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541  Bitcoin / Mining speculation / Re: Mining and Solar Electricity on: April 03, 2014, 08:40:08 PM
...  There's been a trend in solar to "oversize" systems by 20-30%.  By this i mean, if a customer is using 10,000 kWh/yr they may purchase a system that's generating between 12,000 and 13,000 kWh/yr.
... Over the course of a year the PV system overproduces 2,000 kWh of electricity.  As opposed to selling that electricity back to the utility company at say $0.04/kWh it may be better to drop off a "bit coin rig" at the customers house that's capable of using up the extra 2,000 kWh in the course of say a week.

You are over-complicating it. As has been mentioned, Bitcoin miners are left running 24/7 to maximize ROI. Lower hash-rate miners will also be cheaper, and (hopefully) use less power when running.

2000 kWh/year works out to ~231 Watts of continuous load. One of the ASICminer cubes may fit the bill there (but are not very efficient (240W, 30Ghash/s+controlling computer needed)). If the reconciliation is done at year-end, it does not really matter if the load is present all year or not.

Many of the new miners draw as much power as possible. So you may want to look into modular ones. The popular Antminer S1 draws about 360W.
542  Bitcoin / Bitcoin Discussion / Re: Bitcoins Are Intellectual Property on: March 26, 2014, 03:38:26 PM
Did You Say “Intellectual Property”? It's a Seductive Mirage

This is not the first time I have seen people compare Bitcoin to DRM Tongue
543  Economy / Service Discussion / Re: FINALLY! A simple bitcoin wallet for iOS, that works. I got the Pheeva! on: March 25, 2014, 04:44:25 PM
newbie "G1ng3rBr34dM4n" says download this and enter all your passwords - OKAY!  Grin

Alright, alright - I understand where you're coming from :-P


Part of the problem for me is that it was not clear what usernames/passwords you are supposed to "verify".

If I call my bank, they ask me to "verify" personal, non-secret information. However, they don't actually read it out to me. They expect me to know it for some reason. Not sure what happens if that information changes and I say something they don't expect Tongue
544  Bitcoin / Mining / Re: Nearly burned down my home due to mining equipment failure :( on: March 25, 2014, 04:30:10 PM
That's why it's very important to use high quality a-brand PSU's and not let them run 24/7 at 80%+ load.

So widly over size my PSU.. done.

Don't forget the "high quality" part. Cheap PSUs tend to have inflated ratings.

I bought the smallest capacity PSU I could find (380W) and am still nowhere near 80% load (drawing less than 200W).

I suspect you can run a quality PSU at 100% 12V load as long as you do not exceed the limits of the 12V rail. For example, My PSU (without checking) probably allows only 300W to be drawn on the 12V line. The other 8OW would be from the 5 and 3.3 Volt lines.
 
545  Bitcoin / Hardware / Re: [Guide] Dogie's Comprehensive ASICMiner Cube Setup on: March 24, 2014, 11:27:01 PM
I just use static IP addresses (outside of the DHCP pool).

I would expect that to be an all/nothing thing though. It does not explain partial hash-rates unless the poster above has 4 of 6 cubes working and is mixing them together.
546  Bitcoin / Pools / Re: [185 TH] p2pool: Decentralized, DoS-resistant, Hop-Proof pool on: March 24, 2014, 05:54:34 AM
However, I will say that the expected value of the p2pool payout method (if set to zero fees) is higher than the expected value of the eligius payout method for infinite time.
Can you derive this for me? I've just spent a bit of the afternoon on it and I can't see it.

fixed.
547  Economy / Service Discussion / Re: TD Closed my PERSONAL bank account for bitcoin related activity on: March 24, 2014, 05:41:26 AM
Quote
(which is cleared after 7 years).

However debt-free is not the same as no credit record. In this case you clearly knows what but choose to mislead us.


I have never declared bankruptcy. The credit reports only go back 3 years. Because my student loans were with RBC, they actually considered that when issuing a credit card.

548  Economy / Service Discussion / Re: TD Closed my PERSONAL bank account for bitcoin related activity on: March 23, 2014, 06:22:49 AM

huh what? care to give us more details?

Why on earth would you be refused because of debt-free?


Because there is no credit history (fear of the unknown?). Maybe they assume all adults without credit cards or regular bill payments declared bankruptcy or something (which is cleared after 7 years).
549  Economy / Economics / Re: List of Bitcoin Hostile (and friendly) Banks on: March 23, 2014, 06:19:18 AM
Canada

RBC closed my commercial bank account for having Bitcoin related activities.

