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1  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ZEC] ZCASH - All coins are created equal. Discussion Thread (Unofficial) on: December 06, 2019, 09:16:42 PM
Selling my Zcash miner on Ebay.
Thanks.

https://www.ebay.com/itm/193238874762
2  Economy / Service Announcements / Re: [ANN] bitaddress.org Safe JavaScript Bitcoin address/private key on: September 06, 2018, 04:16:49 AM
Anyone working on adding Segwit?
I could code if it if no one minds.

3  Bitcoin / Project Development / [ANN] Bitimax (BTX): Maximizing Peaceful Consensus. on: March 25, 2017, 04:24:30 AM
Hi All,
      Starting a new project. Need lots of help. The initial bare bones plan is below.

I need of Web designer, graphic designer, web developer, etc.
and lot of bloggers that are tired of all the contention.

Thanks for your time

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Name: Bitimax (BTX)

Slogan: Maximizing peaceful consensus among individuals

Website: Bitimax.org (Secured domain, no website yet)

About
Bitimax is an organization that builds and hosts communication tools for faster consensus discovery from a pool of competing ideas for desirable protocol change. Bitimax empowers anyone and everyone to express and promote their concepts. Once sufficient consensus is achieved, the technical community can go to work with higher probabilities of success. This organization is all about uniting individuals on commonality and diminishing the focus on group differences.

Q & A
Does the Bitimax organization innovate and/or maintain Bitcoin/Blockchain technology?
No. we innovate communication tools that allow anyone to express their well-formulated ideas for potential consensus victory; however, we plan to work closely with the technical community to help concept authors be advised on the complexity and feasibility of their endeavor.

Is this a potential answer to the poison generated within the Bitcoin community?
We hope so. To our cherished community, this is for you
https://www.youtube.com/watch?v=_i1vMK4XaPk

Can this service speed up development of the Bitcoin protocol?
Absolutely! Engineering a viable and trustworthy solution to a Bitcoin improvement proposal takes considerable engineering time, peer review, and a lot of testing. To go through such a painstaking process without consensus is disheartening and a waste of time, money, and resources. Hopefully, with this service, consensus-worthy ideas will quickly be found, prioritized, and handed off to the technical teams.

How does it work?
We utilize well studied methods for brainstorming and collaboration among large groups: Multi-Voting, (Nominal Group Technique) NGT Voting, Nominal Prioritization, & Affinity Grouping/Diagramming.
These techniques are far superior to straight voting because it allows an idea that is favored by all, but not the top choice of any, to gain wide-spread consensus. These methods provide more unique ideas, more balanced participation from everyone, increased feelings of accomplishment, and greater satisfaction with idea quality and group efficiency. These methods help prioritize issues and they help save time by focusing only on ideas with the greatest potential.

Who votes?
Individual node operators, Bitcoin services & businesses, Bitcoin hodlers, services & businesses that accept Bitcoin, and Miners. As great as Bitcoin technology may be, without all these participants, it would have little to no value.

What is the process of submitting an idea?
Work in progress.
4  Bitcoin / Hardware / Re: where can i buy bitfury or avalon latest released chipset? on: December 15, 2016, 04:28:10 PM
I'm looking for help for our current miner we are working on.

You may be interested in our approach and progress.

PM me for details if interested.

5  Bitcoin / Hardware / 14nM/16nM Chip Specifications on: October 31, 2016, 08:33:40 PM
Looking for Chip 14/16nM Specifications.

I understand their are some 3rd party projects going on with BW and Bitfurry chips.
We are NOT looking for chips.....YET, but the information would help solidify our miner design.

Anyone that is in a position and willing to help in this regards would be greatly appreciated.

If you want more Bitcoin Hardware variety, please bump and keep this thread active. Thanks!
6  Bitcoin / Hardware / Re: Looking for Broken S9 Hash Board and Controller... Thanks! on: August 23, 2016, 09:17:53 PM
Update: Thanks to HolyScott at HolyBitcoin.com, I now have a Avalon 6 and Bitmain S7.

I'm still looking for a Broken S9 Hashboard and S9 Controller... Thanks!

Thanks Dogie for the offer on the S7 Controller. Looks like I'm good now.
7  Bitcoin / Hardware / Re: Universal Hash Board: Bitmain 1384 "UHB_BM1384" on: August 22, 2016, 11:19:11 PM
Final changes have been made to this board and the links in OP have been updated.
Hopefully it will be of use for anyone looking to do anything with S5 Bitmain miners.
There was a wealth of information learned about bitcoin mining hardware while working on this.

Avalon 6 is next!

Thanks for checking it out! Cool
8  Bitcoin / Hardware / Re: Looking for Broken Avalon 6, S7, and S9 on: August 10, 2016, 09:05:23 PM
Seeing as you're hardware savy you can probably unbrick my S7 controller https://bitcointalk.org/index.php?topic=1513955.0

I may take you up on this. Give me a few more days to see what I can find.
What is shipping look like from the UK to the US?

