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Author Topic: GekkoScience is now dabbling with 16nm ASICs for new designs  (Read 28026 times)
ppetrovic68
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January 05, 2017, 10:24:13 PM
 #541

If everything works as expected, yes that's the plan. The actual interface on Compac, 2Pac and Biggie are pretty much the same so VH's cgminer should be forward-compatible with the Biggie as well, though there may be some tweaks once the Biggie is actually rolled out.

Hi there,

any idea if it'll be possible to set different frequencies for Compacs and 2Pacs (and later Biggies) running on the same instance of the VH's cgminer?
As long as each stick is reported as a separate device I'd guess yes.

Hm, judging by the pic sidehack posted earlier 2Pacs will be identified as GSC, compared to COMPAC, so they will be reported as a separated device, however... if VH's cgminer would still be using --compac-freq parameter to set the frequency then we'll be stuck with the same frequency for both 2Pacs and Compacs on the same instance of cgminer, right?

I might be missing something, but asfaik there is no way to set frequency per device (e.g. running, off of one cgminer, 2 compacs, first one 200Mhz and second one 250Mhz) - can somebody correctly if I'm wrong?

If I'm not wrong, new parameter will be needed (--2pac-freq?) to set different frequency for 2Pacs
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sidehack
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January 05, 2017, 10:31:09 PM
 #542

It might have only been mentioned in the sales thread, but vh's cgminer driver will differentiate between Compac, 2Pac and Biggie miners. I have requested, and have been told it's easy to implement, having a unique frequency flag for each miner type.

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January 05, 2017, 11:10:53 PM
 #543

It might have only been mentioned in the sales thread, but vh's cgminer driver will differentiate between Compac, 2Pac and Biggie miners. I have requested, and have been told it's easy to implement, having a unique frequency flag for each miner type.

Great, thanks! I guess I've missed that in the sales thread.
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January 06, 2017, 01:00:59 AM
 #544

Oh yeah, Biggie layout is about 95% finished. I've got ground plane stuff and temp sensor stuff to iron out, and then give it a good once-over to check all connections but I should be on schedule to order prototype PCBs next week.

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January 06, 2017, 01:45:13 AM
 #545

Oh yeah, Biggie layout is about 95% finished. I've got ground plane stuff and temp sensor stuff to iron out, and then give it a good once-over to check all connections but I should be on schedule to order prototype PCBs next week.

You're a machine mate! Looking forward to picking up a few Smiley

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January 06, 2017, 06:43:44 PM
 #546

Biggie pod layout is done, pending a final checkover. I need to do that and work up bitshopper's custom silkscreen for the sticks bound for Europe and I'll be ready to place an order including Biggie prototypes.

The first box of parts just arrived, which includes almost all the passives and some of the active components I'll need to build the 2Pacs, including parts I need to work up the rest of the prototypes. Got some PSU board work to do in the short term, but I'll set up the robot to run out 2Pacs early next week and get review units out to people ASAP.

I also went ahead and followed up on that US heatsink supplier link, thanks Meech. I had come across that outfit when I was doing some looking last month, but that was right before I handed off the task to my procurement agent friend. I've submitted an RFQ for their 1" profile, with and without tapped holes.

I also did a bit more research on anodizing, and since I have about ten feet of heatsink-profile bar stock on hand to play with, I might dabble a bit next week depending what chemicals I can find locally.

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January 06, 2017, 08:04:31 PM
 #547

Great work Sidehack!

Thank you for the updates.
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January 06, 2017, 08:37:49 PM
 #548

Anodizing is - interesting. I played around with it long long ago.

Basic clear and black is easy to do and very straight forward. Colors is where the Majik comes into play... Most often pure DC is not used but rather pulsed DC is be it 120Hz unfiltered from a full-wave circuit or filtered DC chopped to a higher freq. Even the pulsed current ramp up/down times come into play.

You might want to check out what folks at http://www.instructables.com/ have done. Odds are they have DIY info on it.

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January 06, 2017, 08:46:28 PM
 #549

DIY is what I've looked into, since anything would be starting from scratch. Seeing decent results from straight DC so I'd probably start there, nothing fancy.

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January 06, 2017, 11:51:24 PM
 #550

Thought I had found some links to more detailed specifics on anodizing a while back but this is a good place to start. http://www.anodizing.org/?page=reference_guide and http://www.anodizing.org/?page=faqs

Towards the end of that 1st page they give the colors produced using different aluminum alloys along with current densities/time.

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January 06, 2017, 11:54:14 PM
 #551

Great work sidehack!

