Topic: [ANN] Sfards:SF100, the first 28nm Dual-Mode Miner is accepting pre-order now - page 40. (Read 129801 times)

or go avalon 4.1 method of high price and hope people buy for a unique feature:

 avalon 4.1 was really quiet
 sfards will dual mine


avalon sold  out all its gear slow but sure.

so if sfards mines at a profit and slowly sells at a high price they will profit.

It will be interesting to see pricing.  But they will be able to charge a premium since there just isn't anyone producing miners.  Hashro Astro looks like a bust unless I have missed any recent news.

No, its up to them to release details (which I also don't know). Sorry for the OT, I just wanted to clear up the "where is the S6" question = you had it, but it was called the S4+.

Any details about what it will look like? Specs?

Any clue as to how much the miner will cost?

yeah i think you are correct about that. 

well maybe the s-7 drops late July.

And maybe my next  two miners are an sfards and an s-7  time will tell.

Can you explain why BTCGuild has fallen below 82% for a 30 day period and Slush has fallen below 90% for a 30 day period?

BTCGuild is actually below 92% for the year and below 82% for the month.  So, ANYTIME I look at bitcoinwisdom calculator to determine potential earnings for the day, week and year; I always deduct at least 8% from the estimate given by bitcoinwisdom to come up with a more conservative estimate of earnings.  EVERYONE should do this.

I switched over to BTCChina, who remains over 93% for the year.  However, they always showed 1 TH/s less than what I actually have.  THEN, I switched over to AntPool.  They actually remain consistent with my actual hash rate AND remain above 92% majority of the time.  Here lately, it has been rare for a pool to be 100% or higher for the month; much less an entire year.

So, in my opinion, one should be careful about assuming a pool will remain 100% or higher for an entire year.  A few pools MIGHT achieve this but not very many.  This means one should always deduct approximately 7% to 8% of their projected earnings for a rig [To be conservative] when determining ROI.  My honest opinion...

S6 was skipped / replaced by S4+, next is S7.

It is not that they don't care.  They are most likely 10x maybe 50x smaller then bitmaintech.

So if they price this gear at a competitive  number. (600 usd shipped to the USA)

Bitmaintech would most likely crush them by bringing out the s-6  or the s-7.

  Just like bitmaintech put a hurt on sp-20 sales by pricing the s-5 at 310 usd.

This  new price war would not really help mining. Last price war ended up driving price of coins under 200 usd and coins have not done a good recovery.

It is far safer to do exactly what sfards is doing.

  But I tell you what send them an email and offer 15k in btc   for 10 machines.  I bet you could get them.

We have to play the waiting game due to one really big seller (bitmaintech)  That is just the way it is.

Anyone using this chip for development thinking of a larger miner?  32 chips or higher per board?  I am very interested.

No thread at the moment, just hijacking this one since it's still under development.

Out of all the variables, that should be the one which remains the most stable.

you have  a thread on this I can follow...or are you just 'kibitzing' here and not ready for such yet?

Maybe I haven't been paying attention, but do you have a price on the chips yet? It would seem they might view the chips as equally precious as the miners.

Hi, the first board is almost finished soldering, just got some trouble with a footprint for the 1.8v converter. On Mouser, it's written sot23-5 (5 pins), and when I received it, it was SOT23 A (3 pins, not the same order, not the same spacing).
I'm waiting for a few samples from the manufacturer in the good package to fit my boards, but I managed to solder the 3 pins one temporarily.

The BGA soldering wasn't as hard as expected, my oven preset temperature was just a little too low for the balls to melt and stick correctly the first time, or maybe my flux is not active enough, but everything seems ok now.
For those willing to do similar BGA soldering, positionning the chips is fairly easy. And with so many balls, self centering will probably allow at least 0.3 or 0.4mm misalignement.

I'll update with some pictures later today.

I hope to have the board finished this weekend and if there were no other mistakes in the design, or only minor ones, I'll have some numbers next week.
Dropbox will be updated today or tomorrow with the correct reference for the 1.8v regulator and 1 ground connection that was missing on another chip (ESD protection on the USB line, so not mandatory anyway, but I used a jumper wire on my board).

I've also been working on something else than the dev board. 2 or 3 users already got some info, I may give some more details in a week or two.
Anyway, no chips available in bulk quantity until late July/early August.

Yes looks like it's they are going to use the same playbook as they did for the gridseed. unfortunate but can't blame them since there will be people willing to give them their money and mine at a loss  

No one. 600-700 USD is our desireable price.

well for scrypt the blades were good gear.  starting price was 3k and they dropped to 500usd pretty fast.

plus the blades sucked so bad at 256 mining no one every did  mine them that way.

If this gear is like that people will not be happy. and no one has seen them mine 256. or scrypt in a you tube video.  be careful don't be quick.

or jump in and get a deal.  No one knows.

I tell you if J4obberwocky gets his development kit running maybe he will let us know what the chips can do.

@J4obberwocky any luck with the board?

Thanks for sharing your experience with them.  As I have no experience with them.  I will probably give them a try with group buy for 2 to 4 rigs if they will approve a group buy for someone in the US.  My intent is still to have a mining operation in Washington State.  Was planning on the 4th Quarter of this year of 1st Quarter of 2016.  Now it's looking like 1st or 2nd Quarter of 2016.  Who knows, I may end up with most of my equipment being SFards.

Thanks again for sharing.

I have a bit of experience dual mining with Greedseeds 5 chip product. Each side can be "tuned" individually but they do NOT work reliably in "dual" mode. Miners will slowly start dying over time requiring a power cycle to get them going again. Since I mine in a remote datacenter without the ability to easily power cycle equipment I resulted to only using the scrypt side. On scrypt they are very stable running for months without fail. I have had mine running non-stop since they first came out.

Having just read the first 40 pages of this thread I am reminded of what Gridseed did with the release of their 5 chip product. They will absolutely try to maximize profits. Expect these new miners to initially be priced at a premium. There will be a limited number available and people will buy them. Once they ramp up production pricing will start to come down quickly.

The original 5 chip Gridseed was brought to market at around $300 and quickly declined from there. I am not at all surprised at the $1,129 price being discussed here. If they do not sell enough of their initial limited quantity it is very easy for them to adjust down.

It would be interesting to try and determine their cost including development and production to get an idea how low they can go before it stops making sense to produce them.

Edit: These would have to be priced at $183.41 for them to compete with the $999 ALCHEMIST 256 Mh/s miner since power cost is not a concern for me...strictly thinking about scrypt of course.