Yes it is 4 dies per "chip".  96 double nonce cores per die or 768 hashes per clock.

This is also clearly visible on the PCB photo.



The big brown square in the middle is the substrate which forms the base of the entire chip package.  The 4 squares on the substrate are the 4 dies.  Just about everything else on the green PCB is what is required to funnel that much power into that small chip.  I have to give them credit it is a pretty clean design.  There is a 6 pin PCIe power connector at each end of the board currently not populated in this photo.  Each half of the board essentially supplies power for two of the cores.  The heat sink mounting holes are standard (looks like Intel hole spacing) so any off the shelf cooling component could be used without any custom work needed.


As pointed out IF it is ~400 GH/s at 0.74V well that is incredibly low voltage.  0.85V would be 15% higher voltage, pushing it to 0.90V would be 22% higher.  Clock rate should scale at least linearly with voltage increase (probably super linearly) albeit at lower efficiency (J/GH).  I am not making a prediction on how much they can push it.  Remember power usage in semiconductors increases by the square of the voltage increase and the chip already uses a lot of power in a small package.  At some point you run into limits on how much power the PCB can deliver and how much power (heat) the cooling system can remove.

Still as tacotime pointed out the chip at 0.74V is a good sign.  If they were struggling to get 400 GH/s at 0.90V that would be a bad sign as they would already be pushing the limits of what the chip can handle.

Sadly true but after Christmas is a different story and that still gives them a couple days.  None of this excuses HashFast blatant lying on shipping timelines.  I am now convinced they knew from day 1 they had no chance of shipping before late late late December and simply lied to secure sales at a higher price point.  Hashfast would still have gotten sales but not at >$10 per GH/s if they were honest and gave a realistic shipping timeframe of mid to late Dec for Batch 1.   They lied in order to profit from their customers victims.  Pure and simple.

If the charge is disputed your PayPal balance will go negative.  PayPal will pull the funds back from your bank account, or send you to collections.  Even if they don't your account will be permanently suspended until you repay the negative balance.

Yeah ask Full Tilt Poker how well that strategy worked.

getnewaddress will fail if the keypool (default 100 keys) is exhausted when you call it.  The keypool can only be refilled when the wallet is unlocked.  You can raise the size of the keypool if you anticipate this being a problem.

You sure you know his real name, address, etc?  Or do you just know the name and address on a hacked PayPal account?

Hopefully you get lucky but trading with unknown/untrusted people using PayPal is stupid.  If you don't get robbed this time it is only a matter of time.

The "new blocks" in cgminer don't mean you are finding a new block it means someone, somewhere on the network solved a block and cgminer is changing to build off that block.

Are you sure you have the hashing power to solo mine.

What is your expected time to solve a block?  If you don't know or don't know how to compute it you shouldn't be solo mining.

Why would you need miners?  Hint you wouldn't.
Why would you need full nodes?  Hint you wouldn't.
Why would you need a needlessly complex and costly peer to peer network?  Hint you wouldn't.

The blockchain, mining, peer validation, and all the complexity and cost that comes with it is the COST of having a decentralized network.  There is no point to a centralized, decentralized network.

If you want a centralized network a single computer w/ no mining could process 100x the transaction volume of the entire Bitcoin network.   Submit your txs to the ledger, get a confirmation.  Tada.  Nothing more is needed.

Same way you move any other Bitcoin.  You make a transaction sending x BTC to y address.  Any exchange will provide you a deposit address you use your wallet to send coins there.

There were a bunch of clueless idiots at $266 that knew absolutely nothing about Bitcoin except it goes up and it makes you rich.  The idea that it was some group of intellectual elites is kinda funny.

Lets destroy this thing by buying it up at insanely marked up prices and make the existing holders the new wealthy elite.

Doesn't really sound like the best plan does it?

Well it looks like Cointerra will miss.  Hashfast is unknown.  Not sure how much of KNC Nov run is left but I would guess it is mostly complete.  My guestimate was ~2 PH/s and we saw a nice bump from 5 PH/s to > 7 PH/s between 5 DEC and today.   My assumption is most of that is KNC "Nov run".  If Hashfast misses we probably are going to come in under 1.8 PH by end of year.

Nobody else appears to be shipping in the volume necessary to move the needle.  I mean at 7 PH/s even dropping a PH/s on the network is barely a 15% increase in diff and that would need to be a pretty fast rollout to happen in one adjustment.