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January 07, 2017, 12:17:53 AM
 #552

Thought I had found some links to more detailed specifics on anodizing a while back but this is a good place to start. http://www.anodizing.org/?page=reference_guide and http://www.anodizing.org/?page=faqs

Towards the end of that 1st page they give the colors produced using different aluminum alloys along with current densities/time.

Yeah, basic anodizing small parts doesn't take much at all as far as supplies, and coming up with a regulated power supply to do it is right up your alley sidehack.

The hardest part for most is the calculating of the part surface area for the volt/amp calculation.    Might be something to consider for in-house... if you want to... just a small tank (tupperware bin or old porcelain sink) that you can dunk the parts in a conductive basket.

Lots of youtube vids with home anodizers showing their stuff =)

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January 07, 2017, 03:36:21 AM
 #553

I also did a bit more research on anodizing, and since I have about ten feet of heatsink-profile bar stock on hand to play with, I might dabble a bit next week depending what chemicals I can find locally.

I found https://www.amazon.com/dp/B01HSBM5JM/
Quite similar to Compac heatsink dimension (10mm longer. But fin counts, height, and width are the same) and it is already anno'ed.

Each heatsink is basically $1.99.
Something I just wanted to mention, so you can save some trouble.
If this is not cost effective at all, then you can disregard this.
Just my 2 cents.
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January 07, 2017, 04:03:51 AM
 #554

Thanks, but...

I'd have to cut them down to length anyway, and drill and tap. If I'm going to do that anyway I'll just get bar stock at 20 cents an inch.

Also there's only a couple dozen and I need a hundred dozen.

Thanks though.

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January 07, 2017, 01:07:06 PM
 #555

Dear Sidehack,

Your dedication to this stuff is quite inspiring, so thanks for that)

Could you tell us is there any approximate price for the "Biggie" pod?
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January 07, 2017, 01:49:01 PM
 #556

Dear Sidehack,

Your dedication to this stuff is quite inspiring, so thanks for that)

Could you tell us is there any approximate price for the "Biggie" pod?

It's fairly difficult to determine this before a prototype is finished and functional due to the having to cover both manufacturing/material costs as well as research and development.

It's easy to say the parts cost X and it costs Y to put the miner together and it costs Z to ship it.

Until there is a functional prototype an approximate value can only be calculated as the following:

(X+Y+Z) = A+R&D markup(multiplied by number of devices).

It could be said that the device will cost no less than Z(shipping cost) but that's a useless estimate without the rest of the values.

If I was to guestimate, I think they'll cost more than a loaf of bread...but less than a breadtruck.

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January 10, 2017, 05:21:52 PM
 #557

This is probably the right thread;

Actually, I'm raising money for BF16 projects by whipping out some multi-chip BM1384 stuff since, at low clocks, they're still decently efficient (under 0.3J/GH, so S7-level) and easy to work with. Pods are back in the works anyway, and I'll be sending off for prototype PCBs this week. This isn't the appropriate place to discuss it, but there's updates in my 16nm dev thread and stuff in Group Buys, including a Canada GB, so if you still want to trade those S5 boards for something you should look it up.

I don't want to buy sticks but in 2-3 months when it get warmer again, i'll probably be willing to throw in even my working S5 boards. Otherwise right now, i think i'm up to 3 or 4 non working boards. (out of 9 or 10)

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January 11, 2017, 04:59:18 PM
 #558

re these ^^^ thoughts, EDIT: which are now deleted, so the rest does not make much sense anymore

sticks project is to raise money for BF stuff, this has been articulated plenty.
If you don't want sticks, that's fine.

Would I be too much out of line to suggest that those who buy 2Pac sticks might be considered first in line (so to speak) for boards or any other BF products, otherwise some people are just piggybacking, essentially?
The decision is with sidehack, I just voice my 2c.

On the other hand, if we will have a gazillion of these things (BF), the whole thing is a tempest in a teapot.
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January 11, 2017, 05:41:29 PM
 #559

I really want for there to be a gazillion of them. If the people who have already expressed interest are the only buyers there's still interest for many hundreds, and once they exist and actually get advertised it'll be even more. I don't take high margins from anything, but I was planning on using the profits from BF16 gear to actuall cement my business as more than a barely-breakeven one-man operation in a rented shop, which kinda requires selling a gazillion of them.

Help me build a miner for the home and community! 1BURGERAXHH6Yi6LRybRJK7ybEm5m5HwTr
Currently in development - 20-120GH USB stick; 700GH 75W pod; 4TH 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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January 12, 2017, 06:51:17 PM
 #560

I have old S3's and S1's.. how difficult will it be to implement these boards onto an S3?

Will the S3 controller run the boards?  


I am excited for these pod miners!!  I hope they run with windows XP lol. I fail at mastering raspbin or Linux... I can only windows Sad.
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