Topic: GekkoScience BM1384 Project Development Discussion - page 101. (Read 146665 times)
I never said BlackArrow. I said Bitmain and Canaan-Creative (Avalon). You couldn't pay us enough to work with BlackArrow hardware at this point.
Please RTFT before asking questions which have already been answered.
We have never expressed any interest in working with BlackArrow chips, anywhere, at all.
Minions are also BGA and require ~100A VRMs. We very likely will never design a miner around that type chip (which appears to rule out Spondoolies' gen3 chip) because it makes literally every step of the process unnecessarily complex. Complexity means added cost and also increases the odds of machine failure.
We have never expressed any interest in working with BlackArrow chips, anywhere, at all.
Yeah, using a CPU cooler makes zero sense for the chip style that everyone except Spondoolies uses. We likely won't be building any boards conducive to CPU coolers anytime soon.
So what would the plan for the Blackarrow chips be? Underclock the hell out of them and use a lot? That's the only thing I could think of.Probably to not use them. They are obsolete and made by scammers. I think when sidehack said "except spondoolies," he meant current gear. There are a few larger chips like KNC from the past.
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novak
Yeah, using a CPU cooler makes zero sense for the chip style that everyone except Spondoolies uses. We likely won't be building any boards conducive to CPU coolers anytime soon.
Yeah, I know Marto is the Technobit guy. I've not seen a Technobit product that had Bitmain chips on it. I have not actually seen any Technobit products personally, though we were supposed to have about 50 boards for hosting last August. I'd just as soon not do business with Technobit if I don't have to. I don't trust them at all.
Are you talking Bitmain or Avalon? The guy talking from Avalon is xiangfu
I'm emailing Janet. Several folks told me I should go straight to Yoshi so I'll look into that.
Please add 4x mounting holes at the corners of the board. 
You mean like the holes that are already going to be there?
I want to cool them with a waterblock instead of a heatsink.
Okay, strap 'em on a C1 waterblock.
I want to cool them with a waterblock instead of a heatsink.
Please no more watercooled miners. I loved my Habaneros, but dealing with a cooling loop is a little much at times.
Yeah, funny you should mention... My contact at Bitmain hasn't gotten me any good info about getting chips, but recommended I wait until their next-gen chip is available but I won't get any info about designing with it until it's released so when you factor in dev and prototype time I wouldn't have a working board to test until probably August, so sellable machines about September. I'm gonna see if I can find someone higher on the food chain to talk to.
Thats what I call being strung up properly! I suppose a lesson for all, not everyone that passes off as a bitmain representative is anything like they'd want you to believe, but then again, that is the art of passing off.
I want to cool them with a waterblock instead of a heatsink.
Please add 4x mounting holes at the corners of the board.
Yeah, funny you should mention... My contact at Bitmain hasn't gotten me any good info about getting chips, but recommended I wait until their next-gen chip is available but I won't get any info about designing with it until it's released so when you factor in dev and prototype time I wouldn't have a working board to test until probably August, so sellable machines about September. I'm gonna see if I can find someone higher on the food chain to talk to.
I um... I did get ahold of Canaan-Creative and they'll probably have a new chip out about the same time, maybe sooner. So if they're any more reasonable about getting datasheets and samples I might switch it up.
I um... I did get ahold of Canaan-Creative and they'll probably have a new chip out about the same time, maybe sooner. So if they're any more reasonable about getting datasheets and samples I might switch it up.
As long as the United States still has people that need jobs, we will never outsource manufacture to a different country.
Wow
Could you contact GE & several other large corporations & get them to see things that way
This thread brings back awesome memories of summer of 2013,when 1000's of us got involved with the Avalon Group Buys
Let's hope it dosen't turn out like them...due to Bitmain chips being late or not delivered
At least we don't have "preorder" money on the line!! Thanks sidehack!! Best of luck man!!
I understand what you are saying and it is perfectly fair, but I said "why not also manufacture in Europe or China"
If you can't sell into Europe or elsewhere because of taxes or delivery charges then you lose nothing by also manufacturing elsewhere.
However, I applaud what you are doing. Bitmain's U3 device used items that the home miner could easily source for themselves making it uneconomic to ship. Do what you do best of all.
If you can't sell into Europe or elsewhere because of taxes or delivery charges then you lose nothing by also manufacturing elsewhere.
However, I applaud what you are doing. Bitmain's U3 device used items that the home miner could easily source for themselves making it uneconomic to ship. Do what you do best of all.
Delivery costs from the US shouldn't be too bad. What happens in Europe is you get hit with VAT as there isn't any duty.
But its a misnomer to think you can get miners "Tax Free" by assembly or manufacture in Europe, whoever sells it still has to charge VAT on top.
Snazzy board. What regulator controller are you using? I haven't really found one with the features I want but I can work around what I got.
TI TPS51363. 
If i can get 100Mh/s for $50-100 Shipped to me, im good with that.
I sure hope you meant 100Gh/s nah! i meant KH/s !!!
If someone in Europe wanted to license the design and manufacture it themselves, sure. But anything with our logo on it will be Made in USA (specifically, Missouri). Keeping things local - within our own oversight at least - also means quality control. We can't make sure that someone 8000 miles away is doing things right all the time.
Girlfriend? Wife? Obviously you don't spend enough time working on awesome stuff if you have time for friends and things better than friends.
Girlfriend? Wife? Obviously you don't spend enough time working on awesome stuff if you have time for friends and things better than friends.
I understand what you are saying and it is perfectly fair, but I said "why not also manufacture in Europe or China"
If you can't sell into Europe or elsewhere because of taxes or delivery charges then you lose nothing by also manufacturing elsewhere.
However, I applaud what you are doing. Bitmain's U3 device used items that the home miner could easily source for themselves making it uneconomic to ship. Do what you do best of all.
If you can't sell into Europe or elsewhere because of taxes or delivery charges then you lose nothing by also manufacturing elsewhere.
However, I applaud what you are doing. Bitmain's U3 device used items that the home miner could easily source for themselves making it uneconomic to ship. Do what you do best of all.
The Prisma used a node-level FET as a backup current shunt to help keep voltages down on underperforming nodes. This doesn't really help efficiency since the power is being burned off in a FET instead of the ASIC, but it does help manage node-level voltages. I'm not sure how necessary it really is.
I thought that Prisma's FETs are simplified on S5's by using few schottky diodes like zener, each regular diode has 0.7V treshold, but using two in series can restrict maximum voltage to 1.4V approx. per chip, or using three schottky can adjust max. voltage at different level, but temperature will affect it significantly. So I wish you good luck tuning this circuit.
Regarding size and power - I think there might be a demand for passive or ultra quiet miners for home miners - remember that most of us upgraded from Girlfriend 7.1 to Wife 1.0a who is very sensitive about our hobbies, especially when they are noisy. A heating panel with 450W can be good starting point, output power can be "programmed" by switch with pre-defined voltage/freq. Just on fly idea. Nowadays best eff vs ROI is around 0.75W/GHs.
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