Quote from: ComputerGenie on May 25, 2017, 03:44:44 AM

Quote from: taserz on May 25, 2017, 02:48:02 AM

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If you do read back, you'll see that I'm all about the economics when making choices. I can't see any situation where T9s make sense (and I'm a guy that bought S7LNs [after S9s were released] and turned them into 5.1TH "S7"s). I'm sure you'll find those that are anti-S9 and will say that the added expense of the T9 is "worth it" for the "reliability"; however, if you do the math, every "bad" S9 found on Google, found on Bitmain's forum, and found on some random blog/forum added together likely equals less than 0.1% of units sold.
Given that you have the background, my suggestion would be to get the place (rent, buy, etc.), get it set up for what you think is your max (i.e.,most watts you can pull, most air you can move, etc.), and then, if you envision running 10, buy 10 S9s and let them do their thing. The only real difference between GPU mining and now is that ASICs have cgminer already on them and it's accessed/"controlled" via a browser (in over-simplified terms, an S9 [or the like] is a self contained PC and the ASIC cards themselves are the equivalent of what was, then, the GPU).

Oh wow that is really neat cg miner is on it just a little computer managing all the processors. So S9 it is I was semi sold on t9's reliability since I was reading about warranty stuff back and forth. But a new one from them has a warranty while the ebay ones are warrant less and cheaper. I think the warranty is worth buying new. Am I better off waiting since the S9's were last years asics won't there be a new one coming out soon?

Quote from: Hockeybum on May 25, 2017, 03:54:35 AM

Make sure that your 240 V is really 240 V; at my house I have 120/208, so I am just running 2 13.5 THS S9 Antminers each on a separate 20 amp 120 v circuit, each with a 1600 watt power supply. I am also running 6 S9 Antminers on a 50 amp 240 V oven circuit from a 40 amp PDU, I believe the miners are pulling around 5.5 A each. On a 208 circuit the miners will pull 6.3 A. The three car garage where I have 6 miners in gets really warm during the day, so you have to really think about ventilation. Finksy sells power kits for bitcoin miners, I would highly recommend his equipment. There is a thread from him here https://bitcointalk.org/index.php?topic=966135.0. I did not see on the Bitmain site where T9 is for sale currently, maybe I missed it. The S9 is sold out and won't be shipping until July 5th. I have 13 more S9s coming in Friday, just waiting on the electrician to install (2) 3 phase 60 amp circuits at the shop. If he doesn't do it soon, I may sell these S9s and order more from the July 5th batch.

If it was a true 240v can't you run 3 s9's off it? I think my house is only capable of 200 amps does that even sound right. There are about 25 15 amp circuit breakers but of course they are not all maxed out or even close for the most part. I am thinking I should start off in my house or maybe running an s9 off a 120v just one to figure it out and configure it and what not and then once I know how to set these up then get a place or put it in a friends place if my house can't power this (sounds stupid I think it easily could) but I also found some workshops for rent with lots of power! I found Finskys thread earlier and I think that is the route I would go over doing the evga psu route many people go.

You have 13 more S9's coming in? Is this you investing money or the previous miners paying for the new miners? (Not to be a personal question but the profit in mining is very different from what it once was when I was big into this (granted people are putting up a decent amount of money on the hardware like I am thinking about doing).

If I was to spend 10 bitcoins on this project I figure 7 coins on S9's which means I can get 15 s9's but I will probably start with a few then get 10 then evolve into 15. Then use the other 3 bitcoins aka $7,500 for shelving wires pdu's power supplies and wiring for the house/rent of place/paying a friend/first months electricity.

The major draw back I have is I am not that tech savey with Electrical stuff. The 240v at how many amps and what I would plug in where is what is confusing a bit too. I understand what a pdu does. So in theory couldn't I plug a pdu into a 240v at 30-40 amps and run 3 or more s9's? I can't figure out how many amps these puppies draw on full load and I really don't want to be flipping breakers. Sorry if I am asking a lot but the one thing I learned in this community over the years is just ask and people are generals more than willing to help. Hmmm I think if I carry through with this I might do a nice picture tutorial/setup of what I did and why.

This is very much appreciated as a long time bitcoin user but an even longer bitcoin lurker on these forums