Actually for Klondike, some delay would be good.  The final version of the PCB is not yet ready, if the chips arrive we can't start assembly without a PCB.  We can't build the PCB without a final design.

I'm not sure what steamboat is planning for PCB manufacture, I guess this order might be large enough to make them in the US economically (and thus quickly).

It isn't clear that Steamboat will permit partially populated boards or what they will cost.  Stepping outside the normal with mass production is expensive.  You might be forced to buy the extra chips from his extras if you want a K16.

We're not ready to push the button yet, the h/w is still being finalised.

In Xilinx FPGAs the PLLs are very picky about the multiplier.  eg the multiplied clock must be between  800MHz and 1600MHz.  With a 100 MHz input you would never use a multiplier of 2 and a divider of 1 to get 200MHz, you would use a multiplier of 10 and a divider of 5 to put the multiplied clock into the valid range.  It might be worth sweeping the mutliplier range to see if certain values perform better.

He's already got 39GH/s not sure he needs more ;-)

Ok, so I paid for my batch 1 chip assembly and was waiting for the call up for batch 3 which I guess is not coming.

I've chosen different options for my two batches, not sure where to report this.

100000071 : batch 1
100000155 : batch 3

Thanks,
Tom

It's something about the way you download them, go to the head of the repository and pull the whole thing as a zip file then extract the schematic.

Can you confirm which heatsink design you're proposing?

Since people are in different chip batches I guess you're hoping to use someone like Colin who might only charge full setup once (PnP programming etc) even if the assembly batches are spread over time?

If you use Colin we might be able to split off Canadian orders and ship them direct.  Provided the volume is moderate I could act as the distributor for free.  We can meet in Portland in mid july so you can verify my identity etc.

I have some uncommitted chips with Steamboat in the same batch as you guys (I think I bought 34 in batch 3), give the potential shipping savings this could be the right deal for me.

Thanks, that seems sensible.  Perhaps it is possible on the rev 1 to use some 0R resistors to allow people to split the asics into two quads and power the second quad from a daughter board (with thick wires)?

This might calm some people.

We are getting close to the point where assemblers with multi week lead times need to place orders for components (especially for PCB manufacture at economic prices).  The chips might only be four weeks out (based first samples appearing a week or so ago and my recollection that their delivery was 4-6 weeks post samples).

*edit* wasn't directed at BKK, this is not news, was just replying to the original post.  I am confident BKK will get us there in good time and excited about the fact he's hashing.  I've brought up miners before, you get this weird feeling like you don't want to turn them off because they're earning money for you - you end up with wires everywhere and doing crazy things to avoid downtime (like moving miners across the room without any downtime).

There was a post a week or so back from the guy doing the i2c code that he had the chips communicating on a breadboard and BKK was going to merge in his code.

Personally I think this is unnecessary, you can just run a USB per K16, USB hubs are cheap and you get better reliability.  If you have a lot hanging off the one K16 and something goes wrong you have a lot less redundancy.  I have 32 FPGAs each on their own serial port (4 serial ports per USB port and a 12 port USB hub), each one has its own pyminer instance etc.  I lose pieces from time to time but the rest keep on marching.

Order 100000071, batch 1.

Am I waiting for another email for batch 3?

How do we know this is batches one and two only.  I have chips in batches one and three, am just paying for batch one for now.

I'm sure sb is watching the web site logs like a hawk, these issues will be fixed soon.

I saw them on Craig's for $500ea, you got a bargain!

My experience was 3 days plus 3 days will depend on your bank.  I said *just* :-).

In a rush your best option is probably https://localbitcoins.com/ (assuming you have cash).

For US residents I recommend coinbase, you might just be able to verify your bank account and withdraw in 5 days.  I am not affiliated with them in any way (nor am I a US resident).

One think I notice is no heat relief around the pads for the caps.  To get a better joint don't you usually use a pad attached to the plane rather than the plane itself?

Sure but a heatsink is kinda useless without a working circuit to generate the heat, this thread is focused on the first step, comparatively the heatsink is easy.

You seem to expect more than R&D in an R&D thread, there is nothing for sale yet here.  Most assemblers are offering heatsinks, if you want to assemble yourself try to buy from one of the assemblers.

Heatsink : https://bitcointalk.org/index.php?topic=208381.0

Depends what you want.  You can buy chips now and pay to have them assembled when they arrive.  If you want a finished product, you'll likely pay more the earlier you want it.  Late July, early August is when they'll become available.

This thread is mostly for R&D right now, the pictures above are the first ever AFAIK.

I already have a miner consuming 1kW, my house has 2x100A ie. 22kW (@110V), this is a 100yo house, most modern North American houses have 2 x 200A coming into them ie. 44kW.  Australian houses generally have 80A ie. 19.2kW (@240V).

Not sure about Europe but both of the about are a lot more than 6kW.


There are plenty of small businesses that legitimately consume a *lot* of current (think electroplaters for instance), you just need to be in a location with an independent street feed.