Just ask for refund for my titan order and they say all sales are final... KNC become so lame company and tread customers as slaves ...

will 750W PSU work?

You can't tell from the outside.  It's the inside.  You have to know the specifications of that particular psu. Most higher end and high end psu will be single 12v rail.

Peeps....
I thought every miner knew....

You should only use SINGLE RAIL PSU'S
anything else you are wasting $ and taking huge risks imho

Multi-rail PSU's are SHIT,
I burnt out a couple last Generation before going to all Corsair single-rail
Even when the multi's "worked", they could not keep up with the rest
Even 5 year old-crappy used HP desktop PSU's were better. Just sayin'

depends what province.

Alberta should pay 5% GST only.

*edit* plus probably some kind of brokerage fee

Oh one last thing, I think the bitching about the IRS ruling is idiotic. I mean idiotic in the technical sense because it actually opens up some interesting options. If you have to pay capital gains on Bitcoin then the cost basis for the BTC would be the miner plus the electricity. If you mine less BTC than the USD equivalent of your cost basis you've taken a capital loss, which offsets any capital gains in other areas (such investments in more conventional equities such as stocks).  If you achieve positive ROI then you'd owe taxes at the capital gains rate which should be lower than your income tax rate. Or maybe you try another approach and deduct costs for your "hobby business", which under IRS rules means you can deduct costs up to the amount of revenue the hobby business generated, so you could probably deduct the cost of the miner as an unreimbursed business expense up to the USD-equivalent value of the bitcoins you mined.  Since you'd be getting a deduction against your bracket tax rate rather than the lower capital gains rate, this might work out, and the B2B terms of the sales contract from KNC actually reinforce this if questioned by the IRS - you clearly bought it under a B2B arrangement.  Alternately, it is reasonable to straight line depreciate mining hardware to 0 over a very short period, as they are essentially worthless within a year. One could think of this as an extremely expensive machine tool head that cannot be resharpened.

I have it running now (I guess I'm the first...)

It does: about 3.3 Th  and 1950W at the wall (the internal ASIC-monitor gives about 1440W...I have no idea where the difference is going to).
The chip is running on 475 Mhz (and can be set to 500 {not tried yet}).

There is one new thing on the controller-board: on plug-6 there is a small display-board which gives info about the IP-address and Hash-speed (very nice)... but this means as well that 5 boxes is the maximum.

The one PCE-power plug isn't running hot {the fan is indeed pressing air through the hole}, but the cables are 44 degrees Celsius.

I feel screwed when I know that KnC's "hash while you wait" means forfeiting "Neptune two-for-one"!

KnC announced "hash while you wait" on April 8, saying first batch customers will start their cloud mining from early June and the last customer will hash in their data center around the last week of June. Now this is close to the end of June, and finally the Plan B arrived.

On April 28, KnC announced that "KnCMiner, the most trusted brand in Bitcoin mining, announced today that it will give every current customer who has an outstanding order for a machine from its Neptune line’s first two batches a free Neptune from its upcoming “third batch” of Neptunes."  I felt happy when KnC announced this, because it shows KnC at least tries to bring more profits to the customers (although, in fact, two Neptune still cannot reach ROI). To my understanding, this is a bonus/gift/giveaway from KnC, it has nothing to do with the compensation due to delay of delivery.

In the email I receved from KnC two days ago, I am notified to choose either "hash while you wait" or "switch to Titan". There was no terms saying that by select any of the options, the "neptune two-for-one" plan will no longer be valid. I read their T&C (convert.kncminer.com/terms/), the two options they offered has nothing to do with the two-for-one plan, therefore I signed up "hash while you wait", happily waiting for the cloud mining next week, first Neptune by the end of June, and second one in August.

Then I read the forum discussion, and I know that KnC actually use "hash while you wait" in replace of "neptune two-for-one"! I feel totally cheated and pissed off! How come KnC breaks their public promises, and deprive my rights by just giving some vague and ambiguous terms and conditions?

I use the online calculator for some maths: https://bitcoinwisdom.com/bitcoin/calculator. (I set the difficulty increase 20%, power consumption 2.1kW, the rest parameters are with default values)

I spent 12999 USD on 3TH Neptune. With current difficulty, even if I start mining today, I can mine up to 6BTC before electricity fee exceeds the income. Suppose bitcoin price is 600USD, I can get back 3600 USD. There is still a gap of 9399USD!

