Topic: IN STOCK - OneStringMiner boards, up to 39GH/s last ITEMS: from US$15...FUN!!! - page 15. (Read 38787 times)

The auction works well for deciding an agreeable price that people will pay. There is nothing more embarrassing then to start an auction with too high a price and have no bids. (looking at you, avalon)

The main purpose was publicity and exposure, and we got that for sure.

Class act!  And yes, the auctions ended up ridiculously low - lessons for potential future auctions

Thanks, you got mail.

Overpriced but I just ordered 1pcs of DIY0. Want to pay with BTC. Check email.

No problem.
I think there are more things to consider besides the price.
And no, I am not going into details.
One can figure that out themselves.

I hate to be a pain but

http://technobit.eu/index.php?id_product=62&controller=product&id_lang=1

130GH/s @ 499 Euros
+ shipping so say 550 euros

Yours

120 GH/S @ 922 Euros

So I like the fact you have looked at the prices but still to high.

I would pay a premium for in stock items but not an almost 400 Euro primium.

Sorry

Looking at the result of the DIY1 and DIY2 auction it's clear that our prices are higher than buyers are willing to pay.
We can not go as low as the auction prices, that's even below our cost price.

Another issue is that the delivery of the 2nd batch of heat sinks is delayed, probably two and a halve week.
They were supposed to be delivered next week.

We still have heat sinks from the 1st batch, but stock is getting low.
I will post a message when we have run out of stock.

The boards can run without a heat sink, but absolutely no overvolting and you must run the boards with the included fan(Scythe Slip Stream, 120mm, 1900rpm) pointing at the board(s). The boards will run slower without heat sink, between 25-27GH/s and they will get warmer.
I'll make pictures of a setup without heat sinks and post them later.
I'll also post a drawing, in case you want to create your own heat sinks.

So, we are introducing the new DIY0 set, which includes everything from the DIY1, except the heat sink.
Heat sinks will be available to order separately, when batch 2 comes in.
The DIY1 heat sink is around $15, the DIY2 around $25.(Both will have the M3 and M4 screw holes, they are tailor made for the OSM boards).
Add ~$40 shipment
So there is a price disadvantage, because you'll pay shipping twice.
I did lower the price of the board a bit in my calculation, because of the lower hash rate without a heat sink.

These are the new prices:

Product		#boards		GH/s		outside EU price in $		price including VAT inside EU		price excluding VAT for business owners
OSM Elite		14		420+		$3551(was $4479, 20% off)		€3095(was €3920)		€2558(was €3240)
OSM DIY0		1		25+		$277		€242		€200
OSM DIY1		1		30+		$291(was $395, 26% off)		€254(was €346)		€210(was €286)
OSM DIY2		2		60+		$528(was $731, 27% off)		€461(was €640)		€381(was €529)

Because of these lower prices, we will refund the price difference to previous orders, even the ones that already shipped.

All prices include FedEx shipment.
The discounts when buying more than one still apply:
3-5 3% discount
6-10 5% discount
11-25 7.5% discount
26-100 10% discount

Payment in BTC is possible, just take the BitStamp exchange rate to estimate your BTC price.

Here is my amateur overvolting attempt of the OneStringMiner with a laboratory power supply that can't do more than 2.0A

The fan is connected to the OneStringMiner board, so the current used by the fan(fan low, board idle, current from 0.2A-0.32A) is included in the Amperage values in the table above(Except the last one, I wanted to push the PSU to the limit, which was 12.5V @ 2A). I just noted what cgminer and the power supply were showing a few minutes after restarting cgminer with every new voltage setting.

It's clear that I need a more powerful adjustable power supply.
I will get one and do the test again, trying to be a bit more precise with my testing methodology.

And it's amazing that most of the chips(only chip 14 was reporting hwerrors) can hash ~19GH/s at 10V, 1.0A, that's 1.9GH/s per Watt if I am not mistaken !

I will let it run for a while and see if the hashrate stabilizes at ~10V, 1.0A.

Update: It doesn't stabilise at 10V, the hashrate keeps on going up and down 15-19GH/s.
Amps go pretty low now and then, I have seen as low as 0.8A.
I think it's clear that not all chips are hashing anymore at this voltage.
Back to 12V...

Very stable running of the 2xDIY1 and 2xDIY2.
The usual variance can been seen.

Yes, all boards we have are populated. We offer a complete board with a discounted price when the buyer sends in Bitfury chips.
It's a courtesy service that we offer, which we can do for a few customers, but not many. Or else we'll end up with thousands of chips that first need to be put in a usable container before we can ask our supplier to make more boards for us.

I have been looking into server power supplies too. This is definitely one of the ways to push the OneStringMiner board to higher performance at the cost of more energy being used(and void your warranty). Another way is a laboratory power supply, but those are expensive and most of them are only a few Amps. I hope to be able to answer a previously asked question about voltage versus performance.
Intron already gave a good indication (~39GH/s) of the capacity of the OSM boards in his message.

Ah, so you've already caused to be populated all the boards you had.
Wait, so if someone sent in their chips, you'd send them an off-the-shelf board already made with off-the-shelf chips? Or cause one to be made and populated with their chips? Because if that's the case then it would not take longer to make a board with their chips than it would take to make a board with no chips at all.


Also sorry if I'm frustrating you. This design is flippin' cool and I really like it, just kinda want to understand what's possible. Someone asked me the other day what he might do with a couple dozen BF chips that had not yet been put to use and I was most interested in this design. If I can do what I want with a DPS-800GBA power supply board, it'd work with this miner to make overclocking as easy as turning a knob.

Of course I do, it's just quicker this way.
Complete boards in stock, empty boards have to be produced and then all components needs to be added without the Bitfury chips. And then the buyer needs to add the Bitfury chips.
More fun, I agree, but takes a lot longer.

So you don't trust people to stick on their own?

I already got a similar question, the best option I can offer is you send the chips to us and we'll send you complete boards. Obviously you'll get a lower price, you can deduct us$75 per board for each 15 chips you send to us.

Depends on how nice Ben is feeling/pricing for license from intron

So how difficult would it be to get some boards that didn't have BF chips already installed?

Your answer is worth every satoshi you claim
It's DIY as in build your own case, assemble it, hook it up, install the needed software and get it running.

People tie bitfury into rpi or beaglebone black because they are low wattage general purpose PCs.

This should run off a regular desktop. On windows you woul need the BiFury device driver .inf file to associate the proper drivers if you plan on using bfgminer. Cgminer should auto detect it



I agree DIY is a bit of a misnomer Ben, since the board comes fully populated and ready to go.

I suppose it's DIY compared to the elite (which is ready to go, just add pool creds)


My two satoshis.

Sorry if I missed something that was posted early on. How "DIY" is the DIY board? Is it possible to get basically just the board and sack of components? Or a basic board population but not the BF chips installed, for folks that already have 'em laying around?

Also just as a verification. I haven't worked with BF hardware myself yet, but everywhere I see people tieing them into RPi; is it possible to work this stuff from an actual real computer?