Topic: ASICMINER: Entering the Future of ASIC Mining by Inventing It - page 441. (Read 3917543 times)

Not yet at least.

But it's kind of expected, what with the actual chips supposed to arrive today.

so no dividends this week?

Their wavers are not made in China as far as I know, so they don't need the money in China.

Also, Hong Kong is not China. It' the freest economy in the world. it's an off-shore tax haven, it's where Chinese and businesses around the world keep their money save from their own government (seemingly, lol).

Hong Kong retains top spot of world's freest economy
http://www.bbc.co.uk/news/business-16523643

Hong Kong Bitcoin Exchange:
https://anxbtc.com/

The last 5 times china "banned" bitcoin seem to have had no effect on AM why will it this time?

Good points. Though it doesn't change the rack + power costs in a DC you rent, you need to keep it in mind if you build your own DC without the containers.

When you think a container can host 5 times the power in a space 20% smaller, it would be crazy to go for a regular DC. I bet Rockxie has a lot of space and is planning his own "ghetto" DC instead (he'll need 180sq feet per 54KW, 900 sq feet per 270KW, or about ... 666 sq feet per 200KW - though 667 is closer, it's less fun ).

In the next round of shareholder questions, I would like to ask how the crackdown on Chinese exchanges will affect the operation. I imagine the lack of Chinese exchanges would be an impediment to moving in/out of BTC/fiat that might complicate the operation.

And also, does the crackdown mean increased business risk for AM/Bitfountain? What is the risk, for instance, that an overzealous bank closes or freezes AM bank accounts?

I think you need to double that because doors need to open on those racks and you need aisles.

Let's say 700mm wide * 1000mm long, that's 0.7m² for a 42U rack with 2x (10A x 230V)= 4.6KW. A common price would be about 1000-1500 USD per month, electricity not included (at around 0.15 $/KW/h), or 2000-3000 USD, electricity included. Both have a 10Mbits internet connection.

DC's are really power (heat) limited and the power + heat dissipation cost is usually about 1.8x the power cost (1.2 in the very best ones).

So, in a regular DC, you need twelve (11.7+) 42U racks for a 54KW setup, or 8.4m² or about 90.4 sq. feet.

If you own the DC, the electricity you actually use will be 1.8x54KW= 97.2KW.




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 China )
●   No thermal throttling, possible performance increase
●   Fixed and predictable cost, no matter if fully or only partially populated


The equivalent in a DC would cost about:
60-90K USD per month for rack space
21-26K for electricity

or 120-180K with electricity included.
(If you OWN the DC, you need to pay less than 0.083 USD/KW/h to match the heat dissipation + power cost to your power cost in another DC charging 0.15USD/KW/h).

A regular 20 feet long container is 13.72m² or 147.7sq. feet. If you pay 10USD/sq foot/year in a warehouse (assuming zero security cost):
123.08 USD per month for rent
21-26K power cost
17-21K cooling (0.8x the power cost, since a regular DC will have power + cooling = 1.8x power -> cooling = 0.8 x power).

Does that look about right?

edit:
NB: not taking parts costs into account

DC: 71-116K USD/month
Container: 38-47K USD/month

so, container vs DC savings: 33-69K USD/month more profit for container
(no reason to take into account the "power included" DC)

+typos

To add to my calculations, I found that $10/square foot/year is about the average for renting a warehouse in my area at least.

So that equates to:

Immersion cooled: $26,000 electricity for cooling + $16,000 rent = $42,000/year
Air cooled: $260,000 electricity for cooling+ $160,000 rent = $420,000/year

How much does a 16,000 square feet datacenter cost vs a 1,600 square feet one.

If you look at this it doesn't look that cheap and it's just 1.4MW
http://arstechnica.com/information-technology/2014/03/meet-the-manic-miner-who-wants-to-mint-10-of-all-new-bitcoins/

Here's the video that was around for a while:
https://www.youtube.com/watch?v=5CjldZLXiAU

Energy saving he probably doesn't care much but it would make a huge difference in operations.

You can put 1.2MW of AM gen3 in a container that is remote controlled via a smart phone ;-)

I have no idea the rates of renting a datacenter but it cannot be cheap to rent 10 times the amount of space.

How much would the air cooled data center cost?

After doing some calculations I don't think the stated 65k per month in savings is accurate.

At $0.15/kw
50kw = $5,400/month (air)
5kw = $540/month (immersion)

Not sure how much you would save monthly by renting a datacenter 1/10th the size.

If the savings would be more than $5000/month then the immersion cooled datacenter would pay itself off in 10 months.

I have that feeling that this new guy here smilence actually knows what he's talking about    better than us ...

I don't understand why Rockxie stated immersion cooling is too expensive in his Q/A. Start up costs versus operating costs maybe? Q. 6.

https://bitcointalksearch.org/topic/m.5872404

Immersion cooling is cheaper, that's the point of it.

A little bit of fluid in a bathtub with bare mining boards costs less than cases, heatsinks, fans, shelves, cables, screws, nuts, bolts, thermal grease, house, all that and people to put it all together.  You only need 200cc to cool 4kW.

If you have 1MW power and spend X kW on cooling that's X kW more mining gear you can deploy if you use immersion. No matter if you use hydro or burn coal for your power it's unrelated. Power is valuable.

And it saves possibly hundreds of board developers time to develop/test/source/buy/produce/ship all that. Miners are reduced to chips on boards, that's it.

Boards can be made smaller and have more chips on them because now there are no thermal issues.

All that in a shipping container instead of a complete building. If the IRS comes after you, you take your container and move ;-)

When new chips (28nm) come along, you throw away the old ones and stick the new ones in.

The boards make more Bitcoins because they run faster (performance increase).

The boards make more Bitcoins because they some online weeks earlier (board developers can focus on board and chips and get them out ASAP instead of doing all the thermal and other design and start looking for parts).

Unless you like Ikea shelves of course and/or you just deploy a few TH.

http://www.immersion-cooling.com/publications/Analysis_of_Large-Scale_Bitcoin_Mining_Operations.pdf

Not sure what kind of "3M™ NOVEC™ ENGINEERED FLUIDS" they use  , but check this link , http://www.copsplus.com/prodnum5327.php

Is it cheap ?

Why not both?

My Chinese friend rent some hydropower station for mining , better than expensive immersion cooling