Topic: Selling $100k+ 50ghs+ Bitcoin Mining Operation w/ 104x 6990s [CLOSED] (Read 5450 times)

I think the HAF X would have been easier, yes.  I don't remember why we didn't get those.. maybe they weren't available at the time.  Temps stayed lower with the cases closed, and temps will depend a lot on what your external temps are.  I don't remember what those temps were.

I've managed to work out a deal with someone on the forums to take all these rigs off my hands.  Thanks everyone for your interest.

Btw, we could use some help testing our our DGM pool, which is currently at 47gh and paying a 5% bonus:  https://ogrr.com/viewtopic.php?f=373&t=1042

Just found out what you're using in the original topic, impressive stuff! I see you modded those HAF 932 cases so they could house 3 cards with enough spacing between them for fresh air. Clever! Wouldn't a Haf X case be easier/better since they would work exactly the same unmodded? Ah, well, I digress.

Could you still please tell me whether you ran those cases open or closed? And what kind of temperatures you were getting in what kind of ambient temps?

Thanks again !

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

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.

   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.

Maybe you need to re-consider that investment?

Any pics of your setup?

^this.



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.

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

measured pull is up to 1600w

why do you have 1200W AND 850W ?

You could run those on a 1200 easily.

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

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.

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!

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.

Has anyone gotten a reply from a PM ?

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

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

And a fibre line under the ocean.

FTFY.

I can haz North Pole + Geothermal energy?

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