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Author Topic: GekkoScience is now dabbling with 16nm ASICs for new designs  (Read 76203 times)
ZACHM
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December 13, 2016, 05:00:31 PM
 #381

I don't know if you did last time... But can/did you take any pictures of the manufacturing process?
I would love to see it.  Smiley

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December 13, 2016, 05:11:38 PM
 #382

I don't know if you did last time... But can/did you take any pictures of the manufacturing process?
I would love to see it.  Smiley

Definitely!! I have no idea about how these kinds of things are made but have always wanted to see it. Especially seeing as its something rather bespoke for the Bitcoin community.

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December 13, 2016, 06:08:14 PM
Last edit: December 13, 2016, 06:22:08 PM by Biodom
 #383

The short-term projects are

2-chip stick using BM1384, wholesale price about $30, estimated 15GH/5WDC
10-chip BM1385 pod, wholesale price about $70, estimated 250GH/60WDC

Longer-term projects are

2-chip stick using BF16, wholesale price around $40, estimated 60GH/5WDC
11-chip BF16 pod, wholesale price around $125, estimated 650GH/75WDC
33-chip BF16 S1/3/5 refit board, wholesale price unknown, estimated 2TH/200W



I have, perhaps, a naive question. It might have been mentioned somewhere already, my apologies.
Say, 10-chip BM1385 pod needing 60W. What would be the proper/best way to power it?
I get the sticks, you connect powerhub's little brick to powerhub via round connector, then power the stick via USB port.
the hub would have the same type of connector (round), PCIe or something else altogether?
EDIT: OK so round powered USB connector=barrel jack, so i assume that as long as it provides 60W, it should be OK to just re-purpose the powered hub power supply.
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December 13, 2016, 06:12:53 PM
 #384

The pod is designed to be 12cm square with mounting holes at each corner for an enclosure or tower stack standoffs. It will ship with rubber feet adhered to these corners. The heatsink will be screwed on through an aluminum base plate to help maintain planar contact of the chips underneath. The pods will take in USB from either a Mini or B plug, and will take power through a barrel jack or PCIe 6-pin. There is a second 6-pin for daisychaining power to multiple boards from one master cable. All these connections are lined up along one side. On the manual-adjust pods (short-term plan) there's also a small potentiometer which can be turned to adjust core voltage. BF16 pods will implement software-adjustable voltage control with internal calibration.

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December 13, 2016, 06:29:15 PM
Last edit: December 13, 2016, 08:11:59 PM by NotFuzzyWarm
 #385

<snip>
I have, perhaps, a naive question. It might have been mentioned somewhere already, my apologies.
Say, 10-chip BM1385 pod needing 60W. What would be the proper/best way to power it?
I get the sticks, you connect powerhub's little brick to powerhub via round connector, then power the stick via USB port.
the hub would have the same type of connector (round), PCIe or something else altogether?
EDIT: OK so round powered USB connector=barrel jack, so i assume that as long as it provides 60W, it should be OK to just re-purpose the powered hub power supply.
Almost. AFAIK the USB does not supply power. It's just coms. Power input is only through the barrel (a 2-pin power connector) or PCIe jacks and power input is 12V nominal, not the 5v as a (edit: typical standard) USB hub supply usually provides.

Example of a PCIe to barrel adapter... https://www.google.com/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&ved=0ahUKEwj_k4mH5_HQAhWLgFQKHbtpDUEQjRwIBw&url=https%3A%2F%2Fbitcoinware.net%2Fproducts%2Fgridseed-asic-accessories-highest-quality-pci-e-to-barrel-plug-power-adapter&psig=AFQjCNHL5XxyX0y60Xz6l2YdsEG_VnWtEw&ust=1481740337415027

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sidehack
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December 13, 2016, 06:37:53 PM
 #386

Yep, power is 12V. Technically you could go down to around 6V and it'd probably still work, but your fan would not be spinning. It's designed for a 12V-nominal power input, hence the PCIe 6-pins as well. There is no power drawn from the USB connection to the controller.

