does any one have input on this subject?
i'm wanting to increase the size of my small farm but the power limits at my house are preventing that (100amp, no 240v). there are commercial lots available nearby that offer 480v 3 phase power. i have very little knowledge of how to run 12v gpus on this type of power. i mostly buy pc power supplies and so far only run them at 120v. A quick search for 480v 3 phase power supplies shows some but they output 24v and are expensive. most servers run on 208v? and i've seen the server power supplies converted for gpu's with the breakout boards and custom wiring, but what is needed to connect even that setup to 480v 3 phase? i doubt there is any inexpensive way to do this except maybe by second hand server equipment. so any brief explanation of how people have powered their mining farms would be appreciated. thanks
Topic: Advice on Mining Farm Buildout - page 2. (Read 4092 times)
Thank the lord there is someone out there! I have done a lot of research regarding infrastructure but the wiring of the PDU's was the only thing I did not understand much when posting. If you really want to learn how to do it professionally then I could suggest some literature that helped me but you will have to wait until I get back home for an author and title.
For goodness sake...the guy is asking about logistical advice with regards to infrastructure set up.
Random off topic questions or statements questioning his profitability or choices on what to mine is not what he is looking for.
I planned on following this thread to learn, but felt the need to say something.
Random off topic questions or statements questioning his profitability or choices on what to mine is not what he is looking for.
I planned on following this thread to learn, but felt the need to say something.
Amen! The topic starter is living my dream man. If I had the funds to go big I would in a heartbeat
For goodness sake...the guy is asking about logistical advice with regards to infrastructure set up.
Random off topic questions or statements questioning his profitability or choices on what to mine is not what he is looking for.
I planned on following this thread to learn, but felt the need to say something.
Random off topic questions or statements questioning his profitability or choices on what to mine is not what he is looking for.
I planned on following this thread to learn, but felt the need to say something.
Hahaha well it is in my initial paragraph but I will repeat it again. I will purchase a 30 ton Liebert down flow CRAC unit that will take the return air from ductwork at the top and distribute cold air from beneath the raised flooring. I will be doing the hot aisle/cold aisle setup used in most modern data centers. Essentially the hot aisles will have the return vents and the cold aisle will have 55% high air flow grates in the floor that will then feed all of the miners with cold air. 1 kwh=3517 BTU's of cooling and there are 12,000 BTU's per ton. I have enough room to put 40 additional rigs in that room before I will need to add another 30 ton unit so it leaves me with some room to play. The price of electricity is .11 per kwh and as far as humidity goes it is regulated by the CRAC unit which is also usually used in data centers. I could go with the traditional fan setup but I am going for efficiency and sustainability so I am willing to pay more for the initial setup.
Hey OP, what kind of cooling setup do you have for that many GPUs? (240 right?) I saw that yun9999 has two 5000CFM fans in his garage in Texas for about the same size setup (i think). How are you dealing with the Florida heat/humidity? And whats electric like there?
The Scrpyt miners you are referencing can mine no other algorithm other than Scrypt as far as I know. In addition, Bitmain has stated that they have two times the current hash rate in the first two batches which means that difficulty will substantially increase and payout will inversely decrease. I don't think ASICS will ever really completely trump GPU's because of this issue. With GPU rigs you at least have a barrier to entry that requires some technical knowledge. ASICS are simply plug and play.
Why? Even with .11 per kwh on my electricity there is still 7000 dollars profit every month with 20 rigs. That is after the subtraction of electricity of the rigs, electricity for cooling, insurance, water, internet, and of course rent. I really was just looking for some help in regards to infrastructure since I have already ascertained that it is profitable to mine.
Have u tested this or is this your assumption with online calculators??
I pay .17 per kw/h and still make a fair profit. Based on actual power usage and actual hash rates from the hardware I have mining right now
20 rigs as in 20 x 6 gpu? 120 gpu?
Even with .11 per kwh on my electricity there is still 7000 dollars profit every month with 20 rigs.
My profit ratio works out to be roughly the same as yours with my current 10 rigs - but looking to increase that by another 20 when I can source the components which with motherboards and GPUs (RX480 range extremely difficult to get more than one or two at a time in England) being scarce. I'm just signing a lease on some warehouse space about 1500 sq ft, so electrics, cooling etc are next..
