The Open Source Block Erupter Project - page 2.

Tsengar

newbie

Activity: 9

Merit: 0

Quote from: Franktank on June 16, 2014, 07:21:35 PM

The current understanding is that DataTanks cannot be purchased independently. Rather, they are in groups of six per shipping container.
This option for high density mining will be aimed more towards franchisees, who have access to both the funds and electricity to maintain it.

From the DataTank Mining Prospectus
http://www.datatank-mining.com/files/DataTank_Mining_Ops_Prospectus.pdf

You can technically purchase as little as one unit (0.01kW) of a DataTank if you like, so no its not aimed only for big buyers.

[HAVELOCK] DataTank Mining: 1.2MW 3M Novec Immersion Cooled 2PH Mining Container
https://bitcointalksearch.org/topic/datatank-mining-12mw-3m-novec-immersion-cooled-2ph-mining-container-655464

Franktank

hero member

Activity: 560

Merit: 500

Quote from: CanaryInTheMine on June 16, 2014, 12:43:34 PM

Quote from: antirack on June 16, 2014, 10:04:34 AM

Here is the X24 blade immersed.

http://vimeo.com/98321051

so a DataTank holds 50 of x24s? 24*10Gh*50= ~12000-13200 Gh/s or 12-13.2 Th/s if my math is right?
this needs 10200-11880 Watts of power? (100 amps? @120V)
how much is a DataTank? when is it available for purchase etc...?

The current understanding is that DataTanks cannot be purchased independently. Rather, they are in groups of six per shipping container. Based off of this document (on pg 9-10), here are the supposed specifications:

Example 2.4PH 1.2MW Mining Container (ASICMiner Gen3)

● 6 tanks per container, 200kW-240kW each
● 400 boards each tank, 500W per board, 2,400 boards total
● Equivalent to 600 4U boxes
● Shipping container footprint instead of 60 racks in high density facility
● 2-3PH/s at estimated hashrate (based on reports from China24)
● No thermal throttling, possible performance increase to be tested with actual hardware
● Fixed and predictable cost, no matter if fully or only partially populated

This option for high density mining will be aimed more towards franchisees, who have access to both the funds and electricity to maintain it.

antirack

hero member

Activity: 489

Merit: 500

Immersionist

Quote from: CanaryInTheMine on June 16, 2014, 12:43:34 PM

so a DataTank holds 50 of x24s? 24*10Gh*50= ~12000-13200 Gh/s or 12-13.2 Th/s if my math is right?
this needs 10200-11880 Watts of power? (100 amps? @120V)
how much is a DataTank? when is it available for purchase etc...?

What I posted is one of many immersion tests to test various configurations/speed settings on different boards (not only X24).
The X24 blades have no relation to DataTank, they are with air cooling, with ATX power connectors and fans (all of which is not required for immersion).

DataTank:
Your math is off. Here are the design guidelines for DataTank (PDF):
https://docs.google.com/uc?export=download&id=0ByWHHc0u_thNdzB3c2hvVzJkcTQ

CanaryInTheMine

donator

Activity: 2352

Merit: 1060

between a rock and a block!

Quote from: antirack on June 16, 2014, 10:04:34 AM

Here is the X24 blade immersed.

http://vimeo.com/98321051

so a DataTank holds 50 of x24s? 24*10Gh*50= ~12000-13200 Gh/s or 12-13.2 Th/s if my math is right?
this needs 10200-11880 Watts of power? (100 amps? @120V)
how much is a DataTank? when is it available for purchase etc...?

antirack

hero member

Activity: 489

Merit: 500

Immersionist

It's a reference design as far as I know. It's not originally made for immersion.

necro_nemesis

full member

Activity: 224

Merit: 100

Quote from: antirack on June 16, 2014, 10:04:34 AM

Here is the X24 blade immersed.

http://vimeo.com/98321051

Which leaves me with the impression the X24 is additionaly the weapon of choice for AM mining and franchising.

antirack

hero member

Activity: 489

Merit: 500

Immersionist

Here is the X24 blade immersed.

http://vimeo.com/98321051

bigplum

newbie

Activity: 11

Merit: 0

Hi friedcat,

Is there open source cgminer driver? Or some other driver code could be referenced?

ManeBjorn

legendary

Activity: 1288

Merit: 1004

Exactly. I hope this unit does that. It looks to be built in such a way that it would benefit from pulling the air through.

