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1  Bitcoin / Mining speculation / Re: Trying to Start Mining in College on: July 31, 2018, 02:01:55 AM
You might be able to run 2 of the hash board, but it is unlikely to run all 3 (although there are rare reports of people running on 110V).

Its not a matter of voltage, its a matter of current.  Changing your voltage is not going to change the amps you draw out of the dorm room electrical outlet.

You could get a wifi to ethernet adapter, but wifi latencies may fool with your mining results.

What you didn't mention considering:

1)  The noise - An S9 sounds like a vacuum cleaner running full out (and an old noisy one at that)
2)  The heat - watts in = heat out.  So you will be running the equivalent of a space heater full time in your dorm room
3)  Fire hazard - most colleges consider miner fire hazards, since students due stupid things like throw blankets over them during room inspections
4)  Illegal use of school resources.  Anything provided by most colleges used for private profit is generally good for getting kicked out

Bitmain no longer owns the "Most efficient' title, although they still use it.  They are however, the cheapest/TH.

Ok so I just want to run through this and make sure I have the correct understanding of everything you're saying.

So on 110v, I would be able to run 2 out of the 3 boards, meaning the speed would be apx. 2/3 of max speed.

So my thinking behind steeping it up to 220v is that the APW3++ has a maximum output of 1600W at 220v, which would allow me to run all three boards and have the maximum speed.

So outside of connecting to WiFi, what would my options be?

I have heard noise can become an issue. Have not come up with a solid plan other the to suck it up and deal with it.

Since it really doesn't cost me anything, I'm simply gonna crank the AC all the way down. Should keep it nice and frosty.

Combining 3 and 4 here, I can't find anything stating I'm not allowed to have one, nor anything saying I can't make a profit on campus; however, both of these require more research on my end.

I appreciate your input. Thank you very much.
2  Bitcoin / Mining speculation / Trying to Start Mining in College on: July 30, 2018, 09:10:20 PM
Hello, Y'all!

I really hope this is the right place to post if not, sorry mods for making you do more work.

Anyway, the title pretty much explains what I'm going for here. I've been thinking about starting mining for a while; but, I decided to wait until college to save on electricity. All utilities come with the dorms, so it will help keep the profitability up. So here's my thinking so far.

I'm going with the Antminer S9. It's the most powerful and most efficient for the money. I don't think there will be too many arguments there. With that, I was planning on getting the Bitman APW3++. Seems to be sold with the S9 a lot, so I'm assuming it works well with it.

Here is where my first issue is, the outlets on campus are your standard household 110v, which, if I'm understanding correctly, the APW3++ can run on; however, it can only supply 1200W, while the S9 requires 1323W +- 10%, so for the sake of argument lets say 1450W.

So here's question 1, if I was to run the APW3++ off 110v, and it produced 1200W (i.e. best case), would the S9 still run, albeit at a lower speed, or, would it not run at all? Even if it would run, I've seen many places suggest using 220v power anyway. So outside of rewiring my entire dorm, would there be any way of converting 110v to 220v? I've seen online voltage converters but, I want to know if anyone had ever used these to mine BTC and what their results were.

Outside of that, my other concerns were connecting to the internet. What is the process of connecting an S9 to the internet, and would connecting to WiFi be an issue (if that's even an option)? Beyond that, my plan was simply to join a pool and start working.

Any answer I can get to these questions, or any comments or criticisms of this plan is greatly appreciated. Also if anyone else has mined while in college, I would love to hear about your experience.
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