No there is a difference between algorithms when it comes to hashrate. I am mining Equihash and I get about 2700 h/s with 6x 1070's. You get 13.7 Th/s with the latest S9 Antminer but that does not mean the antminer is better or more profitable than the GPU rigs. I try to stay with GPU mining because of the ability to switch between coins and also because I generally do not like ASICS. All that happens when a new ASIC comes out is the early buyers make out and then the difficulty goes up so high that the later buyers generally struggle to ROI. GPU rigs can also be liquidated much easier should you ever need to.
Yes but once this is in, litecoin mining is gameover for gpus and if it can be used for other coins, more gg
I would probably go with a major distributor(Ingram Micro, D&H, etc) if you have a business license and if not then yes there are alternatives to purchasing large quantities of components for rigs.
If ordering in bulk you could try www.superbiiz.com --- They don't ship as fast as Newegg or have as many sales, but you can order in bigger quantities. If you are going to order 50 at once you might want to contact them directly to see if they have a bulk discount.
Hey
I need help as well.
Where can I buy 50 graphic cards from?
I live in united states
I need help as well.
Where can I buy 50 graphic cards from?
I live in united states
You're doing an operation at a scale much larger then I have any personal experience with, so I'm not sure how to answer your questions. I would definitely love to to hear from guys that have run commercial server setups and how they dealt with the heat, airflow, and electrical needs. Pictures of the process as you set it up too would be sweet.
We're having work done in our barn this month to make it a little more finished off and will be setting up some rigs out there once everything is ready. It will be a much smaller scale (working upwards to 13 rigs eventually) with a bit more of a redneck vibe to it I imagine.
We're having work done in our barn this month to make it a little more finished off and will be setting up some rigs out there once everything is ready. It will be a much smaller scale (working upwards to 13 rigs eventually) with a bit more of a redneck vibe to it I imagine.
No there is a difference between algorithms when it comes to hashrate. I am mining Equihash and I get about 2700 h/s with 6x 1070's. You get 13.7 Th/s with the latest S9 Antminer but that does not mean the antminer is better or more profitable than the GPU rigs. I try to stay with GPU mining because of the ability to switch between coins and also because I generally do not like ASICS. All that happens when a new ASIC comes out is the early buyers make out and then the difficulty goes up so high that the later buyers generally struggle to ROI. GPU rigs can also be liquidated much easier should you ever need to.
Have you looked into renting space from a local colo? Won't have to worry about internet, cooling, insurance, security, etc.
Would the numbers for that make sense usually?
Btw, the antminer l3 https://shop.bitmain.com/productDetail.htm?pid=000201704270330299161GIIoSKl067B can do about 500mh hashrate for 800watts. This is for scrypt right?
An rx 480 is about 25mh for 140watts if i recall right.
That means only 150mh hash for 840watts
Gpu would nt be able to compete right?
Gpu and antminer l3 are for scrypr right?
Ya I would rather run my own operation than to utilize any collocation services. I am running windows on my rigs since it is what I am most familiar with it in comparison to Linux.
Have you looked at mining Skein based coins at all? And multi-algo mining? I've found it much more profitable with the right setup. Are you running Windows or linux on your rigs?
I have actual hardware that is running right now of course and I keep a spreadsheet of payouts and fees for tax purposes. I know the power companies commercial rates so from there it is fairly trivial to calculate. Cooling costs are roughly 50% of the cost to run the miners depending on the time of year of course. Zcash is especially good to mine for the long term so I am just sticking with that for now.
Have you looked into renting space from a local colo? Won't have to worry about internet, cooling, insurance, security, etc.
Why? Even with .11 per kwh on my electricity there is still 7000 dollars profit every month with 20 rigs. That is after the subtraction of electricity of the rigs, electricity for cooling, insurance, water, internet, and of course rent. I really was just looking for some help in regards to infrastructure since I have already ascertained that it is profitable to mine.
Have u tested this or is this your assumption with online calculators??
I pay .17 per kw/h and still make a fair profit. Based on actual power usage and actual hash rates from the hardware I have mining right now
U are talking about gpu mining and not bitcoin right
Well this is the altcoin subboard ain't it?
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