Quote from: Unacceptable on June 14, 2014, 09:26:47 PM

Quote from: ManeBjorn on June 14, 2014, 08:42:35 PM

It is definitely directed in an efficient manner from the looks of it over the heatsinks.
I wonder is the fan pushes or pulls the air over them?
I know it some cases like the SP-10 Dawson having the fans pull helps for a more even cooling.
This miner is very elegant in it's design I am impressed I cannot wait to get one or more.
Great work Friedcat.

Quote from: jimmothy on June 14, 2014, 05:57:51 PM

Quote from: Chris_Sabian on June 14, 2014, 05:48:09 PM

Heat rises due to convection. What if you just turned in 90 degrees with the fan on the bottom to push air up? That way, the fan assists the natural flow of heated air upward.

I think convection should be neglegable with good airflow.

Looks to me like each board has the same heatsinks and airflow.

Don't forget,as you create a "suction",pulling air through instead of pushing it thru,you get a pressure decrease which also reduces temp.Very little,but the principle is there Wink

Unacceptable

legendary

Activity: 2212

Merit: 1001

Quote from: ManeBjorn on June 14, 2014, 08:42:35 PM

It is definitely directed in an efficient manner from the looks of it over the heatsinks.
I wonder is the fan pushes or pulls the air over them?
I know it some cases like the SP-10 Dawson having the fans pull helps for a more even cooling.
This miner is very elegant in it's design I am impressed I cannot wait to get one or more.
Great work Friedcat.

Quote from: jimmothy on June 14, 2014, 05:57:51 PM

Quote from: Chris_Sabian on June 14, 2014, 05:48:09 PM

Heat rises due to convection. What if you just turned in 90 degrees with the fan on the bottom to push air up? That way, the fan assists the natural flow of heated air upward.

I think convection should be neglegable with good airflow.

Looks to me like each board has the same heatsinks and airflow.

Don't forget,as you create a "suction",pulling air through instead of pushing it thru,you get a pressure decrease which also reduces temp.Very little,but the principle is there Wink

ManeBjorn

legendary

Activity: 1288

Merit: 1004

It is definitely directed in an efficient manner from the looks of it over the heatsinks.
I wonder is the fan pushes or pulls the air over them?
I know it some cases like the SP-10 Dawson having the fans pull helps for a more even cooling.
This miner is very elegant in it's design I am impressed I cannot wait to get one or more.
Great work Friedcat.

Quote from: jimmothy on June 14, 2014, 05:57:51 PM

Quote from: Chris_Sabian on June 14, 2014, 05:48:09 PM

Heat rises due to convection. What if you just turned in 90 degrees with the fan on the bottom to push air up? That way, the fan assists the natural flow of heated air upward.

I think convection should be neglegable with good airflow.

Looks to me like each board has the same heatsinks and airflow.

jimmothy

hero member

Activity: 770

Merit: 509

Quote from: Chris_Sabian on June 14, 2014, 05:48:09 PM

Heat rises due to convection. What if you just turned in 90 degrees with the fan on the bottom to push air up? That way, the fan assists the natural flow of heated air upward.

I think convection should be neglegable with good airflow.

Looks to me like each board has the same heatsinks and airflow.

Chris_Sabian

legendary

Activity: 896

Merit: 1001

Heat rises due to convection. What if you just turned in 90 degrees with the fan on the bottom to push air up? That way, the fan assists the natural flow of heated air upward.

ManeBjorn

legendary

Activity: 1288

Merit: 1004

The top as more heat would collect up there and possibly the bottom as it does not get the airflow the other three sides do?

Quote from: jimmothy on June 14, 2014, 05:40:42 PM

Quote

How does the bottom one and top one stay cool? Is the amount of air being moved enough to prevent hot spots?
Great work!!

Why would there be hotspots on the top and bottom?

jimmothy

hero member

Activity: 770

Merit: 509

Quote

How does the bottom one and top one stay cool? Is the amount of air being moved enough to prevent hot spots?
Great work!!

Why would there be hotspots on the top and bottom?

ManeBjorn

legendary

Activity: 1288

Merit: 1004

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!!

Quote from: friedcat on June 10, 2014, 03:59:38 AM

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.

ZBC3

sr. member

Activity: 361

Merit: 250

Thank you for the update Friedcat!

friedcat

donator

Activity: 848

Merit: 1005

Quote from: jimmothy on June 14, 2014, 01:20:47 AM

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.

jimmothy

hero member

Activity: 770

Merit: 509

Friedcat, any news regarding overclocking/undervolting?

friedcat

donator

Activity: 848

Merit: 1005

Quote from: ZBC3 on June 13, 2014, 12:59:42 PM

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.

Topic: The Open Source Block Erupter Project - page 2. (Read 18899 times)