If I receive a second neptune by Aug 31 (earliest estimated delivery date), then before electricity bill wins, I can mine up to 8.4 BTC together with the first neptune. This is about 5040USD in total. And the gap is still 7959USD!

"hash while you wait" has a max period of 45 days. Suppose I don't receive my neptune and therefore I use up all the cloud mining time, then I can get around 3.8BTC, equivalent to 2280USD. Of course, if KnC ships my first Neptune by end of June, then I only get 0.8-0.9 BTC while waiting...

So, even if I have both "hash while you wait" and "neptune 2-for-1", I can get maximum $(5040+2280)=$7320. The gap is $5679.

If I only have "hash while you wait" and one neptune, then revenue is $(3600+2280)=$5880, gap is $7119!

Now I can buy a 1TH miner for about 1500-1700 USD(e.g. http://www.lketc.com/goods/show-172.aspx  the dragon miner, one of the well-known mining rigs in China), and such mining rig is in stock and can be delivered in 2-3 days. With 12999 USD, I can buy up to 7-8 TH mining power! This is far more than 6TB that KnC can provide.

KnC said Neptune is to be delivered in Q1/Q2, and they make customers believe it refers to March/early April. Now it is the very end of Q2, and I feel disappointed.

KnC said the "hash while you wait" will be started in early June, and it is delayed, and I feel disappointed.

Now KnC will revoke their promises of give away a second Neptune, I am totally pissed!

unfortunately you are likely correct on the above....man knc had quite the rapid slide to the other side so to speak...$$$ talk we are irrelevant now off to do the BFL way...find 'more' newbies..hope they don't read bitcoin talk or google before they buy knc stuff

Searing
 

Ofc there is since the industry never stands still, only Intel (however their 14nm launches has been delayed) is currently moving over anything major to 14nm and they are usually 12-18 months ahead of the rest of the industry when it comes to production. Usually when foundries starts talking about a node you can be sure that their mass production is still 12 months+ away. Samsung will probably start their 14nm production next year, good luck getting access to their fabs for something like btc mining however. 20/16nm at TSMC/Globalfoundries will be as good as it's get for 2014/2015. The only opening I can see in that time frame iirc is that GF struck some kind of deal with Samsung on 14nm tech utilization, so they could be converting sooner rather than later. However converting a fab is not something that you do overnight exactly.

Also doesn't change the fact that for every new process node the costs have increased exponentially for RND while the gains in power reduction/performance increases have been decreasing. It used to be that you should jump on a new process node asap since you could offer a product with better performance metrics at a lower price, these days however it makes more sense to wait until the new tech has matured unless performance/density are your only concerns.

The whole argument has been about why you should go 20nm instead of 28nm when the NRE costs are higher while the cost  for performance x with efficiency y is the same on both processes. Currently it costs more to develop for 20nm than 28 while you gain almost nothing in terms of performance/$, this will change with time however when the process matures and price comes down for manufacturing.

However if you like KNC simply make someone else pay for your NRE costs it made a lot more sense to jump directly to 20 vs 28nm. They could have offered the same kind of performance at the same price with a new better 28nm design and delivered it sooner, they wouldn't have filled up their orders as easily however since "OMG 20NM SO GUD MUST HAVE" mentality. In the long term KNC will be the winners since costs of 20nm wafers will go down faster than the cost of 28nm so they will be able to fill their datorhall(s) with higher density chips paying less/GH, and we paid for it pretty much.

Canada =/= USA

Was not TigerDirect accepting since January ?

Didn't know they changed the design. Got a source for that?

I have only heard that 20nm is not cost effective as you can see here:

but you get the equiv of a Neptune in 1 week

Currently, only ASICs for SHA256 and Scrypt are officially being sold in the public markets. An SHA256 ASIC can be used to mine any SHA256-based coin, while a Scrypt ASIC can be used to mine any Scrypt-based coin. Why do you need a list?

Actually:
1-15 = first half of June
16-30 = second half of June

When you say early June you mean beginning of June. 15th of June is definitely not beginning of June as it is already mid-June