Topic: NanoFury Project - Open Source Design - page 2. (Read 75392 times)

vs3, quick question: why do the bitfurys in the nf6 design not run at their top frequency (6x3.5 = 21GH vs ~12.5GH)?

NanoFury NF6 DIY kits update - I have 4 panels left, which can be yours at $80 per panel.

hey guys, I have a few Bitfury rev2's for sale, pm me if interested

ps. I'm also open to trades

As a few people asked "Where do we get the bitfury chips from" - here is one good option if you're in the US:

Update regarding the DIY kits - I had several people asking for the schematic and design files as well. Those are available to the manufacturers at this time (and please get in touch with me if you'd like to become one)

However, as the previous DIY kits were also used as a proof-of-concept/capabilities for future manufacturers I'll add those to the 5+panels deal. And since I have just over 5 panels - there will be one such person.
So - if you order 5 or more panels I'll throw in also the schematic and all design files.

Aside from that they will be going to github in a few months (which was by request of the few manufacturers who have sponsored the development so far).

I have a few extra boards for NanoFury NF6 DIY kits
They're 8 boards per panel.

Pricing will be as follows:
----------------------------
8-board panel: $150
Components pack (all components for 8 boards excluding bitfury chip) : $100
----------------------------
Discount 1: 10% off when ordering 3 or more panels
Discount 2: if you order 5 or more panels - I'll apply a 20% discount and include one of my working NF6 prototypes as a reference
----------------------------
Ground shipping within the US will be free. PM me for international.

Note 1: heatsink and thermal tape are not included in the components.
Note 2: I didn't order extra stencils this time but will provide the solder mask gerber so that you can order (a cheap) one yourself. Detailed assembly instructions are included with the panels as well.

TO PLACE AN ORDER:
PM me with what you want and I'll send you a quote with the final amount and payment instructions.
Please put DIY KIT in the message subject line.
For the quote I'll need a shipping address, and if you prefer UPS/FEDEX also a phone number.
Payment options (in the order of preference) will include: BTC (coinbase rate), check, paypal.


Boards on the panel have been specifically laid out for an easy automated SMT machine assembly.

Here are some images:


here is how the solder mask looks like:

That's for the 6-chip device, or at 15GH that's roughly 2.5GH per chip.

(and I already discussed that with pinkfloyd11 over PM so this clarification is just for the rest of the folks)

Hi VS3
How you obtain 12GH from every device???

I notice that error rate start very high and after slowly go down.

Is soft startup of Vcore a way to improve it?
Thanks

A lot of good suggestions! Thanks Steve!

Thought I'd respond to this here -

The NanoFury 6 is almost plug-and-play - you still need to download the software and set it up right.  Purely as a thought:

The way big miners solve this is typically by including a Raspberry Pi that acts as both the host to the miner as well as presenting an interface to the miner to a terminal user, often over a network connection.  That's well outside feasibility for smaller miners.

What smaller miners could do is present themselves as an external drive when first plugged in, with the required files and a setup tool included (optionally with a suggested autoplay that still gets presented to most users), and switch to the actual mining device when setup has concluded; alternatively, present itself as both devices at the same time.

If done, it would truly become 'plug and play'.  The reason why it's just a thought: the storage required - it tends to exceed the available space on most microcontrollers, and external storage is relatively expensive in both price and board real estate.  So for a fairly small bit of convenience (people who use these do tend to be fairly tech-savvy), it adds quite a bit of a burden on the design and price.  Distributors would be better off providing top notch service by having a web page dedicated to setting it up and/or including the necessary files and documentation on media included with any shipment.

Nice!

For those who don't want to DIY, or can't source the required chips, a small batch of NF6's are up on moonlightminer.com (user Swimmer63) and at e-bay (ebay seller btc_valet, user BitcoinValet).

A quick update on the NanoFury NF6 devices:

bfgminer version 4.0.0 - Started: [2014-06-18 20:15:32] - [  1 day  08:14:55]
 Manage devices Pool management Settings Display options
 Pool 3: ...ning.eligius.st  Diff:128  +Strtm  LU:[04:30:33]  User:
 Block: ...19a29e85 #306808  Diff:13.5G (96.37P)  Started: [04:24:29]
 ST:26  F:3  NB:222  AS:0  BW:[228/ 17 B/s]  E:105.98  I:85.31uBTC/hr  BS:6.28M
 4/24         | 57.37/57.16/55.13Gh/s | A:11905 R:73+16(.76%) HW:42531/2.8%
-------------------------------------------------------------------------------
 NFY 0:       | 16.24/16.21/15.47Gh/s | A: 3387 R:14+ 5(.57%) HW:14697/3.4%
 NFY 1:       | 12.52/12.49/12.16Gh/s | A: 2657 R:20+ 5(.96%) HW: 6294/1.9%
 NFY 2:       | 12.52/12.50/12.17Gh/s | A: 2654 R:25+ 1(1.0%) HW: 6285/1.9%
 NFY 3:       | 15.98/15.97/15.34Gh/s | A: 3207 R:14+ 5(.60%) HW:15260/3.5%
-------------------------------------------------------------------------------

with 2 of them on a good hub (Amazon Basics with 4A power brick providing solid 5.0V) and 2 on a crappy hub (very similar design, 2.5A crappy power brick providing 4.4V under load). Power usage - 1.2-1.4A.

I also have a few extra boards left. DYI kits are going to be coming soon!

Yeah - those chips can tolerate some heat, but they really love it when the temperature is in the 60-70C range

just wanted to show off my latest mod:




pushed a nanofury v0.7 with a Rev.2 chip to 3.5Ghash/sec

V_core is 0.918V~0.92V; some active cooling but notice the error rate!!! only 1.5%


that works out to: 0.92V * 3.0A = 2.76 W

2.76W/3.5Ghash = 0.7886W/Ghash; and this is only a mild overclock. i can go up to ~1.05V, just need more cooling

Pretty nice indeed! That's roughly 0.45W/GH!

Nice

1volt x 0.8 ampere
[email protected]/sec

Now is 0.8volt x 0.77 ampere
[email protected]

mW

Or

mA

?

430mW at GHash seem good value.
What do you think?

Now if the 2 worked together imagine what would result

Oh the ASIC pron