Selling $100k+ 50ghs+ Bitcoin Mining Operation w/ 104x 6990s [CLOSED]

[sveetsnelda]

Hmm guess it is different in different parts of the country.  Around here natural gas is common for cooking, hot water, and heating.  Really the only high current device most homes have is an AC.  Maybe that has something to do with it. Nobody needs 100A for a heatpump though.  30A, 40A for a very large one maybe.  Also heat pumps are horribly inefficient when winters are very cold so that would be the last place I would expect high current installs.

Interesting.  I guess the combination of the extremely cold winters and cheap electricity has something to do with it.  As far as the heat goes, I could certainly burn up 100A to heat my home in the winter here.  It wouldn't be drawn full-time obviously, but if I wanted to match my gas furnace in BTU output, I'd need 97A @ 240V.

If someone has a 200A panel no reason they can't run a large farm but it would make sense to drop some dedicated 240V, 30A circuits to avoid overloading rest of house breakers.

Of course.  You'd run out of power in no time trying to do this.  I run two 50A sub-panels.

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[max in montreal]

200 amps is typical here. Quebec has extremely cheap electricity.

[DeathAndTaxes]

Interesting.  I guess the combination of the extremely cold winters and cheap electricity has something to do with it.  As far as the heat goes, I could certainly burn up 100A to heat my home in the winter here.  It wouldn't be drawn full-time obviously, but if I wanted to match my gas furnace in BTU output, I'd need 97A @ 240V.

Probably.  I guess if electricity is cheap enough it can displace all other forms of energy.

Cold winters and cheap electricity.   That is a Bitcoin miner's dream

[rjk]

Interesting.  I guess the combination of the extremely cold winters and cheap electricity has something to do with it.  As far as the heat goes, I could certainly burn up 100A to heat my home in the winter here.  It wouldn't be drawn full-time obviously, but if I wanted to match my gas furnace in BTU output, I'd need 97A @ 240V.

Probably.  I guess if electricity is cheap enough it can displace all other forms of energy.

Cold winters Cold temps year-round and cheap electricity.   That is a Bitcoin miner's dream

FTFY.

I can haz North Pole + Geothermal energy?

[bluefirecorp]

Interesting.  I guess the combination of the extremely cold winters and cheap electricity has something to do with it.  As far as the heat goes, I could certainly burn up 100A to heat my home in the winter here.  It wouldn't be drawn full-time obviously, but if I wanted to match my gas furnace in BTU output, I'd need 97A @ 240V.

Probably.  I guess if electricity is cheap enough it can displace all other forms of energy.

Cold winters Cold temps year-round and cheap electricity.   That is a Bitcoin miner's dream

FTFY.

I can haz North Pole + Geothermal energy?

And a fibre line under the ocean.

[amazingrando]

I might be able to help you out.  I'll PM you with details of my setup and what upgrades are coming

[Transisto]

Has anyone gotten a reply from a PM ?

Sent him a PM on reddit, ogrrr and here, 2 days ago and nothing.

[btcx]

Some people have been asking for exact specs so here it goes.  Also, updated offer at the bottom.


Case (1):
1 x ($125) COOLER MASTER HAF 932 Advanced RC-932-KKN5-GP Steel ATX Full Tower Computer Case with USB 3.0, Black Interior and Four Fans-1x 230mm front RED LED, 1x 140mm rear, 1x 230mm top, and 1x 230mm side
http://www.newegg.com/Product/Product.aspx?Item=N82E16811119160


PSU (3):
1 x ($220) Antec TPQ-1200 1200W Continuous Power with PowerCache Technology SLI Ready CrossFire Certified 80 PLUS SILVER Certified Modular Active PFC Power Supply
http://www.newegg.com/Product/Product.aspx?Item=N82E16817371032
AND
1 x ($135) OCZ OCZ-ZX850W ZX Series Modular Power Supply - 850W, 80 Plus Gold, 140mm Fan, Active PFC, SLI & CrossFire Ready
http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=7213993
AND
1 x ($15) Bitspower X-Station Multi-PSU Active Module (Color - Various)
http://www.performance-pcs.com/catalog/index.php?main_page=product_info&products_id=23350
(note that this device did not work as intended.. I'm told that a newer version does.  We ended up using it just to jump the 2nd PSU to always-on, plus lights look cool).


Motherboard (1):
1 x ($180) MSI 890FXA-GD70 AM3+ AMD 890FX SATA 6Gb/s USB 3.0 ATX AMD Motherboard
http://www.newegg.com/Product/Product.aspx?Item=N82E16813130274


CPU (2):
1 x ($60) AMD HD700EOCK3DGI Phenom II X3 700e Processor - Triple Core, 6MB L3 Cache, 1.5MB L2 Cache, 2.40 GHz, Socket AM3, 65W, No Fan, OEM
http://www.tigerdirect.com/applications/searchtools/item-details.asp?EdpNo=186118
AND
1 x ($20) COOLER MASTER Hyper TX3 RR-910-HTX3-G1 "Heatpipe Direct Contact" 92mm CPU Cooler
http://www.newegg.com/Product/Product.aspx?Item=N82E16835103064


Memory (2)
1 x ($28) G.SKILL 2GB (2 x 1GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10600) Dual Channel Kit Desktop Memory Model F3-10600CL8D-2GBHK
http://www.newegg.com/Product/Product.aspx?Item=N82E16820231134
OR
1 x ($27) Kingston 2GB (2 x 1GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10600) Dual Channel Kit Desktop Memory Model KVR1333D3K2/2GR
http://www.newegg.com/Product/Product.aspx?Item=N82E16820134788