TD Closed my PERSONAL bank account for bitcoin related activity

note: these are not mine.
550  Economy / Service Discussion / Re: TD Closed my PERSONAL bank account for bitcoin related activity on: March 23, 2014, 06:02:18 AM
List of Bitcoin Hostile (and friendly) Banks

I am with RBC. Since they are Bitcoin hostile, I do not mention it to them. I opened a checking account at Canadian Western Bank (which I use for Bitcoin (have not tried Interac e-transfers)).

RBC is starting to strike me as incompetent anyway. I only keep an account open because I have credit history with them; and I told CWB about my Bitcoin activity, so may need a fall-back. The local credit union (Servus) refused to open a checking account for me because I was debt-free for 3 years.

I now have a credit card because I learned you cannot rent a car without one. Bought a Bitcoin miner with it Smiley
551  Bitcoin / Legal / Re: Can you force the US government to accept a private key? on: March 23, 2014, 05:23:38 AM
You can mail somebody the key, but you can't force somebody to use it.
552  Bitcoin / Hardware / Re: [Guide] Dogie's Comprehensive ASICMiner Cube Setup on: March 23, 2014, 05:17:17 AM
I went through the mini blades to see how good each were...but I accidentaly put a blade in while the machine was running and the blade shut it off and now if I ever start the machine with that blade in, the red light doesn't go on and nothing happens. What does the red light stand for?  I wonder if I should change the capacitors or it's something else?  Huh
Thanks in advance!!!!!!!! Smiley
Also...does anyone else only get like 15 gh/s?  I can't seem to get anything near 30....

I don't know what the mini-blades look like, but check for short-circuits like bent pins or even the card installed backward (assuming a protection diode preventing reverse polarity).

The cube is supposed to shut-down if the fan fails could it be getting too hot?

If your controlling computer is really underpowered (talking 10 years old or more), that may cause reduced hashrates (but if that is the case, you CPU should be at 100% while hashing).
553  Bitcoin / Hardware / Re: Butterflylabs legit? on: March 22, 2014, 06:11:15 PM
I'm not into mining. But what I learned from my miner friends, that it is better to get a GPU rig and join a pool in terms of profitability. Pro-miners, please correct me if I am wrong.

I skipped the whole GPU mining thing.

Mining alt-coins may be more profitable, but it is also more risky. Script ASICs may displace GPU miners on many alt-coins before they pay-back the hardware.

With Bitcoin, you know you won't pay back the hardware (in BTC terms).
With the difficulty rising so much, it is hard to predict that (on the more efficient hardware) actually.
554  Bitcoin / Mining / Re: Nearly burned down my home due to mining farm (tips on how to stay safe ) on: March 22, 2014, 03:43:07 PM
 To tell you the truth im not doing it exactly to code lol !! Im actually just using industrial grade 120 volt outlets that the power supplies can directly plug into with out having to chop the cords and put a huge 240 volt plug on it !! Each power supply dont pull that much current, not nothing like a dryer would so you can get away with it. So basically the 120 volt outlets will just be supplied with 240 volts instead of 120. Just make sure you make it clear that its 240 volt plugs dont plug in a 120 volt fan or anything on accident lol ...  

They do make North-American 240V power connectors that are not much larger than the 120Volt connectors. Not sure what premium the power supply cables with a 240V plug would carry though (If you are an electrician, you would be able to just replace the plug).

Somebody up-thread was talking about 2 30 Amp PDUs on a 50Amp breaker. I suspect it would not be too hard to find a 20Amp breaker for one of the PDUs.
555  Bitcoin / Mining speculation / Re: people buying used miners on: March 22, 2014, 03:23:55 PM

The residual value from selling the BEs on Ebay is by far the most significant factor in their current value - so sell 'em while they're still worth something.


They may have some collector's value as well.
556  Bitcoin / Mining support / Re: orange sparks where psu connects to motherboard on: March 21, 2014, 10:37:08 PM

Can you help me with the math, tell me if you think I am right or wrong:

13 amps per pin x 2 pins x 12 volts = 312 watts.
...
Any thoughts?

Thanks for all the help so far!

Apparently for a 24pin connector. 18 gauge wire, the limit is 8.0 Amps.

