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Author Topic: GekkoScience BM1384 Project Development Discussion  (Read 146144 times)
sidehack
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August 23, 2015, 05:10:12 PM
 #1641

I've got a dozen machines to strap boards onto, so that's about fifty boards right there. Being half-sized for an S1 heatsink, someone could rig up a half-heatsink and mount a 120mm fan directly to it and use the thing as a standalone quiet little miner. If the upgrade process was not difficult, and you know shipping will certainly be cheaper. One thousand boards is still well worth making and get a pretty good bulk price on PCBs and parts, which keeps the price nicely down for the end purchaser.

The boards would run on anything with USB and cgminer. If S3/S5 controllers have USB in hardware but not the jacks, it might not be too difficult to break it out but that's not a problem I've researched at all.

What community miner are you talking about? The rack-scale miner Novak and I are proposing? That meets the large-scale market sector but not folks like Phil who want something small and quiet but also not stupid. Is there an open-source S1-scale miner being talked about and I've overlooked it? Though, thinking about it... it might not be too hard to build an SP20-similar miner from two or three boards of the big'n with a single rear fan. Two boards should fit nicely cooled with a 120mm and run off a 750W PSU.

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
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Jake36
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August 23, 2015, 07:09:01 PM
 #1642

If by "old tech" you mean it has top-clock performance on par with the best bottom-clock performance from any chip ever openly sold, then yeah it's old tech.

The only problem I can forsee with upgrading S3 is controller. The boards would USB-tether to any generic control board (if you had 4 ports like on a Pi B+ you wouldn't even need a hub) but the S3 and S5 chassis ends are cut out for a specific shape what with the ethernet and LEDs. Might take a bit of jerryrigging to keep ethernet accessible and still be able to put the box on an S3. If you're not uncomfortable with whatever rigging is required (and of course we can test stuff out and try to figure out relatively standard solutions to that problem) there'd be no problem.

The halving is based on block count. Every time the diff goes up the halving gets that much closer. It'd take about 20% average changes to push it up into late spring but it could happen. That'd be freakin' terrible if we had 20% increases every change for the next nine months though.

Easiest way, just slot from the top chassis down to the ethernet hole, make a big "U" for cables to run through, and mount the Pi to the top of the cover or where ever wanted.

Pi is accessible and a side benefit is it's not inside of a hot miner.
Mudbankkeith
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August 23, 2015, 07:15:21 PM
 #1643

There must still be loads of S1, S1/3 upgrades and S3, units sitting in lonely neglected corners, all waiting to be lovingly revived with nice shiny T/h capable boards.

Bitmain are unlikely to come back with anything suitable to replace them.

Bring on the BM1385 chip. It may be old tech 28nm cleaned up and repackaged, but it could still fill a gap for the home miners and see the community through to the block reward halving due next spring.



Edit accepted:- Later next Summer.

If the easiest route is USB, then I would accept that a Pi B+ could be used to replace the S1 or S3 controller, after all the S5 already mounts a BBB and they are similar in size.

The S1 and S1/S3  models could still be used for the heatsincs, chasis and fans. (the big bits that are expensive to ship)

The next bigger option is to revive some 10 port Orico hubs, left over from Asic Erupter days. Then hook up to one of my mini PC's surviving from the same farm. (also I still have 3 working Pi B's).

If BFgMiner or CgMiner support was also available, Then it's all Plug and Play.

BTc donations welcome:-  13c2KuzWCaWFTXF171Zn1HrKhMYARPKv97
sidehack
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August 23, 2015, 07:20:38 PM
 #1644

The intent is to have cgminer support; BFG is out of our hands. A lot of my refit machines would probably be hub'd together for more than 4 boards to a controller. I'm not sure how possible it'll be but we're going to try and come up with a way to adjust voltages and clocks per board so you could actually tune on a per-board basis if you wanted.

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
philipma1957
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August 23, 2015, 07:50:41 PM
 #1645

I've got a dozen machines to strap boards onto, so that's about fifty boards right there. Being half-sized for an S1 heatsink, someone could rig up a half-heatsink and mount a 120mm fan directly to it and use the thing as a standalone quiet little miner. If the upgrade process was not difficult, and you know shipping will certainly be cheaper. One thousand boards is still well worth making and get a pretty good bulk price on PCBs and parts, which keeps the price nicely down for the end purchaser.

The boards would run on anything with USB and cgminer. If S3/S5 controllers have USB in hardware but not the jacks, it might not be too difficult to break it out but that's not a problem I've researched at all.