Video Card (3):
3 x ($735) MSI R6990-4PD4GD5 Radeon HD 6990 4GB 256-bit GDDR5 PCI Express 2.1 x16 HDCP Ready CrossFireX Support Video Card with Eyefinity
http://www.newegg.com/Product/Product.aspx?Item=N82E16814127574
OR
3 x ($740) GIGABYTE GV-R699D5-4GD-B Radeon HD 6990 4GB 256-bit GDDR5 PCI Express 2.1 x16 HDCP Ready Video Card with Eyefinity
http://www.newegg.com/Product/Product.aspx?Item=N82E16814125370
OR
3 x ($725) XFX HD-699A-ENF9 Radeon HD 6990 4GB 256-bit GDDR5 PCI Express 2.1 x16 HDCP Ready Video Card with Eyefinity
http://www.tigerdirect.com/applications/searchtools/item-details.asp?EdpNo=55285


Storage (1):
1 x ($6) Team Color Turn 4GB USB 2.0 Flash Drive (Purple) Model TG004GE902V
http://www.newegg.com/Product/Product.aspx?Item=N82E16820313060
OR
1 x ($6) Kingston DataTraveler 100 Generation 2 4GB USB 2.0 Flash Drive Model DT100G2/4GBZ
http://www.newegg.com/Product/Product.aspx?Item=N82E16820139291


Extra Stuff (3):
1 x ($10) Arctic Silver ACN-60ML (2-PC-SET) Thermal material Remover & Surface Purifier - OEM
http://www.newegg.com/Product/Product.aspx?Item=N82E16835100010
AND
1 x ($13) ARCTIC COOLING Arctic Cooling MX-4 AC-MX4 4 gram (g) All-Around Thermal Compound
http://www.newegg.com/Product/Product.aspx?Item=N82E16835186038
AND
1 x ($7) Gardner Bender 11 In. Natural Nylon Cable Ties (Pkg. Of 100)
http://www.homedepot.com/h_d1/N-5yc1v/R-100015143/h_d2/ProductDisplay?catalogId=10053

Estimated total cost of each machine, not counting time/labor/shipping/tax:  $2963.00

25 machines x $2963 = $74075, discount @ 25% = $55,556 = $2200 each.
29 extra 6990s x $725 = $21025, discount @ 25% = $15,769 = $540 each.
Total = $71,000.
Take it all and I deliver within US for $65,000.
Take it all and pick it up in Tennessee for $60,000.
I will consider a payment plan of up to 6 months for trusted individuals who wish to take it all.
I will consider a reward split maintenance agreement for some one with power <= $0.06 kwh.

[CA Coins]

I almost went with something similar a few months ago (smaller at ~20GH planned), but couldn't make it work with my power costs.  I hope you're able to work out a deal.  Good luck!

[hashking]

I have the ideal place for this.  I have a 2000 sq foot unfinished basement,  with 2 200 amp circuit panels.  Electricity with taxes and everything is about .11.  My basement stays cool in the winter and cool in the summer.

[shakaru]

Talk to amzingrendo. Hes is the only miner with a stable op, facility and CHEAP power. Good guy too. Trust him in my home.

[Transisto]

why do you have 1200W AND 850W ?

You could run those on a 1200 easily.

[btcx]

why do you have 1200W AND 850W ?

You could run those on a 1200 easily.

measured pull is up to 1600w

[the joint]

$100k?  Damn dude, congrats.  You have as much mining equipment as my student loan debt (edit:  excuse my horribly constructed sentence).

[sveetsnelda]

why do you have 1200W AND 850W ?

You could run those on a 1200 easily.

^this.

why do you have 1200W AND 850W ?

You could run those on a 1200 easily.

measured pull is up to 1600w

If you're only getting 2100Mhash out of each rig and drawing up to 1600W per rig, you're doing something wrong.

I have 11 rigs with 4 6970s each and they are getting 1580Mhash @ 683 watts.

If I crammed 6 6970s into a rig, I'd get about 2370Mhash/sec at just under 1000 watts.

Since the 6990s have two of these chips on one PCB, the wattage would be slightly *lower*.

Get those clocks/voltages fixed.  1.31Mhash/watt on 6990s is miserable.  Better yet, send them to Idaho and let me run them.    Commercial rates are *FOUR* cents per kilowatt.    Cold winters and dry summers (evaporative cooling > AC any day).  I'm currently running 45Ghash and can cool it with 560 watts of fans+pumps in the summer (paying nothing for cooling in the winter.  Heating my house, actually).  I'd buy them, but your rigs cost almost 3 times what I paid for my 45Ghash equipment.  They're certainly well built though.

[Seal]

Any pics of your setup?

[shakaru]

$100k?  Damn dude, congrats.  You have as much mining equipment as my student loan debt (edit:  excuse my horribly constructed sentence).

Maybe you need to re-consider that investment?

[the joint]

$100k?  Damn dude, congrats.  You have as much mining equipment as my student loan debt (edit:  excuse my horribly constructed sentence).

Maybe you need to re-consider that investment?

   It was those years I spent at the University of California as an out of state student.  In state = ~$8000/yr.  Out of state = ~$25,000/yr.

[shakaru]

$100k?  Damn dude, congrats.  You have as much mining equipment as my student loan debt (edit:  excuse my horribly constructed sentence).

Maybe you need to re-consider that investment?

   It was those years I spent at the University of California as an out of state student.  In state = ~$8000/yr.  Out of state = ~$25,000/yr.

That is one of the biggest problems with our higher education system out here. I live in California and was amazed when my friends told me what their tuition was compared to mine. Even worse, when I moved to Australia, I payed less as a student there than their own citizens.

[Mushoz]

Out of curiosity, what cases are those on that picture? Are those Haf X cases? Were you running them with the cases closed? And what kind of temperatures were you getting on the 6990s with what kind of ambient temperature? And one last question: What PSU are you using?

Thank you very much in advance