Topic: Cairnsmore1 - Quad XC6SLX150 Board - page 111. (Read 286370 times)

https://bit-pay.com/accountingHelp.html

"The maximum payout per day is 1000.00 USD or 1000.00 EUR."

That's not a very workable solution for most merchants. Does anyone know if bit-pay will increase that limit?

How high can you stack these with nylon risers and still have a rigid structure?

Push pull fans will allow a lower stack height and the pillars normally used for the fan could be used as stacker pillars instead. That would get a stacking distance of about 39mm on the current heatsink.

We have not bothered looking at efficiency and thermals as yet. Until the bitstreams are running in all devices there is not much point doing formal measurements. That said early informal observation is showing good results.

The pillars we use are a custom height already and made by a company local to us. We can get pretty much any reasonable height made in a few days subject to a minimum order quantity which I think is about 100 pieces. The curent stacking pillar shown will be available as part of an optional stacking kit which will have the 4 pillars (75mm), an up/down cable and still to be decided maybe a linking power cable.

Although I am sure all of us desperately want to see them accepting Bitcoins, I think it would be best to let them get things ramped up and working and shipping first, before dealing with setting up a Bit-pay account. I'm happy to wait.

Will it be possible to purchase, on the side, those standoffs that you guys are using to stack the boards? I know I could spend a few hours searching for likely options, order them, realize I ordered the wrong thing and order more standoffs, or I could order them with the boards. Happy to hear the progress. Really look forward to seeing these things hash away on cgminer. Screenshots of that will boost confidence for sure.

I wonder if you could do a side-blow option with the boards sandwiched together - one right side up and the other upside-down. That might get them closer together to save space, while not compromising the airflow.

Does that provide sufficient cooling? Or can you not test yet because of the lack of a fully working bitstream?

The simple stacking arrangement with fans in normal place and not to be confused with the side blow push pull fan option.

Yohan does a great job ! To be fair, some competitors work alone or in a very small team. That leaves not much time for frequent updates. I own products of 3 different manufactors and all of them have been very helpful.

Great work keeping everyone so well informed yohan! Enterpoint is really doing an excellent job so far with Cairnsmore1 and showing other FPGA producers how it should be done professionally!

Even if these FPGAs offered less MHash/$£, I'd still buy them from Enterpoint over the competitors products any day, solely on the support you've given the community on the development process so far...

I am damn sure about my position.

I will be laughing in the end, when the gold dries up after the reward drop

He's not actually sure of his position, as evidenced by endless fluctuation on the subject. But fence-sitters never get anywhere anyways.

afraid your GPUs can't keep up anymore ? I remember your words about FPGA junk...

Good to hear an update Yohan on the software and hardware progress.
I've only just started using CGMiner, I've not noticed any performance difference to phoenix 2.0 on my current hardware (which I've used for a while), so it be nice to see a full set of quads working and the results which follow.
Thank you for keeping us updated regularly.

Its good news that you plan to continue developing the bitstream for more performance in the future.

kind regards

That is exactly one our problems starting to use Bitcoin as a payment in a hurry. All of our bills are in USD or GBP so we would have to do that conversion. Then there is the admin on that multiplied by a couple of hundred customers.

Ok there wasn't much progress yesterday as expected although we nearly have our own first FPGA build yesterday. It has a few routes to complete and we might get to that later today. There will be limited progress today for various reasons but after that we will be back on full strength.

Fans, mounting pillars, stacking pillars, and pillar feet have now arrived in large numbers and we will show a picture of a pair of boards stacked, using the optional stacking pillars, hopefully later today. If we can make today's shipping cut-off a handful of boards will leave today to some of you who have requested developer status. If not these will go Monday.

The plan is currently that the main ship will start Monday or Tuesday. The first couple of days it will be relatively small numbers as we bed down the final assembly, testing, boxing and shipping processes. As with most projects this should gain momentum day on day probably for 2-3 weeks before we actually hit output and then things really start to shift.

The answer another question we are currently playing with CGMiner and that recognises the first chip in each of our pairs. The TX/RX issue is stopping the action of the second chip of the pair and we are awaiting our first build to complete so that can cease being an issue.

Proper benchmarks will need the second FPGAs up to be totally meaningful and that is coming but not for few days yet. Our main focus is to have a Cairnsmore1 boards loaded with a basic operational build. Higher performance bitstreams will come later.

Yohan

these are beautiful.. nice work!

I would be proud to have a few of these sitting on my desk hashing away for the world to see.

other fpga manufacturers need to take a look at these and learn a few things instead of trying to sell butt ugly overpriced junk

EDIT: when they are able to start hashing 

Why use bitpay and extra fees when you can convert your BTC to gbp and pay yohan with gbp by yourself manually ? Lazy or love automation !?

It does just needs to be enabled when you compile it.

I know MPBM support Icarus, and I believe CG does as well.