On another wikipedia page, it is mentioned that the current rating given assumes a 30°C temperature rise (not sure where to find a citation). That means that if your machine is running at 40°C, your cables will be at 70°C. Depending on the cable, the wire insulation may melt at only 85°C. Edit: I think most chassis wiring is rated for 105°C. In any case, it is usually printed on the cable.

I worked out a possible fix: If you are able to find a way to disconnect the wires from the connector, you can put heat-shrink tubing over each wire (assuming you found any breaks). I was able to do that once while converting an old DELL supply to the ATX standard. Tried again years later and was not able to do it. IIRC, the pins use springs to stay in place.

The limit I have been using for ATX power: 5 amps per wire pair.
Edit: splitters are bad news. You want wire pairs going all the way back to the PSU.
557  Bitcoin / Bitcoin Discussion / Re: MtGox announce finding of 200,000 lost BTC! on: March 21, 2014, 07:15:25 AM
So did this hit any media newsstations yet or are they having to much fun talking about volatility and the sort

BBC is pretty high-profile.
558  Bitcoin / Bitcoin Discussion / Re: Should BBC (bbc.co.uk/coins-ex) have its own bitcoin and cryptocurrencies exchan on: March 21, 2014, 07:11:39 AM
Well, I believe the short answer is no. It would be like asking if the CBC/Canada Post should have its' own Bitcoin and cryptocurrencies exchange.

Canada Post dealing in Bitcoin? I can see it (they are a Money-Service Business). National Broadcaster? not so much.
559  Bitcoin / Bitcoin Discussion / Re: MtGox announce finding of 200,000 lost BTC! on: March 21, 2014, 06:34:49 AM
Better link:
New developments on the infamous Mt.Gox tragedy have been released.
200,000 Bitcoins have been discovered in a confirmed Mt.Gox offline wallet.

In response to this recent news Mark Karpeles (former Mt.Gox CEO) has explained, and I quote:
"MtGox had certain old-­format wallets which were used in the past and which, MtGox thought, no longer held any bitcoins"

So here's the rundown. Mark Karpeles's private stash of 200,000 BTC have been discovered and the lying SOB says that
he had "No Idea they were there" You can read the full article here: http://www.bbc.com/news/technology-26677291

-- Thoughts and Opinions guys? ---

I literally find this unbelievable.

Quote from: Falkvinge
According to an anonymous high-profile source, the first and original bitcoin scam was the online coin wallet Mybitcoin.com. People would deposit hundreds of thousands of coins there, as the currency was new and hundreds of thousands of coins weren’t yet worth a lot.

Then, on July 29, 2011, the site went blank, just like the Gox website did. People panicked and gradually accepted a catastrophic loss of funds.

On August 11, 14 days later, the site came back online and declared – just like Gox – that they “had been hacked”, had filed for bankruptcy protection, just like Gox, but “had managed to recover” 49% of the funds. People could fill out claim forms to recover these funds – 49% of their original balance. As this was enough time for most people to internalize the loss, they were happy again at the sudden windfall; things suddenly weren’t as bad as they had seemed. In the meantime, the anonymous person who ran mybitcoin.com disappeared with a huge amount of money, according to the source.

In other words, the scam cynically exploited people’s loss and grief to actually make them happy when they got something back. Most “hacks” of bitcoin sites since then have actually been copycat scams of mybitcoin.com, again according to this source. If – repeat, if Empty Gox is executing a copycat scam, we should expect the site to offer their clients a portion of the holdings back, a portion probably lower than 50% (just to drive the point home), and that offer should appear on or about March 11, 2014. Time will tell.
- falkvinge.net...Copycat Scam? heading

only 9 days late?
560  Economy / Speculation / Re: my intuition says: we're sitting on a rocket about to be ignited on: March 21, 2014, 05:58:34 AM
Behind our intuition is a computer with many Exaflops with highly sophisticated pattern recognition software. Our logic is driven by an emulation layer that is slower than a 1970s pocket calculator. You think our logic is superior just because you are more aware of it?
Point of order: Our brains don't exactly do Floating-point operations. Much like the Bitcoin network does not do a lot of Floating-point operations. Contrary to popular belief, the Bitcoin network does do some floating-point operations: mainly for stats.

But yes, our neurons are very good are recognizing patterns (and ignoring them). AFAIK, our brains are biased toward new information (which implies recognizing old information).
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