@bobsag3,

Many thanks for letting BA customers on board the GB bus, in effect for free.

I'll be buying some gear from MinerSource in the future for sure!

OK, thanks guys, I'm impressed with your board design skills Marto

I have ordered 2 * Technobit TPLinks to run 12 * HEX4M boards.

I will be tying all of my 12 boards ground planes to a common short lead earthing system (I will be scoping the boards out first to make sure they have a 0V groundplane, I'm pretty sure they do).

The 1:6 USB buses, is it necessary (recommended) to have them powered by one of the ATX PSUs that is powering a board, to prevent ground loop issues? edit: It's probably a good idea, I will be doing this.

About HEX4M, from TECHNOBIT website:


Does this mean that [2 * cgminer TPLINKs] will be able to run  [12 * HEX4M boards] without needing any USB hubs?

If it's possible then what is the cable type needed for the 10 * inter-board connections.

Looking at the board photographs I'm guessing it's all USB-MINI-B

Best long term strategy is to diversify between PMs and bitcoin.

Many posts have mentioned these points already, but I love silver and so wrote my feelings on the matter:

Silver is undervalued

I think silver is undervalued at the moment.

SILVER:
Price per Oz of metal: $ 22
Total refined metal on planet: 45 BILLION Oz
Total market cap: $ 990 BILION

GOLD:
Price per Oz of metal: $ 1300
Total refined metal on planet: 4.5 BILLION Oz
Total market cap: $5850 BILLION

Why is it undervalued?

Reason being is because gold is currently mainly used for long term wealth storage. Whales deal in gold, the physical size of silver makes it more expensive to store when dealing in Billions of dollars worth.

Silver market currently has more industrial weighting.

Should the shit hit the fan then PMs will probably be used instead of cash, in that case silver price will increase (relative to gold) due to it's more useful and safer smaller denomination.

Silver is more fungible (easier to arrange a transaction with) than gold:

X = Paranoia level of person receiving 1Oz gold in a trade and giving considerable silver change.
Y = Paranoia level of person receiving 1Oz silver in a trade and giving smaller silver as change.

X > Y

What does this mean for the future of Silver?

Given its higher fungibility, we would probably see the gold/silver price change like:

(now) --> gold/silver = 0.017 ~= 2%
(shit hits fan) --> gold/silver ~= 0.1 ~= 10%

If a large gold holder converted all their holdings to all silver just before the shit hits the fan then they would be sitting pretty. And soon be holding much more gold after operating as a silver/gold changer. The initial flurry of changing would yield the highest % profit per week for their entire life.

It would be a Ferengi's wet dream.

What if the shit never hits the fan?

There is shit in the air, it's not hit the fan yet, but many can smell it.

The Silver price will still probably rise as more minnows realise the hedging benefits of PMs.

In short the impetus that drives you to buy some silver rounds will also be driving others.

Oh and you will be holding a beautiful coin.

kids ... yeah box it!

The extra fans to force cool the whole box sounds like a good idea.

Thanks, OK I will probably use some. But to dissipate 100W and keep the die "cool" takes a lot of cooler.

I may have to underclock on hot days , but can probably run 400 GH/s per board in the winter maybe, cheap electric heater even if it's not turning profit

I don't think it could shift 100W, you may have to run underclocked with that cooler.

Boxing it up would be required in a busy lived in environment, especially with cats/kids etc.

But it's better to leave it as open board in a safe unlived in area. Especially because TechnoBit board has a giant aluminium heatsink on its base, you want good clean airflow around that.

I have a small spare room with a window and I'm going to rack the 12 boards up on shelf rails, the shelfs wont be like book shelves, they will not have a solid board base, they will be pairs of horizontal rails onto which the boards are fastened for better air circulation.

Hey guys,

What do you think of this cooler, will it be able to shift enough heat?

Notice it only has 2 heat pipes:

CLICK FOR IMAGE

@marto74, thanks for providing this service!

@all:

Well this is a good result for us and I think it's our best chance to make good with our BA orders.

I have a question:

To get 12 boards hashing could one use a single controller with a USB hub

Or put another way: whats the cheapest way to get them all speaking to controller/s  

@bobsag3, Things are moving along nicely! Thanks for providing this service

I realise you are mad busy organising the group buy at the moment, so I'll just mention it here...

I would like to push my spare 4 chips onto @y_boonstra.

Is this possible and how/when should I do this?

Yes, probably around that ballpark figure.

Building up and configuring full tested plug-n-play miners with instructions may yield +ve ROI.

Well I'm in, just sent PM to bobsag3 and got confirmation.

@y_boonstra

I will sell my 4 spares for 0.2 BTC ~= $120 at todays price.

Escrow deal.

You could maybe:

Start an auction thread for your 100 * minion chips, use escrow.

We have until thrusday to join this group buy.

I'm also in europe so this kills import from china fees for me also (which is nice!)

I'm guessing that 12 or 13 populated boards would be only a modestly sized squarish parcel, could get 2 day international shipping for a reasonable price.

Jeez though, 6KW of power needed, would push my house to the edge. sure would be a warm winter though, provided miners still pay electric bill by then.

Are you asking:

Is minersource willing to buy our minion chips off us ( at a cheaper price than BlackArrow sells them for ) ?

I would also like to know this.

Without further investment you could only receive the populated boards for which you would have to pay shipping.

So pessimistically lets say those four extra chips pay for fast shipping, you would get:

12 * populated Technobit HEX4M boards == 12 * 0.4 == 4.8 TH  (overclock to ~5.7 TH)

These you could sell as almost ready to go miners.

Or you could buy PSUs and coolers and mine with them or sell them on as complete miners.

The question is how much could these completed (or just populated board) miners be sold for, in say six weeks?

So with 100 chips (x3 comp):

48 chips for minersource

48 chips for me

minersource take my 48 chips and populate them onto:

12 x Technobit HEX4M boards.

The 4 remaining chips I could pay minersource EUR_205 to give me a total of:

13 x populated Technobit HEX4M boards == 13 * 0.4 == 5.2 TH

with scope to overclock to ~6.2 TH

EDIT: yes it seems this is the deal after reading other thread, I will probably be PMing bobsaq.

Hello fellow Bitcoin Traders.

I am hard at work developing Cortex7, a trading client for Bitcoin.

https://www.cortex7.net

It works with various exchanges and has a native code signed installer for many Operating Systems.

The interface is being designed to work well with desktop using mouse/keys, touchscreen tablets and even TV boxes (using joypad).



The idea is to have an app that can run 24/7 and just be used for trading, to give you some perspective: for testing I am using a cheap 7" Android tablet in a wall holster that is on 24/7 like a nice clock/trade station, it is constantly trickle charging, it gives alerts and notifications and can talk the realtime price out etc.



The initial public release will be in some months. I am starting this thread while still in development mode to let you experienced Bitcoiners see it first, any questions, feedback or suggestions are welcomed in this thread.

P.S. Thank you bitcointalk forum, for allowing users like me to post service support threads on this great forum.