10000 khash? That's 10 mhash, so just about anything can do that, couple of good CPUs, an old nvidia card, whatever.

If you meant 10000mhash or 10 ghash, that cannot be done easily. Assume you grab a bunch of cheap 5870s off eBay for $150 a pop that can each do 400mhash, you would need 25. That's already 3750 dollars. Assuming you can get 5 motherboards with 5 pcie slots, at 85 bucks a pop that's another 425. To power 5 5870s you need a 1250w PSU which is gonna be at least 200 bucks for a decent one, and you're already past 5000 dollars without any casing cables fans etc.

Thats probably one of the more efficient builds and it won't work, not to mention being a bad investment right now.

There is a DIY ASIC project getting started, you could build a 10 ghash miner for about $500 with some know how. You might want to look into that.

Avalon 66 GH/sec miners hold 240 chips IIRC. So that means that each board in their miners hold 80 chips, and each chip runs 275MH/sec. If you bought 10 chips you should reasonably expect to have a 2.75GH/sec miner. Not bad for $80 or so?

DIY means "Do It Yourself". Pre-assembled means "Someone else do it". This is a DIY thread.


On another note, I notice people buying 500 - 2000 chips, are you really planning to connect 2000 chips yourself? I have a half idea to DIY as well, but the task of actually soldering and whatever else will be involved with this number of tiny chips is daunting.

EDIT: Kudos to OP for both this and helping the other crew keep in stock of chips.

just in case you run into the same problem again, you can use fairly cheap point to point antennae to share your home internet (even across tens of kilometers).

I would have liked to get warehouse space once upon a time as well, but sadly it is quite a bit more difficult than it should be

I'm using an HDMI cable directly to/from my monitor.

I have a weirdly similar problem, except with a new Sapphire 7970. I put 2 8pin PCI-E (yes it seems to require 2 8pin...) and when I boot up I get no signal. THe funny thing is my computer still boots (my mouse makes a sound when windows loads), so apparently it's not a problem that halts the boot, just refuses to display.

Running the card as a secondary card, and it shows up in hardware and mines just fine. Truly bizarre, never seen anything like this before. So maybe it is just some funky new 7970 stuff.

On another note I'd say that price and hashrate have shown themselves to be loosely linked at best. And it would be best for people to divorce the notion of the two being tied together either way.

I sometimes wonder if a 51% situation would even effect price.

Not a terribly helpful answer. I'm not sure I 100% understand it, but I'll give you what I think I know.

Pools assign work units, similar to the current block being worked on, however at difficulty 1 (or higher depending on your hashing power), which are called shares. The idea is that you solve your mini-block, and submit it back to the pool, to show your proof of work, out of every X shares submitted, one will also solve the "real" block being worked on (by chance).

So you are in essence solving an easier problem, that can potentially solve a more difficult one, and everyone doing this over and over and over eventually do find a block.

A window of a month doesn't make sense as there is actual variation day to day, week to week, at significant amounts. Unfortunately it's similar to the uncertainty principle, the tighter your make your observation window to get a current sense of hashrate, the more variance you will end up with, the broader you make your window the more you screen out actual changes into a blur of average.

Excepting for times of exceptional anamolies, I've found the 5 day rolling window seems to provide the best of both worlds. The 3 day average on sipa is good too.

0 feedback = 0 bids imho. Unless it's for like a candy bar or something.

Since no one has any idea how many units are ordered through BFL, no one can say what the difficulty will be when they ship. How many ounces of unicorn blood does it take to fill a faeries bladder? I dunno.

Difficulty scales linearly with Hashrate, if you wish to figure that out, or guess at it. 1200 x 87GH units from Avalon (give or take) will at ~105TH to the existing ~67TH. That will put us roughly into 24Mil difficulty range.

If and when BFL ships it is anybodies guess, but as you can see fairly simply, 150TH will add about 20Mil difficulty, so anywhere between 25mil and 100mil by August seems plausible.

MatTheCat is a perfect example of an answer to your question antimattercrusader.

You start with a flawed premise, and respond to it with sound arguments, which are then systematically nit-picked at and baited for continued "discussion" as though the original point was somehow valid.

It both wastes time, and partially validates invalid thinking as though it were something to be read by the less informed, or undecided.

Not one of his statements is worth refutation, so why waste the time and breath to do so? I don't necessarily thinking banning the OP is necessary, as simply letting the thread die of lack of attention would be fine, but I certainly don't think that any response greater than the emotionally satisfying ones like "You're a retard." are warranted either.

Most people probably did not buy in at that time, which is why it's a big shocker to people.

Those who know the history are probably not surprised, those who burned their assets in the fire of bitcoin craze probably are.

This reminds me greatly of July 2011, almost to a tee. The only difference is it's so much more massive that I missed the boat on raking in some arbitrage (I didn't expect a jump to > $250). But just as then, huge run up in relatively short period of time, for no reason, while everyone jumping for joy. Then big drop, then medium recovery, then big drop, small recovery, medium drop, etc. until eventually bitcoin was almost worthless. Hopefully the fundamentals are there to support bitcoin at a reasonable value this time, otherwise it might forever solidify bitcoin as just a pump and dump scheme for those with the capital and know how.

Awesome to see things like this going on in the bitcoin world. I was recently in Costa Rica, though I only zoomed through San Isidro on the way to Dominical. The place is quite lovely, and if it's up in the hills it is often cooler, which I for one quite prefer. The people I met were all very friendly and kind, though I don't know if that was just catering to the tourist gringos. Driving can be an interesting adventure, not for the easily rattled.

I'm curious, I recall electricity can be a bit of an issue in some places, is the current pretty steady there, and if say a bitcoiner were to go live there, would there be capacity to do their business?

Costa Rica property seems to be one of the hot new things these days. Good to see it making it into bitcoin, good on you

The mods have been having a field day moving threads so if it should move it probably will.

As regards a batch 3 order, well only time will tell. Too many unknowns to really make any kind of informed guess.

The avalons are woefully power inefficient, but the upshot is that even so they are delightfully efficient comparatively and can be run into mega difficulties . My bet is that in terms of BTC they will return their cost, perhaps in a year, however if BTC return the same fiat value in that time is anyone's guess. BTC could be worth nothing or enough to buy a house, we all wait eagerly to find out

Why is public opinion something to be afraid of in a matter unrelated to public opinion?

Someone named Dalkvore or whatever is offering such a service, and while he has a good rep, I for one wouldn't let such a device out of my hands until profit motive for theft was far far lower. Alternatively you could always just pay for space at a datacenter (their size ensures they dont care about the piddling amounts avalons generate).

Doesn't matter if you work for any of those three, as long as you are not working as a Purchaser, and you are not using agency money to purchase products.

The point of fpga is low power cost for extended use when difficulty rises. 85w for 1.6gh vs about 700w for GPU. Just as I would not recommend making a gpu rig I would not recommend investing in a fpga rig right now. Difficulty is set to double and then triple in the next few months. With a long ROI neither is particularly attractive

While I think it is fair to use the assumption of all batch 2 Asics coming online all at once on whatever date (as one will have no way of knowing where in the queue you will receive your unit) for simulation, it is not realistic to anticipate all Avalon batch 3 units going online 2 weeks aftere shipping.

Experience shows that there are still people waiting on batch 1 avalons. While we can assume they have learned from batch 1, I still anticipate continued delays amongst 600 large boxes shipped from china internationally.

Good to try to put a little water on tthe fire but I don't think anyone willing to drop 20000 on an Avalon will listen to reason at this point