The Open Source Block Erupter Project

[marto74]

 

good joke Bick

[Bicknellski]

Suggest you steer clear of Marto he has too many issues.

[marto74]

Suggest you steer clear of Marto he has too many issues.

I suggest you do not write in treads about HW design, until you do something working

[ChuckBuck]

Done our numbers and we are not building a cube.

Remember you are promoting this unit so the burden is on you to prove it not me. All I am saying is good luck nothing more or nothing less.

Let's see your numbers.

I don't need to prove anything as you are the one who is making such claims.

Anyone can tell that this miner would cost less to produce than hashratios $0.8/gh machines.

Have a look around plenty of examples of that happening right now with very similar designs. Be careful and good luck.

You mean like the rockminer rxbox which are being sold for around $1/gh?

Rockminer RXBox doesn't exist, it's still pixie dust.  It's delayed.  It's only $1/gh in your imagination.

Only one that's shipping is the RK-BOX, which is pretty much an overpriced ugly POS.

.9 BTC or $540 for 450 GH/s or over your precious $1/gh threshold and doesn't even include the power supply.

[dogie]

I definitely think open sourcing the hardware is a good thing. Why waste money developing standard PCBs in parallel when that can be concentrated on developing more efficient chips?

[ZBC3]

Friedcat,

Regarding the design for the new cube, will each boards of the cube require a power supply and Ethernet connection? Will the cubes need a stratum proxy to operate like your previous builds or are you updating the mining software?

[CanaryInTheMine]

Friedcat,

Regarding the design for the new cube, will each boards of the cube require a power supply and Ethernet connection? Will the cubes need a stratum proxy to operate like your previous builds or are you updating the mining software?

it's up to the community to design this... fc released info needed for someone to jump in and start designing.  (the Cube specs to be released, will help simply create replacement blades in exciting cubes if it's designed by the community in this manner)

[ZBC3]

Thanks Canary!

I take it that you'll be an official distributor when a product is finalized?

[jimmothy]

Rockminer RXBox doesn't exist, it's still pixie dust.  It's delayed.  It's only $1/gh in your imagination.

Only one that's shipping is the RK-BOX, which is pretty much an overpriced ugly POS.

.9 BTC or $540 for 450 GH/s or over your precious $1/gh threshold and doesn't even include the power supply.

Rxbox does in fact exist and it is not only around $1/gh in my imagination.

0.9btc is only $520 + $10 for a psu = $530 for up to 480gh/s or $1.1/gh.

Even less with preferential pricing.

[ChuckBuck]

Rockminer RXBox doesn't exist, it's still pixie dust.  It's delayed.  It's only $1/gh in your imagination.

Only one that's shipping is the RK-BOX, which is pretty much an overpriced ugly POS.

.9 BTC or $540 for 450 GH/s or over your precious $1/gh threshold and doesn't even include the power supply.

Rxbox does in fact exist and it is not only around $1/gh in my imagination.

0.9btc is only $520 + $10 for a psu = $530 for up to 480gh/s or $1.1/gh.

Even less with preferential pricing.

No it doesn't.  Rxbox was just a render.  It does not exist, yet.  From the horse's mouth:

Rocket-BOX(RK-BOX) is diffrent to RX-BOX.

Rocket-BOX:48 BE200, short,450G~480G
RX-BOX:64 BE200,long,~600G

As RX-BOX is delayed,RK-BOX will shipped out first. And we will use RK-BOX for replacement of RX-BOX. 2RX-BOX=3RK-BOX.

Dam, you're always off or wrong with everything...

[jimmothy]

Does delayed = nonexistent?

Is hardware from rockminer not being sold for $1.1/gh?

[ChuckBuck]

Does delayed = nonexistent?

Exactly.  No miner yet, just renders, cad drawings.

At least there's a physical picture of the RK-box, and Minersource is set to sell them July.

RXbox is anyone's guess still, no physical proof.

[jimmothy]

Does delayed = nonexistent?

Exactly.  No miner yet, just renders, cad drawings.

At least there's a physical picture of the RK-box, and Minersource is set to sell them July.

RXbox is anyone's guess still, no physical proof.

You don't know whether they have a working prototype or not.

Rockminer has working HW. And they are selling it for around $1.1/gh.

If $1.1/gh is overpriced, I'd love to know what you consider a good deal.

[ChuckBuck]

Does delayed = nonexistent?

Exactly.  No miner yet, just renders, cad drawings.

At least there's a physical picture of the RK-box, and Minersource is set to sell them July.

RXbox is anyone's guess still, no physical proof.

You don't know whether they have a working prototype or not.

Rockminer has working HW. And they are selling it for around $1.1/gh.

If $1.1/gh is overpriced, I'd love to know what you consider a good deal.

We'll see about Rxbox, for now anything involving that particular miner is pure speculation.

Rk-box is bulky, inefficient, noisy, full of wires everywhere, heavy and doesn't come with a power supply.  Not sure if it comes with a Pi either.

We shall see about "Rocket Box" when it finally launches, if it's up to spec and worth the price.

[jimmothy]

Just noticed that anyone who ordered an rxbox will receive extra hashrate after switching for rkboxes.

Looks like they paid ~$0.9/gh including psu and rpi.($0.83/gh at 480gh/s per)

[friedcat]

Friedcat,

Regarding the design for the new cube, will each boards of the cube require a power supply and Ethernet connection? Will the cubes need a stratum proxy to operate like your previous builds or are you updating the mining software?

For power supply: we are going to open source the PSU adapter for 4*2*6pin power sockets.

For ethernet: we are going to open source the ethernect controller based on microchip PIC-32 MCU with a built-in stratum proxy. Each controller can drive as many as 32 boards (8 devices). Remember that since the boards are chained in a string instead of connected to the controller separately, raspberry-pi or PC with limited IO ports would also do the job.

[jimmothy]

Friedcat, any news regarding overclocking/undervolting?

[friedcat]

Friedcat, any news regarding overclocking/undervolting?

300MHz at 0.78V works fine (need to change the 3kOhm resistors on BOM list to 3.6kOhm resistors).

Undervolting on this design is not effective as expected because as voltage gets down the efficiency of TPS53355 also decreases. Changing to a more dedicated DC/DC solution for lower voltage is recommended.

[ZBC3]

Thank you for the update Friedcat!

[ManeBjorn]

I want one of these so badly. 
Great design.  It must regulate the temp well.
How does the bottom one and top one stay cool?  Is the amount of air being moved enough to prevent hot spots?
Great work!!

We had AM_BE200_X24 boards sampled and tested. We also sampled the compatible heatsinks and supporting structures for them. It hashes at 768GH (each board 192GH) with 0.85-0.92W/G (PSU loss excluded). Power draws on higher/lower hashrate with higher/lower voltage is under testing. The design files of heatsinks/structures are going to be released a little later.



It should be emphasized that QUAD and X32 are also sampled and well tested before X24.