I think 1.4 to 1.8 billion difficulty by end of year is more likely.  Beyond that into 2014 it becomes harder to guess.  January & February is likely going to be brutal between HashFast (batch 1, 2, MPP and upgrades), Cointerra (batch 1 & 2), plus the maybe BFL Monarch near the end of February.  If BFL misses I think difficulty doubling is likely.  If BFL ships in volume it probably will be more like triple.  Beyond that I think the adjustments are going to slow down but really going more than 2 months out is just a guess anyways.
  

Yes it means it takes less volume to move the price up.  So yes it is bullish as long as the trend holds and when it doesn't hold there really isn't an conviction in that movement so those gains will evaporate in the blink of an eye as the price falls until it reaches support (which is usually where there was sustained upward movement on higher volume).

So easy come, easy go.

Also keep an eye on future volume uptrends often will wimper out on fading volume so if the price keeps moving up and the volume keeps moving down that is generally an indicator of a reversal.  The reverse is true in a crash, near the bottom of a crash volume will often explode to the upside.  This is the capitulation when the weak hands who held all the way down throw in the towel.  An outsized volume followed by falling volume and a reverse in direction is a good indicator the crash is over.

Remember these are just signs.  Things to look for and say "hmm" they aren't magic and they aren't always right but in mass humans are often predictable.  Rapid price gains on low volume make me doubt the underlying trend in the short term and I will keep an eye on it for other indicators.

Some may but excluding US players requires identifying your customers.  Think that is going to be popular with bitcoin players.   Also being in a gambling friendly country is not a magic bullet if you let US players play, just ask Full Tilt Poker (google poker black friday).

Is the price going up?  Probably but higher volume shows higher conviction in the movement.  If it was moving up under high volume I would be more suprised with it flash tanking back to $600 or something like that.   If it moves up rapidly on low volume it really shows no conviction in the price movement.  It means a few trades and potentially a wide spread it all it takes to move the price up.  It doesn't mean a massive number of players are "betting" massive sums on their conviction that the trend is sustainable. 

Easy up = (potentially) easy down.

For the record before I get flamed I am not saying dump it all, it is going to crash, you should short it, or some magical line told me we are going to $671.38 within 48 hours.   I don't try to day trade the market.  Just pointing out that a lack of volume indicates a lack of conviction, a lack of support or base and like before if it reverses it is going to free fall.

Take a look at the volume on the red candles compared to the reversal and uptrend.  I am not saying it won't go up further, it certain may but for me an increase in the green candle volume would improve my confidence that the leg up is sustainable. Show me a run of green candles with volume spiking to where the red candles and it will remove all my doubts.

A correction on outlet (or technically branch circuit) limits.

In the US the nominal voltage is actually 120V (or 240V) not 110V however the NEC for fire safety derates continual loads (like a miner running 24/7) to 80% of circuit peak capacity.

So for continual loads the usable wattage by outlet type:
NEMA 5-15 120V 15A 120*15*0.8 = 1440W "normal outlet"
NEMA 5-20 120V 20A 120*20*0.8 = 1920W
NEMA 6-15 240V 15A 240*15*0.8 = 2880W
NEMA 6-20 240V 15A 240*20*0.8 = 3840W
NEMA 6-30 240V 15A 240*30*0.8 = 5760W

Yeah I have a pair of NEMA L6-30R outlets I installed myself but then again I am kinda crazy.   Unless you have strong confidence in your electrical skill I would recommend having a qualified electrician do the work.   It isn't rocket science but electricity can kill ... the very first time.  

Still nothing like having 11.5 KW of juice for miners.  The power cable on the 30A PDU (high current power strip) is about 1/2" thick.  You could probably secure a boat to a dock with it.    The "L" just means locking connectors, same power rating but once you insert the plug you rotate it to lock it into place.  This makes it a little safer when dealing with high current, no chance of creating an arc flash by tripping over the cord and ripping it out of the socket while under load.

This is why you shouldn't reuse addresses.  The system tries to protect users from themselves.  The coin selecting algorithm will attempt to find inputs which cover the tx.  So my wallet could have 1,000 BTC but the inputs used to pay you 9.5 BTC may only have 9.7 BTC in value with the 0.2 BTC excess change going to a new address.  There is nothing which indicates the true value of the wallet.

Reusing addresses and consolidating balances into single large addresses works against the system as designed.

Had I known my quote would continually be used in the graphic for these types of threads I would have asked the person who turned it into a graphic (love the sun image BTW) to let me fix the horrible phrasing before it gained a life of its own.

The system is continually rebalancing.  If it becomes too "hard" some miners will quit (those with the highest cost and least efficient gear), when they do difficulty will fall and remaining miners will earn more.  Of course that lower difficulty will bring in new miners who will drive it back up.

There can never be a scenario where nobody mines because it is too hard.  If less people (or hashpower) is mining then difficulty will get easier not harder.