Thanks.
9  Bitcoin / Hardware / Looking for Broken S9 Hash Board and Controller... Thanks! on: August 08, 2016, 06:19:35 PM
Looking for some broken hardware to build UHB boards similar to the following:

Universal Hash Board: Bitfury 28 nM "UHB_BF28NM"
https://bitcointalk.org/index.php?topic=1542603.0


Universal Hash Board: Bitmain 1384 "UHB_BM1384"
https://bitcointalk.org/index.php?topic=1573153.0

Thanks!


Update: Thanks to HolyScott at HolyBitcoin.com, I now have a Avalon 6 and Bitmain S7.

I'm still looking for a Broken S9 Hashboard and S9 Controller... Thanks!
10  Economy / Computer hardware / Re: [WTB] BROKEN Avalon 6, Bitmain S7, Bitmain S9 on: August 03, 2016, 06:56:48 PM
You needing miners or chips? Because I have some A3218 and BM1385 pull chips (untested) that I'm probably never gonna do anything with.

Thanks Sidehack. I appreciate the offer.. it means a lot.
I'm looking for the miners (hash board and controller) to reverse engineer for learning purposes.

Thanks again!
11  Economy / Computer hardware / [WTB] BROKEN Avalon 6, Bitmain S7, Bitmain S9 on: August 02, 2016, 06:30:50 PM
[WTB] BROKEN Avalon 6, Bitmain S7, Bitmain S9

looking for one of each.

Need them for this project:
https://bitcointalk.org/index.php?topic=1542603.0

Thanks.
12  Bitcoin / Hardware / Universal Hash Board: Bitmain 1384 "UHB_BM1384" on: August 02, 2016, 06:18:14 PM


The "Universal Hash Board Standard" first introduced here:
https://bitcointalk.org/index.php?topic=1542603.0
Is now being applied to Bitmain's BM1384 for learning purposes.
It is our goal to apply this preliminary standard to as much hardware
as possible to make sure it can accommodate all possible
small ASIC string designs.


Universal Hash Board: Bitmain 1384 "UHB_BM1384"
        BOM_UHB_BM1384_0.1.pdf
        https://goo.gl/fvqkN7

        PCB_Bottom_UHB_BM1384_0.1.pdf
        https://goo.gl/7TuuLS

        PCB_Top_UHB_BM1384_0.1.pdf
        https://goo.gl/W36sxC

        Schematic_UHB_BM1384_0.1.pdf
        https://goo.gl/i8uAAX

Edit: The PCB layout needs rework after a few changes to the dimensions of the PCB and some small changes to the schematic.
          Files will be updated as soon as its complete. Done! Links updated as of 08/22/16

Looking for help. Anyone have some dead hardware they can donate to this cause? Looking for dead hash boards and controllers for
AVALON 6, S7 and S9.

Thanks for all the positive criticism.

Small preview of the electrical Spec's:
13  Bitcoin / Hardware / Re: Universal Hash Board: Bitfury 28 nM "UHB_BM28NM" on: August 01, 2016, 08:29:21 PM
Please Help. We need some more hardware to reverse engineer and make sure this standard is truly universal.

Looking for broken S7 and S9 Hash boards and controllers.
Looking for a broken Avalon 6 hash board and controller.

If you have any sitting around collecting dust, please donate soon!

THANKS!!


14  Bitcoin / Hardware / Re: Universal Hash Board: Bitfury 28 nM "UHB_BM28NM" on: August 01, 2016, 08:25:36 PM
I've heard the easily replaceable hash board before (including from Bitmain) and it never quite works out the way you think it will. Have a look between the generations and try and work out how many Bitmain generations are a. board compatible and b. heatsink compatible and that'll give you an answer as to the sustainability.

Yes. This has by far been the most challenging aspect of the design.
Varying sizes of chips and thickness.
Surrounding components.
Heat dissipation through the top of the chip or through the PCB.
Different PCB layout where chips are now in new locations.

It's no surprise where Bitmain is now: Individual Heat sinks for each ASIC.

Our solution may not be elegant, but should work.

Not ready to go into detail yet and the topic deserves its own thread.
15  Bitcoin / Hardware / Re: Universal Hash Board: Bitfury 28 nM "UHB_BM28NM" on: August 01, 2016, 07:13:43 PM
Very cool...but a little late...no chips will be sold to anyone by any manufacturer to make a miner for the general public Sad

I totally understand the pessimism. I've been watching Bitcoin since the GPU days and all the drama that has unfolded.
IMO, if it doesn't change (ASIC companies not selling their chips) then they are going to be "holding the bag" and it won't be worth much.
If they don't embrace us "little guys" sooner rather than later then I truly believe POW blockchains utilizing ASICs are doomed.

We've chosen to be optimistic. We've chosen to work hard and share our efforts as much as possible with a bright hope of ASIC manufactures
embracing us and working closely with us.
We desire to become a 3rd party hardware manufacture that will also empower this community and give it a voice that cannot be ignored.

16  Bitcoin / Hardware / Re: Universal Hash Board: Bitfury 28 nM "UHB_BM28NM" on: August 01, 2016, 06:56:55 PM
The schematics look like art project, not a technical project. It seems like the preparer wasn't understanding what he was doing or for other reasons made strange mistakes. E.g. there is an n-channel device Q5 with gate tied directly to +3.3V.

