GekkoScience BM1384 Project Development Discussion

[Mikestang]

Alright, gotta clear the bench for some TypeZero module testing so I have to take down the jerry-rigged Compac prototype. After 9 days 21 hours of operation at 200MHz and 630mV (drawing 700mA from my 5V source) I have 18,700 accepted, 6 rejected and 24 HW errors off an average cgminer-calculated hashrate of 10.97GH/s. This means about a 99.8% efficiency and about 0.32W/GH which I'm okay with those numbers.

Today's tests are for the initial base design for the power systems on the TypeZero. The test build as it is should only go up to 20A on the DC output, but an extension will give me 40A capacity (more if I respec a few parts). I expect the TypeZero systems to draw at most 37A but stock setting will be more like 34A. Of course we'll build it to handle more than that just in case. Hopefully we'll see average efficiencies above 90% (ideally 95%) on this one.

Nice and clean test results, congrats!  Looking forward to this project coming to fruition!

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[quakefiend420]

Alright, gotta clear the bench for some TypeZero module testing so I have to take down the jerry-rigged Compac prototype. After 9 days 21 hours of operation at 200MHz and 630mV (drawing 700mA from my 5V source) I have 18,700 accepted, 6 rejected and 24 HW errors off an average cgminer-calculated hashrate of 10.97GH/s. This means about a 99.8% efficiency and about 0.32W/GH which I'm okay with those numbers.

Today's tests are for the initial base design for the power systems on the TypeZero. The test build as it is should only go up to 20A on the DC output, but an extension will give me 40A capacity (more if I respec a few parts). I expect the TypeZero systems to draw at most 37A but stock setting will be more like 34A. Of course we'll build it to handle more than that just in case. Hopefully we'll see average efficiencies above 90% (ideally 95%) on this one.

Nice!  Looking forward to seeing the first prototypes roll out of the lab.

[elrippo]

Very cooooloomatico 
Thank you very much for your work man

[philipma1957]

A quick question.

I have 2 s3's mining in a friends office.

Hoping to convert  them with the  TypeZero Module.

I got a one day ebay coupon today.

  I could pick up   2  s-1's  for  about 80 bucks.  40 each after the coupon.

I think I should do this. Any opinions.

I can leave the s-3's alone as they are using 2.4 cent power and still earn 45usd after power cost each month.

I could then have 2 very cheap s-1's to use for the upgrade boards.

Any opinions on this idea?

[eretron]

Funny, I had this idea a few days ago, so I've purchased 2 S1 units for 30E each.

For now they are door stoppers but in the future I hope to convert them to something useful.

So If you ask me, go for it

[HerbPean]

A quick question.

I have 2 s3's mining in a friends office.

Hoping to convert  them with the  TypeZero Module.

I got a one day ebay coupon today.

  I could pick up   2  s-1's  for  about 80 bucks.  40 each after the coupon.

I think I should do this. Any opinions.

I can leave the s-3's alone as they are using 2.4 cent power and still earn 45usd after power cost each month.

I could then have 2 very cheap s-1's to use for the upgrade boards.

Any opinions on this idea?

I'm also looking for cheap S1 close to me

[sidehack]

And I'm really hoping we'll be able to get chips from Bitmain to make S1 refit boards or y'alls money  is approximately going to waste.

If we can't get chips from them, though, we'll figure something else out. Hopefully. This project is too good to throw away.

[philipma1957]

yeah I am going to order 2 of them.  will post details later.

[Mikestang]

And I'm really hoping we'll be able to get chips from Bitmain to make S1 refit boards or y'alls money  is approximately going to waste.

If we can't get chips from them, though, we'll figure something else out. Hopefully. This project is too good to throw away.

So excited to see this happen!  I have one S1 that I run solo, despite it's operating cost, I would love to upgrade it with this hardware once developed.

[philipma1957]

Okay I have all my ducks in a row to buy either 2 s-1's or 1 s-3.

The logic buying the s3 is if this busts out I can underclock it and run it at  my friends office.

I have 2 at freq 212.

I could do 3 at freq 200  still stay within the power limits of his office and it would earn money until the boards project is finished here.

