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Author Topic: The Open Source Block Erupter Project  (Read 18645 times)
jimmothy
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June 14, 2014, 09:40:42 PM
 #101

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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?
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ManeBjorn
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June 14, 2014, 09:44:37 PM
 #102

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
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?

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June 14, 2014, 09:48:09 PM
 #103

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.
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June 14, 2014, 09:57:51 PM
 #104

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.
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June 15, 2014, 12:42:35 AM
 #105

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.

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.

Unacceptable
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June 15, 2014, 01:26:47 AM
 #106

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.

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

"If you run into an asshole in the morning, you ran into an asshole. If you run into assholes all day long, you are the asshole."  -Raylan Givens
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June 15, 2014, 03:52:30 AM
 #107

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.

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.

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

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June 15, 2014, 07:01:23 AM
 #108


Hi friedcat,

Is there open source cgminer driver? Or some other driver code could be referenced?
antirack
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June 16, 2014, 02:04:34 PM
Last edit: June 16, 2014, 11:31:30 PM by antirack
 #109

Here is the X24 blade immersed.

http://vimeo.com/98321051





necro_nemesis
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June 16, 2014, 02:35:49 PM
 #110

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
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June 16, 2014, 02:37:41 PM
 #111

It's a reference design as far as I know. It's not originally made for immersion.
CanaryInTheMine
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June 16, 2014, 04:43:34 PM
 #112

Here is the X24 blade immersed.

http://vimeo.com/98321051

<snipped pic>




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...?
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June 16, 2014, 11:12:29 PM
 #113

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

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June 16, 2014, 11:21:35 PM
 #114

Here is the X24 blade immersed.

http://vimeo.com/98321051

<snipped pic>
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.
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June 19, 2014, 06:28:53 PM
Last edit: June 19, 2014, 07:02:30 PM by Tsengar
 #115


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://bitcointalk.org/index.php?topic=655464.0
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June 19, 2014, 09:43:00 PM
 #116

Anybody working on upgrades for the original block erupter cube? Or maybe drop in cards I had seen mentioned earlier? If thats not possible can we open source all the block erupter cube and blade info. I would like for the community to have a shot at recycling them or at least underclock them a bit.

Steve

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firejuan
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June 20, 2014, 03:21:03 PM
 #117

I am not an EE or fabricator but I could obtain ~6,000 chips for a GB maybe a few more if friedcat is feeling generous about this project. Since, I am not a well known member and have not yet been vetted I would accept escrow for this order and would only place it if there was enough interest.

Edit: current price would be ~$5 per chip

armin22
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June 29, 2014, 04:25:26 AM
 #118

I just wanna comment here so i can come back and read shit i dont understand.

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July 02, 2014, 06:28:05 PM
Last edit: July 02, 2014, 09:31:08 PM by ZBC3
 #119

Friedcat,


Is hashratio an official BE200 miner manufacturer?

Thank you
hdbuck
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July 02, 2014, 09:19:42 PM
 #120

Friedcat,
Is hashratio an official BE200 manufacturer?
Thank you

More like a BE200 buyer?! Grin
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