4x 150W = 600W of 12VDC. Throw in another 6W per fan * 6 fans + 10W for the host you are looking at <650W. On the firmware which overvolts the chip to 0.9V you are still talking <770W. Now the 8 VRM version might be able to push the chips harder given enough power. |
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4218
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Bitcoin / Hardware / Re: HashFast announces specs for new ASIC: 400GH/s
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on: October 13, 2013, 07:44:00 PM
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Endless arguments (KnC's 453454 page thread) get us where? Nowhere. At the end of the day the back and forth of meaningless drama does not affect how soon we're getting our units. MPP details is a different story, they quickly said they will tighten up the policy and announce it, so all we can do is wait for that official announcement.
+1 This. Just wait for final policy. Obviously someone in the company jumped the gun. It is the weekend, why not give them until Monday? |
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4219
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Alternate cryptocurrencies / Mining (Altcoins) / Re: Swedish ASIC miner company kncminer.com
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on: October 13, 2013, 04:14:27 PM
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THEN WHY if all running at once leads to terrible results? Shouldn't that miner still hash ~510 like it did before I used .95 firmware? Nope it sent it down to ~360 and best I can do now is run it around ~410 with .94, an auto restart script and cooling
KNC, how about you just send me two more BeagleBoards so I can make this a Saturn and two Mercurys? If KNC won't send you a beaglebone you may just want to buy one off the shelf. The model you are looking for is "beaglebone black" it generally retails for less than $50. On edit: that won't work I forgot about the fact that KNC isn't connecting the boards directly to the BB it is BB---> custom control PCB ---> boards. Based on your reported observations it would appear components are not being adequately cooled. One thing I would point out is that the output and efficiency of a VRM declines as ambient temp rises. The regulators used by KNC are rated at 40A when they are operating at <70C. As the temp rises the rated output declines. It is only 30A to 35A (depending on airflow) at 85C and the model being used is rated beyond 85C but the output would continue to decline. The ruggedized version for example only outputs 20A to 25A (depending on airflow) at 100C. |
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4220
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Alternate cryptocurrencies / Mining (Altcoins) / Re: Swedish ASIC miner company kncminer.com
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on: October 13, 2013, 03:57:00 PM
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HashFast customers may not be mining yet but that "miner protection" puts them in a more comfortable position. But then of course they had to raise the price for it...lol Like Puppet said, the chips are probably $50 each. The production cost is largely irrelivent. What matters is the market price. What is 1 GH/s in hashing power worth on the market. That gets more complicated due to the fact that it will decline over time. Is 1 GH/s delivered in Jan worth $10 per GH/s? Definitely not. How about $5 per GH/s? $3 per GH/s? That is what the MPP is worth. It isn't necessarily HF price in Jan but the lowest price available anywhere (all competitors, new and used equipment). Obviously 1 GH/s has some value in the future. BFL, BitFury, KnC, HashFast...the only people making money in the ASIC generation. No different than any other gold rush. The rush will end eventually and mining will become boring low margin business. Those with the most efficient setup will profit and those who are marginal will not. |
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