I sent a PM but no reply yet; I can offer a gold/silver 2013 casascius or simply pure BTC in exchange for the bearer bar

so if my antminer was 192.168.1.99 and the router was 192.168.1.1 - whould i use

option api_allow 'W:127.0.0.1,W:192.168.0.0/24' or option api_allow 'W:127.0.0.1,W:192.168.1.1/24' ?

how do i enable this?

Would this work for controlling a few Antminer S1 devices, or only USB/PCI devices?

No pictures until the end of the week - but very soon I will have 20kW of power (in both 12v and 240v flavors)  setup in a private area at the back of a small warehouse - about 5 different electricians coming to give quotes between today and tomorrow.

With power in place, my current 1.3TH will be moved to the location, followed by the best TH/$ that 15BTC can afford. From there, its a simple issue of ramping up to capacity and offering a canadian hosting service for other miners.

Checked out the location yesterday - and it looks ideal.

There is about 20kW of power available, and 600V three-phase access if a transformer upgrade ever becomes needed. The location is slightly different from expected (in a good way), and is actually on a second-level grated floor over the lower storage area. A few filing cabinets and boxes of stuff will be moved aside, and roughly 6'x8' should be available off-the-bat, and more can be cleared as/if needed. The metal grated floor should allow a nice cool airflow from below, and the area is currently secured by a locked door at the bottom of the stairs to it (its a larger second level with other things stored up here) and I am considering the installation of a second fence/gate if the need for additional security and locks should arise.

Today I am contacting electricians - the existing fuse panel is located about 40ft away on a different (connected) wall, so running power across will be a breeze - I just need to get a good quote (I am hoping in the $350-500 range). I have not yet decided whether to run ~20 power cables across this distance to thier respective outlets, or simply run a FAT 120V cable or two and install a secondary circuit panel that breaks out to the individual outlets. This would give me a little more control over the circuits and limit the number of wire runs along the ~40ft distance so they are rather a few 3-5ft runs from the panel to the outlet. I imagine this may cost more since a panel may add an extra $150 (minus the the dozen+ 40ft wire runs i would avoid)

The goal is still to have my current equipment in-place by the end of the week, and then start looking for any interest from current miners to have their equipment hosted in the same space while I deal with other things such as setting up a local terminal with VPN, installing some security cameras, installing extra sheves or tables, etc.

edit: electrical is a lot more money than expected - Ive had estimates of everything from $1200 to $2700! Looking for the bets price before proceeding, as I initially had planned/hoped to stay under $750

Its not a BAD idea, it just isnt a very good one.

There is no need for a PCI-shaped miner - 95% of end-users will have it sitting on a table surface connected by USB. It would make more sense to adapt it to just be a standalone miner instead, and transfer the costs of making it pci-compatible into the costs of building a small casing for it to sit within.

I found the earlier units (up until the 2.2/2.4BTC pricing rounds) usually ran in the 48-54 degree range when i clocked at 387 or 400. The newer revision tends to be happier sitting in the 43-47 degree range, perhaps due to the slightly bigger fan.

Dont include a power supply - there are a ton of reasons.
1) it adds a lot of shipping weight - perhaps an extra $10-30
2) you probably will not get them any cheaper then the end-consumer
3) some buyers have power supplies, AND/OR will use server power supplies that are much cheaper

I would do what KNC did and include tails. Perhaps even include a small distribution bar for the tails (ie: a few nice big ring/screw terminals for bare power leads, and a bunch of PCI sockets that would connect to the unit's PCI tails) so that anyone running a raw 12V PSU that doesnt include any sort of connectors can run some fat 12V cable to the unit without needing to do all sorts of splicing to make it compatible with a PCI connector

Ive had issues using slush's pool and asics before - i imagine thats corrected by now but it might not be. I find eligius does a terrific job - 5 antminers average 990GH (all clocked in the 375-400 range)

I did not mean to disclude labour from my numbers, but I was partially writing some of it into the different fab steps (ie: the pcb fab estimate includes the labor/time of production). Bitmain simply assembles and tests the miners prior to shipping (2hours per unit would be generous i think)

1.45BTC is still about $1000 - consdering that bitmain chips probably only cost $2-4 a peice ($120-240 total) + 2x$10 heatsinks + $30 control module + PCB and parts (<$120) + shipping (<$100) = something between $300 and $600 for each unit to produce.

I agree though - hopefully a return to a >$700 BTC will allow a price drop

^yeah, its weird because I just dont see a unit making more than 1.3BTC between march 2nd and its obsolete date sometime in the late fall, unless bitcoin difficulty jumps all stay around 15-20% during that time

^Fixed

Here is my brief email conversation:


They clearly offer a range of legitimate payment options on the home page, but only accept bitcoin. If that is not a scam - then I dont know what is. After the most recent reply i got from them above, I imediately asked that they explain or remove the paypal and visa logos, and have not heard back yet.

you can run 15A on 14AWG or 20A on 12AWG.

I imagine you would need 8AWG cable to run >40A, however I dont know why any electrician would do this. Why not run 3x20A breakers to a handful of outlets?

I am willing to offer escrow as a semi-senior member here. Obviously the internet is not a good place for blind faith, doubly-so when you trust people with less than 50 posts or under a month of 'existance'

http://btcinvest.net/en/bitcoin-mining-profit-calculator.php?diff=2621404453&dcosts=1200&diff_mincrease=20&blpbtc=25&dhsmhs=190000&diff_mincreasedecrease=0.1&btcusd=800&dpowcon=30&btcusd_mincrease=0&pcost=0.15&calcweeks=20&dleadtime=2&action=calc

You would be lucky to break even by the fall, and that isnt even considering the unincluded costs of cooling (generally estimated at 30-40% of the hardware power use)

In fact, here is a more reasonable graph, which assumes difficulty jumps averaging around 17-23%, where break-even does not occur until november:
http://btcinvest.net/en/bitcoin-mining-profit-calculator.php?diff=2621404453&dcosts=1200&diff_mincrease=25&blpbtc=25&dhsmhs=190000&diff_mincreasedecrease=2&btcusd=800&dpowcon=30&btcusd_mincrease=0&pcost=0.20&calcweeks=27&dleadtime=2&action=calc


unfortunately, I will be holding my BTC until a better priced option is available. 1.45BTC was a bit priey 2 weeks ago. in 2 weeks from now, its risky

Bitpop acted as an escrow agent for me and did a fabulous job! A+

because that looks legit...