[HerbPean]

Okay I have all my ducks in a row to buy either 2 s-1's or 1 s-3.

The logic buying the s3 is if this busts out I can underclock it and run it at  my friends office.

I have 2 at freq 212.

I could do 3 at freq 200  still stay within the power limits of his office and it would earn money until the boards project is finished here.

You can also do the pencil mod so you can get close to 1W/gh

[sidehack]

You can get down to 0.8W/GH on the S1 if you really try.

[HerbPean]

You can get down to 0.8W/GH on the S1 if you really try.

I run mine undervolt at 55gh/s each blade. Never really checked how much watt I was using.

[philipma1957]

You can get down to 0.8W/GH on the S1 if you really try.

I got s-1's down to 1.1 watts

but I went ahead and ordered an s3+ for 84 to my door.

I may tear it down and do a pencil mod on it.  if I get it to .68 watts a gh  Doing that I would be happy .  I will run it with the other two at my buddies office.  Then if this board upgrade works out I will upgrade them.  If it does not 2.4 cent power will turn it into a good item.

[chiguireitor]

Sidehack, about this:

I was even thinking about putting edge connector pads on the board in case someone wanted to backplane them, which could get interesting. Basically a backplane with power and a USB pair to each socket, have a hub chip on the backplane and there you have it.

Is there any future plans about it? i have a design in mind and would like to know if you're planning a TypeZero-ish board later with a backplane design? Can i PM you with the idea?

[sidehack]

It's definitely possible, but we haven't made a decision whether to do this or not. Our own ideas for a rackable miner using 30-chip Spec2 (Prisma refit) boards do not make use of this feature, but that doesn't mean it's impossible.

[chiguireitor]

It's definitely possible, but we haven't made a decision whether to do this or not. Our own ideas for a rackable miner using 30-chip Spec2 (Prisma refit) boards do not make use of this feature, but that doesn't mean it's impossible.

Nice! i have a very-rough-around-the-edges design on blender that is thinked around 8 S5 blades, but i think it would be more fitting for a TypeZero build backplaned machine, being that it is a "community" product and whatnot.

Lemme know if i can bother you privately with my idea, just to bounce it off with someone that could conceive the brains of the final product. I know my labor & parts costs are very low due to my country of origin, but board design is a no-no here (Venezuela).

[Bicknellski]

It's definitely possible, but we haven't made a decision whether to do this or not. Our own ideas for a rackable miner using 30-chip Spec2 (Prisma refit) boards do not make use of this feature, but that doesn't mean it's impossible.

Nice! i have a very-rough-around-the-edges design on blender that is thinked around 8 S5 blades, but i think it would be more fitting for a TypeZero build backplaned machine, being that it is a "community" product and whatnot.

Lemme know if i can bother you privately with my idea, just to bounce it off with someone that could conceive the brains of the final product. I know my labor & parts costs are very low due to my country of origin, but board design is a no-no here (Venezuela).

Recycling existing backplanes would be nice.

 

[sidehack]

Translation: you want an S2 upgrade kit?

Unless someone made a backplane with power lanes capable of pushing at least 150W per socket (250W if you want the 30-chip board on it) and also have a USB data pair to each port, it wouldn't work. Did WASP build something like that?

[Bicknellski]

Translation: you want an S2 upgrade kit?

Unless someone made a backplane with power lanes capable of pushing at least 150W per socket (250W if you want the 30-chip board on it) and also have a USB data pair to each port, it wouldn't work. Did WASP build something like that?

We were working on our own backplane not sure of the capacity it had but I suspect something along that lines.

If you want to see the design it's up on the site we forwarded to Novak. I might be able to contact the engineer who designed it  and that might be something to discuss that with him if he has the time. He is based in the UK. PM me if you are keen on that.

We also did have contact with a company in HK that were running boards in Novec and they had their own backplane designed for air cooling and fluid cooling as well that we were looking into at the very end our efforts last May when I went to the Inside Bitcoin conference in HK.

We had imagined a universal backplane with plug and play boards that had different chips so that you could roll with the changes of every new chip and even mix and match boards on the backplane. Let me see what I can did up and I will email you guys on that.