Even it had been delivered on time, it would have been a bit underwhelming.
My KNC Jupiter cost $1362 more but it arrived in early october (2-3 weeks before HF expected shipping date) and runs at 550 GH/s at 575w (roughly the same power efficiency but much faster).

So hashfast would have been competitive if shipped on time, but still not that much better than the rest.

Your BJ is fine. They don't hit 400 GH/s unless they are overclocked. 3.11 is giving you the real hashrate. What you saw before 3.11 included hashing errors that aren't counted by the mining pools.

Overclocking is the ONLY way you can even hit their promised performance!

If you clock to 610, cgminer will show it runnign at about 450 GH/s. But we know now this is not the REAL hashrate. Eligius will show it running at 425 GH/s. Why? Because cgminer is currently incorrectly counting bad shares (unless you upgrade to 3.11).

Upgrade cgminer to 3.11 and you'll see the hashrate drop to 425, the REAL HASHRATE.

Now, put the settings back to stock (clock 550), cgminer will show 420 GH/s but the real hashrate will be <395 GH/s. Not even the 400 GH/s we were promised.

Once again HashFast has over-promised and under-delivered.

btw, the BJs are not very overclockable. You probably won't be able to go higher than 615 clock without crashes every 30 seconds. I was hoping the BJs would be overclockable to at least 500 GH/s but now it looks like not even 450 GH/s is possible and overclocking is necessary just to hit 400 GH/s.

You have to connect to you router and open up a port to forward to the raspberry pi. Every router is different but there should an option for it somewhere. On my belkin router it's called "virtual servers".

You need to set a static IP on your raspberry pi. I haven't figured out how to do this yet. The ssh port is port 22. The web management port is 80.

Does anyone know how to set up minepeon so it uses a static IP address. I don't want to use DHCP. I tried using wicd-curses to reconfigure it but it didn't seem to work. I'm familiar with setting up a static IP on my raspbian pis but not on arch linux.

This. I have 5 of them that I've been using to run my other miners (BFL and BitBurners) and they are notoriously unreliable. Every once in a while the SD cards will die necessitating a rebuild of the whole image. And the USB ports are the worst. Even with a powered hub they aren't able to drive my bitburners anymore and I ended up having to buy a tiny computer and putting Linux on it.

Default hashrate (clock 550) is 419 GH/s with power consunmption of 410 watts.

With clock at 600, power comsumption is about 448 watts. Harshrate is hard to measure because the BJ will occasionally reboot and screw up the cgminer stats. My estimate is it is somewhere between 430 and 450 GH/s.

I haven't gotten the BJ to work at 650 or 700 clock yet. It reboots too frequently.

I would hodl.

I don't think you understand. Why would the indiviudal nodes have less hashrate? The total hashrate would still be the same. The only way that would happen would be if some shut off their miners.

Yeah, this is kind of ridiculous.

But don't worry. I'm going to pick up my BJ tonight from FedEx (HashFast shipped it to the wrong address), and once I do, I'm going to measure the power consumption right away at a variety of speeds and I'll post it here.

Actually, like BFL, if the price of BTC hadn't risen x10 HashFast would be out of business right now.

I bet that is what is going on for me too.

But it seems like HashFast might have shipped it to the wrong address!! Looking at my original invoice I see that I had different billing and shipping addresses. But looking at a later invoice it seems like they are shipping to my billing address!! I'm pretty angry right now. I don't even know where the BJ is going as I don't even have a tracking number!

This is exactly my hashing story too!

I got a call from HashFast yesterday saying that my BJ was shipped out by FedEx the day before (Wednesday night).

They said they'd send me the tracking number by e-mail shortly.

It's now a day later and no tracking number, and no BJ. 

I have no idea what is going on. Has anyone else had this happen?

Where did you hear this?? Did they e-mail you?

This seems strange as I have an earlier order number than you but I haven't heard anything yet.

I'm expecting a BJ to just show up at my door, hopefully today when I get home!

Difficulty can not get anywhere near that high unless one of a two things happen:

1) The price of bitcoin goes up several times to $3,000 or more.
2) Super efficient miners appear. We are already at 20nm (coming soon from KNC) and so I doubt we'll see anything better than 0.5w/GH/s in 2014.
3) Electricity somehow becomes super cheap worldwide.

Otherwise, if 25TH/s was required with current BTC price and miner efficiency you would spend more money on electricity than you'd get back in BTC. Yes, there are people out there who have "free" electricity but there is nowhere near enough to support a mining network a couple of orders of magnitude larger than there is now.

This is actually really simple.

First, let's assume BTC is $1000/btc at that time. It reality it could be way higher or way lower, but I think that's a reasonable guess for now.
 
Assume the most efficient miner available is 0.5w/GH/s and average electricity rate is $0.15/kwh.

That means spending $1000/month in electricity will get you 9,250 GH/s of hashing power.

For 9,250 GH/s of hashing power to make you 1 btc/month, difficulty would have to be at about 140 billion.

It reality miners need to make money to cover the cost of their hardware, so I doubt difficulty will go much higher than 100 billion if btc is at $1000, but around 100 billion is a good guess.

EDIT: so the answer is really less than 9250 GH/s.

It CAN'T be much more than this because the electricity cost to run the miners would be more than the miners would make assuming BTC is still around $1000/btc.

We aren't going to see miners more efficient than 0.5 w/GH/s either and even that is pushing it. That part you can be sure of.

It's a very bad idea, but the problem of unused/lost coins IS a big problem. This just isn't a valid solution.


As someone said before, the price is a function of supply and demand. If the supply is unknown, price will be unknown and potentially volatile.

And as time goes on, more and more coins will be in that "unknown" state where we don't know if they are lost or just beings saved.

The more coins that are like that, the more uncertain what the real supply of bitcoin is.

And remember, eventually ALL bitcoins will be lost!

I can just see the meeting of Amazon execs now...


"So, we've been working on retooling our website to accept bitcoins as a payment method for a while now. It should be ready soon. How should we let the public know about this? A press release? A big banner on our website? A series of TV commercials? No, let's just tell to some random asshole who e-mailed our support center and let me spread the word to everyone else. Yeah, that's what we'll do."

This was actually misquoted on the radio this morning too.

The DJ said that the richest 85 people own 50% of the worlds wealth. That didn't seem right to him, or to me. Happy to know that he was mistaken.