So if your USB hub takes in 12V power, sure it'd still work. 12V5A bricks are super common so that's what I'm designing the "stock" power draw around, but since voltage and frequency are adjustable that power draw is by no means mandated.

The BF16 pod may have a higher-power stock setting, I'll know more once I start playing with the hardware directly.

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December 13, 2016, 06:41:12 PM
 #387

<snip>
I have, perhaps, a naive question. It might have been mentioned somewhere already, my apologies.
Say, 10-chip BM1385 pod needing 60W. What would be the proper/best way to power it?
I get the sticks, you connect powerhub's little brick to powerhub via round connector, then power the stick via USB port.
the hub would have the same type of connector (round), PCIe or something else altogether?
EDIT: OK so round powered USB connector=barrel jack, so i assume that as long as it provides 60W, it should be OK to just re-purpose the powered hub power supply.
Almost. AFAIK the USB does not supply power. It's just coms. Power input is only through the barrel (a 2-pin power connector) or PCIe jacks and power input is 12V nominal, not the 5v as a USB hub supply usually provides.

Example of a PCIe to barrel adapter... https://www.google.com/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&ved=0ahUKEwj_k4mH5_HQAhWLgFQKHbtpDUEQjRwIBw&url=https%3A%2F%2Fbitcoinware.net%2Fproducts%2Fgridseed-asic-accessories-highest-quality-pci-e-to-barrel-plug-power-adapter&psig=AFQjCNHL5XxyX0y60Xz6l2YdsEG_VnWtEw&ust=1481740337415027

my powered hubs have a brick, which output is 12V through round connector (OK, barrel jack). Then, you connect the barrel jack to powerhub itself, which then provides 5V to USB. therefore, one can just take the brick and shove the barrel jack into pod, I assume. i don't see why not.
Of course, if you want to buy larger PSU, go for it. It happens that I have a multitude of such powered hubs and thought of re-purposing them.
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December 13, 2016, 06:47:44 PM
 #388

sidehack mentioned an estimate of 75w for the BF16 pods. If you plan on running multiple pods, I would think it would easier and more efficient to use a PSU with PCIe cables.

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December 13, 2016, 06:48:40 PM
 #389

Estimates posted at least once in this thread already give you a power range from about 45W to upward of 100W depending on voltage and frequency setting. So yeah, you could run a BF16 pod off a 70W brick.

The BF16 pod will have input power monitoring integrated. It'll be on vh to build it into code, but that's intended to be used for power limiting at the cgminer level. You could feed cgminer your maximum allowable power draw and it'd limit [something, depends on implementation] to try and maximize hashing without going over that threshold. If nothing else, there should still be a power-draw readout somewhere in cgminer that you can use to manually tune it.

This is an advanced feature requiring ADCs on an onboard microcontroller communicating directly with the cgminer driver, and as such will not be implemented on the short-term project pod. That's specifically for the advanced controls set being designed for BF16 projects.

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December 13, 2016, 06:51:41 PM
Last edit: December 13, 2016, 07:03:15 PM by Biodom
 #390

sidehack mentioned an estimate of 75w for the BF16 pods. If you plan on running multiple pods, I would think it would easier and more efficient to use a PSU with PCIe cables.

I don't want any more PSUs in the house, seriously  Grin, and the idea is to make them less visible.
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December 13, 2016, 07:08:28 PM
 #391

I added the daisychain PCIe by request, for folks who want to use a larger single PSU to run stacks at a time without octopus cabling. It's not a bad idea, so long as people keep track of the power limits a single cable can do.

I plan on using the same footprint and, ideally, the same connector layout on BF16 pods.

Also, editing posts after replies makes conversation confusing.

Cool, quiet and up to 1TH pod miner, on sale now!
Currently in development - 200+GH USB stick; 6TH volt-adjustable S1/3/5 upgrade kit
Server PSU interface boards and cables. USB and small-scale miners. Hardware hosting, advice and odd-jobs. Supporting the home miner community since 2013 - http://www.gekkoscience.com
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December 13, 2016, 07:14:27 PM
 #392

This is off-topic and sidehack, if you want it removed let me know, but I thought posting it here might help.