What community miner are you talking about? The rack-scale miner Novak and I are proposing? That meets the large-scale market sector but not folks like Phil who want something small and quiet but also not stupid. Is there an open-source S1-scale miner being talked about and I've overlooked it? Though, thinking about it... it might not be too hard to build an SP20-similar miner from two or three boards of the big'n with a single rear fan. Two boards should fit nicely cooled with a 120mm and run off a 750W PSU.


I know of at least 40+ sales of a miner that allows for   1.4th and 280watts.   There is a forum member less then 3 miles from me that would want 20 s-1 to sidehack upgrades.

I have 4 working s-3's I would upgrade.

I have a guy with a shop n the brooklyn navy yard 8 cent power.  he has 1x 30 amp 240 volt circuit waiting for good gear.

good gear in his case is quiet quiet quiet/ then power efficient.

So I am good for  20 + 5 + 15 pieces or  56th of hash.

with none of that in my home   and a few more for in house

lets  say 60 th  43 x 1.4th units of gear


I see BTC as the super highway and alt coins as taxis and trucks needed to move transactions.
Mudbankkeith
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August 23, 2015, 08:07:43 PM
 #1646

I have 6 s1/s3 upgrades that are now looking for new boards.

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bmoscato
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August 23, 2015, 10:18:10 PM
 #1647

I have 10 S1/S3 that I'd be interested in upgrading.
bmoscato
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August 24, 2015, 01:32:21 AM
 #1648

Any plans for something when the BM1385 chip is released?
sidehack
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August 24, 2015, 04:26:56 AM
 #1649

Nope, none at all. Except for everything talked about in the last three pages, I mean. Which includes a few paragraphs of quantitative discussion posted not 13 hours ago.

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
PlanetCrypto
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August 25, 2015, 03:16:40 PM
 #1650

I've got 10 S1's, 12 S3's, 22 C1's and they all need to be upgraded.
Hint hint.

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  Semux uses 100% original codebase
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notlist3d
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August 25, 2015, 03:36:02 PM
 #1651

I've got 10 S1's, 12 S3's, 22 C1's and they all need to be upgraded.
Hint hint.

Am I missing the hint?  Are you hinting on product coming out?
sidehack
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August 25, 2015, 03:42:31 PM
 #1652

I think it's more a hint to me that I need to get off my butt and build him some boards because he's gonna want a bunch of 'em.

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
VirosaGITS
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August 25, 2015, 04:36:54 PM
 #1653

I think it's more a hint to me that I need to get off my butt and build him some boards because he's gonna want a bunch of 'em.

I got about half a dozen too. Hint hint. Those S1 are just craving for an upgrade. They REALLY want it. ;P


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PlanetCrypto
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August 25, 2015, 06:45:59 PM
 #1654

I think it's more a hint to me that I need to get off my butt and build him some boards because he's gonna want a bunch of 'em.

No pressure as you really can't do squat (almost literally  Grin) until "the one who shall remain nameless" gets off their respective bums and sells chips.

Have a really good handle on what it's like to be a mushroom (kept in the dark and feed crap).

What a name for a company, Mushroom Development, LLC.  Shocked


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  Semux uses 100% original codebase
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elrippo
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August 25, 2015, 06:49:57 PM
 #1655

I really want those boards tooooo!!! I don't want to fead a big corporation if i can assist some guys doing their homework and earn a living with that tech!!!
The only thing i need to know, is what hardware i should keep from the old S1 and S3 to compile with the new boards?
The case, the fans, the controller boards...
I read that Novak is doing the controller boards with USB connection to the asicboards, so are you guys also working/producing the controller boards?
If so, i'll sell all my old S1 and S3 and build me a custom FormFactorCasing and attach some fans to it  Grin

For Advertisement. PM me to discuss.
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August 25, 2015, 06:53:12 PM
 #1656

Just curious what you guys envision doing with the old cards from S1's S3's and C1's if sidehack does end up producing an upgrade kit?

Are the old boards pretty much scrap at that point? Do they have resale value?

VirosaGITS
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August 25, 2015, 07:05:19 PM
 #1657

Just curious what you guys envision doing with the old cards from S1's S3's and C1's if sidehack does end up producing an upgrade kit?

Are the old boards pretty much scrap at that point? Do they have resale value?


S1 are probably done for, they bring little profit only to people with dirt cheap electricity. S3 are still good imo. I would run all the S3 i could get my hand on.
I guess the S1 extras could be resold to people that want to start little just to learn mining and maybe people who want to run them on free electricity.