I've seen electronic schematics prepared around 1960-1970 by a school dropout who was dictated by an engineer who was injured and blinded in an accident. They had similar completely incomprehensible mistakes. E.g. no sane technician or engineer would consistently spell "nM" for "nanometer".

It could also be a joke, because "Bitfury" is consistently spelled "Bitfurry".


Glad you like the "art". I've corrected the spelling on our internal files for the next revision. Thanks.

The n-channel device Q5 is a unidirectional High-to-Low Level translator. The High signal is on the left.
Took me a while to grasp how it works. Admittedly, I've never used it in practice; It was referenced from
Bitfury's design files that they publicly shared.
17  Bitcoin / Hardware / Re: Universal Hash Board: Bitfury 28 nM "UHB_BM28NM" on: August 01, 2016, 06:42:26 PM
4 fans for only a single hashing board? catch up to the times

someting like this needs to be capable of >2KW and be easy to swap boards in. Look at the antminer S2 or the first-gen bitfury 56nm as an example of what it should look like (and then realize that desipte that, both companies never released compatible upgrade modules)


The max Wattage in this standard is at 500 Watts.
The wattage range is much more reasonable for new home users; people who want to investigate the technology.
We still believe that bitcoin mining is the #1 way to introduce this technology to the masses. This is our motivation.

The four fan design as seen in the OP teaser photo offers the ability to cool while being very quiet.
Again, catered towards a reasonable home mining experience for newbies. The design is a large step
from the obsolesce seen so far. All the surrounding infrastructure will survive several future generations.
18  Bitcoin / Hardware / Re: Universal Hash Board: Bitfury 28 nM "UHB_BM28NM" on: August 01, 2016, 06:26:26 PM
I haven't looked over schematics (not downloading on this browser, I'll check it at the shop), but on that breakout image I don't see any provision for regulation; couple that with the need to be "stringable" and I assume the design is fixed core voltage? In which case the designer needs to be reminded that home users don't really appreciate planned obsolescence, therefore "no thank you".


There is no regulator on the UHB boards in the standard that is being created. The regulator is moved to the Control Board.
There is no "planned obsolescence", but just the opposite. Thanks for taking a look.
19  Bitcoin / Hardware / Universal Hash Board: Bitfury 28 nM "UHB_BF28NM" on: July 08, 2016, 04:42:48 AM


We've been working vigorously for the last several months to produce a workable Bitcoin mining "standard"
that would prevent the need to "re-invent the wheel" every time a new Bitcoin mining ASIC is released.
This would make all aspects of mining hardware reusable on future generations (except the “Hash Board”);
It would also be re-usable on ASICs from other vendors. The only requirement is that the chips are small
and “string capable”.

As we continue to work to finalize the "preliminary" release of this standard called the “Universal Hash Board”
standard, we have begun to apply its current outline and guidance to existing ASICs in an attempt to learn as
much as possible. The files presented below apply to Bitfury's 28 nM chip set.

BOM_UHB_BF28NM_Draft#1.pdf
https://goo.gl/rOatL2

PCB_Bottom_UHB_BF28NM_Draft#1.pdf
https://goo.gl/kX2Gh9

PCB_Top_UHB_BF28NM_Draft#1.pdf
https://goo.gl/Wk0xNC

Schematic_1_UHB_BF28NM_Draft#1.pdf
https://goo.gl/FflNBk

Schematic_2_UHB_BF28NM_Draft#1.pdf
https://goo.gl/9LLX7w

Note: This design was done for learning purposes only. Nothing is guaranteed! All our work is presented for
potential benefit and inspiration to the Bitcoin community. We also desire to operate a 3rd party Bitcoin
Mining company as transparent as possible. Thank you.

FYI, I frequent these forums for causal moments of entertainment, but rarely sit down to write posts. Hope
you all understand. Please email me for anything you feel is important or critical. Please speculate among
yourselves on all the details and future of this endeavor. More will be released as soon as possible, but
remember, development is a slow painful birthing process.

~~~~~~A few other tidbits ~~~~~~~~~~
1) In a few weeks, we will publish a similar topic for Bitmain's BM1384 (aka Antminer S5).

2) We are looking for broken hardware to be donated for this cause. If you have one of the following to
spare, please email me and then send it our way!
   Antminer S7
   Avalon 6
   Antminer S9

3) Interested in joining?
   Looking for PCB Designer.
   Looking for 8bit Microchip PIC programmer.
   
       Please email me with your qualifications (or resume).

Note: Our operations currently run with little to no funding. All work is voluntary and comes without
promise or pay; however, active involvement may situate you in a position for hire with pay as we steadily
lift things off the ground over the next several months.
20  Economy / Collectibles / Selling Coin Collection on Ebay - 3% Discount in Bitcoin on: April 20, 2016, 12:37:15 AM
No Reserve. Low Starting Price.

http://www.ebay.com/usr/mida813

Thanks!
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