IN STOCK - OneStringMiner boards, up to 39GH/s last ITEMS: from US$15...FUN!!!

[BenTuras]

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

[BenTuras]

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

Code:

Volt	Amps	hwerrors	hash rate	temp	fanspeed
10V	1.0A	Y		~19GH/s		32.9	low
10.5V	1.23A	Y		~19.4GH/s	35.8	low
10.75V	1.32A	now and then	22-24GH/s	36.6	low
11V	1.38A	N		20-25GH/s	37.3	low
11.5V	1.6A	N		25-26GH/s	39.2	low
11.75	1.71A	N		28-29GH/s	41.2	low
12V	2.01A	N		30GH/s		44.5	low
12V	2.01A	N		30GH/s		44.5	low
12V	1.98A	N		30GH/s		33.0	medium
12V	2.03A	N		30GH/s		32.1	high
12.25V	1.98A	N		33.2GH/s	41.7	low
12.37V	2.04A	N		35.1GH/s	44.9	low
12.5V	2.01A	N		32.2GH/s	69.9	off

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...

[BenTuras]

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.

[mudge]

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

[BenTuras]

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

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.

[Dexter770221]

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

[BenTuras]

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

Thanks, you got mail.

[TheRealSteve]

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

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

[BenTuras]

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

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

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

[klondike_bar]

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

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

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

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)

[marto74]

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

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.

well
cheers Ben


Seriously
Congrats for  the great project

Martin

[BenTuras]

A few changes we made to the packages:
All DIY sets now contains tire wraps to fix the fan to the miner setup.
The DIY2 now contains two 10cm fans instead of one 18cm fan. The small fans performs much better. Temperatures below 45 degrees Celsius and 31,5GH/s per board(with heat sink).

We're making progress on the serial interconnect setup, but we're not there yet.
Still, every order shipped contains the serial interconnect cable.
Once we have finished the firmware with the serial interconnect, a manual will be available how to reprogram the boards.

Below a picture of a DIY0 tower setup with a Seasonic S12II-Bronze 520W feeding 16 boards.
On top of the tower you can see the Raspberry Pi, running minepeon.
Not visible is a D-link HUB7, feeding the raspberry and a 13 port cheap hub to connect USB to the individual boards. (3 boards are connected to the D-link).
Cgminer shows 414GH/s, an average of 25,9GH/s (obviously without heat sink) and temperatures below 60 degrees Celsius.

And last but not least, our first buyer in Asia has just received his package



If the red led is on, a share was found....

[KyrosKrane]

Random note - based on your pricing model, it's better to buy 7 x DIY2 for $3511 after discount, rather 1 x Elite ($3551) (though you do get more goodies with the Elite).

Based on your demo, can we reasonably assume each board takes under 32W (without overclocking)?

[BenTuras]

Random note - based on your pricing model, it's better to buy 7 x DIY2 for $3511 after discount, rather 1 x Elite ($3551).

Based on your demo, can we reasonably assume each board takes under 32W (without overclocking)?

The Elite comes in a nice black or white case (Coolermaster Elite) and is plug and play.
The DIY2 is as the name says, is do it yourself, so you need to add Raspberry, power supply, ...
(I do understand what you are saying, so I will have another look at the price of the Elite)

Your assumption is correct, 32W or below.

[KyrosKrane]

Yup, I edited my post a few seconds after posting to note that the Elite includes more goodies.  Looks like you beat me though!

[KyrosKrane]

You got me thinking here. It would seem your primary advantage over an Antminer is power consumption (6 boards x 32W each = 192W, compared to an Antimer's 350W+ for the same GH/s).  The trade-off is a much higher up-front price (1.085 BTC for an Antminer as of this writing, versus about 2.4 BTC for the same hashrate worth of DIY's, depending on the current BTC exchange rate).

How would an Elite compare in noise factor versus two Antminers? I have one at home, and the noise level is pretty high. I don't think I could add a second one without getting kicked out of the house, Antminers and all!  If the Elite is substantially quieter, that might be a selling point for you - though honestly, I don't know if it makes up for the up-front price premium.

[BenTuras]

You got me thinking here. It would seem your primary advantage over an Antminer is power consumption (6 boards x 32W each = 192W, compared to an Antimer's 350W+ for the same GH/s).  The trade-off is a much higher up-front price (1.085 BTC for an Antminer as of this writing, versus about 2.4 BTC for the same hashrate worth of DIY's, depending on the current BTC exchange rate).

How would an Elite compare in noise factor versus two Antminers? I have one at home, and the noise level is pretty high. I don't think I could add a second one without getting kicked out of the house, Antminers and all!  If the Elite is substantially quieter, that might be a selling point for you - though honestly, I don't know if it makes up for the up-front price premium.

Thanks for your interest in the Elite. In the coming days I will make a video of a running Elite in a quiet room (if I can find one ). I will post a link here.

[BenTuras]

Gents, if you email your orders to sales@btcguru.eu please fill in at least the bold items below:
Name:
Address:
Zipcode:
City:
Country:
Phone number:
To apply for 0% VAT, specify your VAT number:
Your order reference:
#DIY1:
#DIY2:
#White Elites:
#Black Elites:
In case we’re not able to start shipment on March 31st, you can ask for a refund. For this, please specify your BTC address:(since we're already shipping, this question is obsolete)
Your bank name:
Your bank account number:
Your IBAN:
Your BIC:

[BenTuras]

All orders have been shipped, and buyers have received the tracking information.

[BenTuras]

I have another auction running, this time on eBay: http://www.ebay.com/itm/OSM-DIY0-25-GH-s-Bitcoin-BTC-miner-based-on-low-power-Bitfury-chips-/271422364741