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sidehack
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August 25, 2015, 07:16:57 PM
 #1658

I'd say keep the metal parts. Since boards are USB-tethered and run directly off cgminer (S1 boards would have fan headers as well) you could hub several together off a single controller or toss a Pi on each. Using USB spec and a good cgminer driver removes the hardware-specificity of the controller setup on S1/3/5, but unfortunately it also sorta removes the ability to use the exiting controller from S1/3/5 unless someone can come up with a ready solution for breaking out USB on those. I doubt the S1 controller can do it at all. You'll want heatsinks, fans and the frame pieces but most likely nothing electronics would carry over. It's unfortunate, but we think that's for the best in the long run. We want to treat the S1 form factor as a standard for midsize miner (and if you're following discussion for our rack standard proposal, the board size and shape might enter that formfactor as well), which means that using a fairly flexible standardized protocol is better than trying to back every new product into a particular hardware-specific connectivity implementation.

In related news...

Over sandwiches today (it is Tuesday after all) Novak and I talked over how to properly integrate the microcontroller for tertiary control (PWM fans, voltage and such) with minimal trouble, and power and topology considerations for a four-chip miner for pod sector. As much as it would be fun to build a board to fit into one (or more) of the popular pods (RK Box, U3, Gridseed 5-chip) I honestly lean toward just building a thing that'll attach to a generic CPU cooler and call it good. Why try to work within a set of custom-made geometries for someone else's product when you can work with a widely-distributed standard for off-the-shelf parts instead? As much as it'd be nice to reuse existing pod heatsinks, I think the best option for flexibility and reuse is to build around mounting a basic CPU cooler. Seriously, with a top-end dissipation of maybe 50 watts, even a crappy low-profile i3 heatsink would probably do the trick.

I'll probably focus on that board in the short term, and use some of our BM1384 one- and two-chip boards for testing the microcontroller integration. All of the digitals would transfer directly from the 4-chip pod to a 30-chip board; I've already got a good handle on the power systems and layout for the 30-chip board so if we can ever get some BM1385 samples to play with (I'm kinda leaning on PlanetCrypto to pull that off), probably after the S7 is in the wild, it shouldn't take long to accomplish something.

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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August 25, 2015, 07:23:40 PM
 #1659

So the S1 extras would be the blades and the controller?  IE the new upgrade is pretty much just using the chassis, fan and heatsink, with boards and controller being included in the upgrade? Or is the "upgrade controller" up to the end user?

Regarding the S1 blades, are you saying those are USB tethered, and can be run from a hub via CGminer?  I have been working through the thread were they were trying to run the S1 from an Rpi and it seemed non trivial from what ive read so far.  Is that inaccurate? Is it really just a usb connection and a matter of compiling CGminer correctly? 
Mudbankkeith
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August 25, 2015, 07:27:38 PM
 #1660


Over sandwiches today (it is Tuesday after all) Novak and I talked over how to properly integrate the microcontroller for tertiary control (PWM fans, voltage and such) with minimal trouble, and power and topology considerations for a four-chip miner for pod sector. As much as it would be fun to build a board to fit into one (or more) of the popular pods (RK Box, U3, Gridseed 5-chip) I honestly lean toward just building a thing that'll attach to a generic CPU cooler and call it good. Why try to work within a set of custom-made geometries for someone else's product when you can work with a widely-distributed standard for off-the-shelf parts instead? As much as it'd be nice to reuse existing pod heatsinks, I think the best option for flexibility and reuse is to build around mounting a basic CPU cooler. Seriously, with a top-end dissipation of maybe 50 watts, even a crappy low-profile i3 heatsink would probably do the trick.

I'll probably focus on that board in the short term, and use some of our BM1384 one- and two-chip boards for testing the microcontroller integration. All of the digitals would transfer directly from the 4-chip pod to a 30-chip board; I've already got a good handle on the power systems and layout for the 30-chip board so if we can ever get some BM1385 samples to play with (I'm kinda leaning on PlanetCrypto to pull that off), probably after the S7 is in the wild, it shouldn't take long to accomplish something.

On reading this, I'm glad the 12 Chili miners with those Massive Evo 212 coolers are still living in the shed. They oh so nearly went onto Fleabay at a fiver each.

BTc donations welcome:-  13c2KuzWCaWFTXF171Zn1HrKhMYARPKv97
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