Topic: SkepsiDyne Integrated Node - The Bitcoin Mining Company - page 5. (Read 104236 times)

You can attach up to 127 FPGA boards to a single host PC and that is only a limitation due to USB root hub.  It likely is possible to use more than that if you have 2 USB root hubs but likely isn't worth the effort as the top board is 360MH per board.  127 would net you ~40.5GH/s off any motherboard (and a lot of USB hubs ).

Thats a good question.

You need to keep 2 physical machines to attach the fpga boards too. However I assume you are correct in saying that it doesn't make sense to keep the graphics cards in there. Weirdly FPGA.contract do have GPUS on the go (http://contract.fpgamining.com/?page_id=34).
Oh, and in another rectification, accordding to the wiki (https://en.bitcoin.it/wiki/Mining_hardware_comparison) a real life quad 5850 machines pulls 700 wats but only generates about 1360 MHashes.

Why would you keep any rigs?  If 1 rig is profitable then all the rigs are profitable.  If 13 rigs are unprofitable then 1 rig is unprofitable.

The case for FPGA boards as I understand it:

ATI 5850 can give about 400 MHashes and uses about 200 watts. (ie at best 2MHashes/watt)

Dual FPGA X6500 gives about 200MHashes and uses 20 watts. (ie. at best 10MHashes/watt)

If we were to keep 2 rigs, and sell the other 11 at... $450? each. That'd give us $4950 which buys us 9 Dual FPGA X6500. So we would go from...and I'm really speculating here, assuming quad 5850's on 13 machines...
4x400x13=20800MHashes peak output

To 2rigs+FPGAS giving (4x400x2)+(9x200)=5000MHashes peak output.

In terms of power, I believe Tawsix quoted about 700 Watts per rig. So we would go from 700x13=9100Watts to (2x700)+(9x20)=1580 Watts.

Long story short we would have a drop of about 75% in btc generated. Our efficency per wat would go from 2.3MHashes/watt to 3.2 MHases/watt. Thats almost a 40% increase in efficiency.

My brain is too tired to turn that into dollars. And I may be making a million basic mistakes in my calcs, feel free to correct me. Long story short, I guess we might become profitable again, but the amount of bitcoins we would generate would be tiny. Tiny amount of bitcoins, and weak bitcoin values, means very little return on investment. To me, liquidation still seems a better option.

/discuss

Esteban Prieto

FPGAs demand LESS power, that's what makes them profitable at such low BTC values.

Hardware list. Give it to us.

Whether it works or doesn't, scam or not, this is the type of activity BTC needs... Thanx

@Tiniebras

I'm not posting here for your enjoyment. I am posting here because this is the communication channel Tawsix opted to utilise for communication between himself and shareholders. I am "shouting" and "yelling" because Tawsix is refusing to listen to the shareholders.

Had I been given the information I have repeatedly requested, which I am fully entitled to as a shareholder faced with the question of whether the company I invested in be liquidated, I may well have voted for liquidation. Unfortunately, due to Tawsix's failings, I wasn't given that opportunity. No reason why that information is being withheld has been given by Tawsix.

I just want the figures required to perform an accurate calculation along the lines of what you made in your post below.

That is not unreasonable in the slightest.

Why should Tawsix ignore shareholders ?

Lots of yelling and shouting in this thread which I am not enjoying.

Personally, i'm thankful to Tawsix for having started SIN, and I continue to be confident he has my best interests as an investor at heart. I believe its the vocal minority we are seeing represented in this thread winding each other up.

With regards to Tawsixs question about FPGA boards, I woulde vote for selling off all the rigs+graphics cards bar 3, and then using those three as the redundant heart of an FPGA cluster.

If it makes people happier, I would support you posting a picture of the hardware that we have. But realistically, you'll probably get the same group of angry shouting people telling you that you borrowed / photoshopped the image.

Regardless I would suggest you ignore the shouting people, and go the FPGA route, given that the vote has gone against liquidation.

Regards,

Esteban Prieto

WHAT THE FUCK WOULD WE BE SELLING ?!?

COMPANY ASSET LIST NOW YOU LAZY SOD !!!!!!!

Heat is not a problem, this fpga board uses ~20 Watt and generates 360 Mhash.

In theory it's possible to hook up 127 devices (usb) to a single usb port, so 1 motherboard is enough.

But I think I start my own fpga mining company instead of waisting my time overhere.

He doesn't even know FPGAs use LESS power than gpus.  He's going to charge us another 10 hours at $35/h to adapt the cooling system he probably doesn't even need.

Once again, avoiding the page of requests to list what hardware actually exists.   

Can you say SCAMMER any louder?

Why not sell all of the GPUs and go full into FPGA mining?  We have plenty motherboards for the foreseeable future (at least 4 FPGA boards per motherboard, possibly more, I need to do more research on how one goes about utilizing them.)  The page you linked said that they get at least 200 MHash/sec which implies that they can be pushed to do more (not sure what the expense is besides consuming more power, perhaps greater heat output?)  If heat output is the issue with these cards we should be sitting well, the cooling system we have in place now would not be hard to adapt to the new boards, if it needed to be adapted at all.

I am for 1-3, but I still would prefer to have SIN absorbed. I don't want to have anyone screwed over by the resale.

I just hope that shakaru is still willing to have Shades Minoco absorb SIN.

If I was Tawsix I'd just stop even replying to this thread and take the money and run. He walks away with $10K free and clear!

I guess...running this is not rocket science..
FPGA board, usb cable and mining software, 300 euro you get 200 Mhash/s and I believe ZTEX is making a quad board (800+ Mhash/s) for less then 1000 euro.

No, but I try not to think like everybody else because I would like to get some sort of solution that is comfortable for us -investors- and Tawsix.

243 hours to build an 8 GH/s farm? ROFLMAO. I could build that in a day.

Do you think Tawsix has the technical competency to operate a FPGA cluster ?

Do you think there is sufficient confidence in Tawsix among the current investors in SIN and the wider Bitcoin investment community ?

FPGA boards are an even more risky proposition than the GPU mining rigs, given the high risk that Tawsix won't have the long term commitment necessary to run the boards long enough to achieve any reasonable ROI for investors.

If Tawsix had proven himself capable of delivering on the promises he made during the IPO - commitment, openness, honesty, transparency, frequent communication, consulting shareholders, reliable payment of dividends, strong returns on investments made by shareholders ...

If Tawsix hadn't tried to justify unfair acquisition of shares with bills for items / services he stated would be free ...

I wouldn't think twice about further support and investment in him.

As it stands, I want ...

(1) Secured, shareholder only communication through a suitable medium chosen by Tawsix and notified to shareholders through a "fake motion" on GLBSE
(2) Complete list of all company assets
(3) Copies of purchase receipts for all company assets showing purchase date and price
(4) All company assets liquidated
(5) Copies of sale receipts for all company showing sale date and price
(6) Proceeds distributed to all legitimate shareholders

I don't consider any of that unreasonable. Indeed it is all standard procedure in the winding up of a company.

The longer Tawsix takes to complete these, the longer the assets are sat idle earning the shareholders nothing and the less the shareholders get in resale for their assets.

Chances are I will then invest my share of the proceeds back into a competitor (who I would expect to be moving to FPGA boards in the short/medium term) who has met their promises to shareholders, showing themselves to be professional and competent.

WOW. We just got royally screwed. He did not even have any hardware in the first place !!!

Congratulations, you just are the best scammer on here.

He also said he logged "243 hours working directly on this project, at a rate of $35/hour".

Just because he says something, doesn't make it true.  I think we can all agree on that at this point.

Have you seen anything to otherwise prove he has hardware ?