I started a blockchain lottery, 3% of collected funds will be sent to 1BURGERAXHH6Yi6LRybRJK7ybEm5m5HwTr

https://bitcointalk.org/index.php?topic=1712963

I don't know if anyone else will join this, but I thought it might be fun.

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December 13, 2016, 07:18:30 PM
 #393

While I officially do not endorse nor participate in gambling... sure, thanks.

Cool, quiet and up to 1TH pod miner, on sale now!
Currently in development - 200+GH USB stick; 6TH volt-adjustable S1/3/5 upgrade kit
Server PSU interface boards and cables. USB and small-scale miners. Hardware hosting, advice and odd-jobs. Supporting the home miner community since 2013 - http://www.gekkoscience.com
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December 13, 2016, 07:18:57 PM
 #394

I added the daisychain PCIe by request, for folks who want to use a larger single PSU to run stacks at a time without octopus cabling. It's not a bad idea, so long as people keep track of the power limits a single cable can do.

I plan on using the same footprint and, ideally, the same connector layout on BF16 pods.

Also, editing posts after replies makes conversation confusing.

I think that it is still pretty coherent; deleted one post because it was redundant.
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December 13, 2016, 07:21:18 PM
 #395

Yeah, just threw me for a loop for a minute there when something I had responded to disappeared. Still works but I couldn't find what I was expecting to.

Anyways, your questions brought up some good information. I'll get around to updating the first post with fresh data sometime today.

Cool, quiet and up to 1TH pod miner, on sale now!
Currently in development - 200+GH USB stick; 6TH volt-adjustable S1/3/5 upgrade kit
Server PSU interface boards and cables. USB and small-scale miners. Hardware hosting, advice and odd-jobs. Supporting the home miner community since 2013 - http://www.gekkoscience.com
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December 13, 2016, 08:11:04 PM
 #396

ASICs suck. Do you guys remember CPU miners when things were equal?

Bitcoin Ocho is bringing back CPU miners. Google it, it's all over the internet.

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December 13, 2016, 08:14:46 PM
 #397

<snip>
my powered hubs have a brick, which output is 12V through round connector (OK, barrel jack). Then, you connect the barrel jack to powerhub itself, which then provides 5V to USB. therefore, one can just take the brick and shove the barrel jack into pod, I assume. i don't see why not.
Of course, if you want to buy larger PSU, go for it. It happens that I have a multitude of such powered hubs and thought of re-purposing them.
Then yer golden.
Edited my post to reflect not using a standard USB hub supply vs a custom or BC1.2 high power hub & supply.

For bitcoin to succeed the community must police itself - Joshua Zipkin aka Joshua Alexander leaked AMT A1 miner skype chats
How a miner mfgr SHOULD operate: HaggsFIN trip to Canaan My info useful? Donations welcome! 1Fuzzyk398kDWVjuC5qPX5v6CjSkvbgAbd
-Support Sidehacks miner development. Donations to:   1BURGERAXHH6Yi6LRybRJK7ybEm5m5HwTr
ZACHM
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December 13, 2016, 08:15:10 PM
 #398

Google it, it's all over the internet.

So is child porn, but that don't make it legit or legal, ethical, moral, etc.

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December 13, 2016, 08:30:34 PM
 #399

Here is a great brick I have one of them.


https://www.trcelectronics.com/ecomm/pdf/hlg240h.pdf


will do 192 watts 24/7


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I see BTC as the super highway and alt coins as taxis and trucks needed to move transactions.
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December 13, 2016, 08:53:03 PM
 #400

Here is a great brick I have one of them.


https://www.trcelectronics.com/ecomm/pdf/hlg240h.pdf


will do 192 watts 24/7



They look really good. Especially the Voltage adjustable ones with the terminals (C type I think). One of those could easily power a couple of pods.

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