^looks great! I have a few of those in my 14-unit cluster, but primarily use DPS-800GB supplies whenever i can get them to work properly (about 50/50 from the place i buy them at $5/each)

I generally only load 1 Ant per artesyn supply since more causes a horrible fan scream, particularly near full load. 213V circuits reduced the noise slightly i think, and overall improcve most PSU efficiency by 2-5%

How could I implement this across 14 different units at once?  its a pain to open up 14 SSH modules and input these steps one at a time for each.

one thing that ive rarely seen come up in solar power conversations is the fact that you are capturing a huge fraction of the solar energy onto the black panel, rather then reflecting it back into the air/space like if it hit water or hit green foliage. Solar Panels effectively act like blacktop pavement in that regard.

MO, the future is wave power and nuclear.

The best part is that yesterday i got an email from havelock to inform me that a purchase order at 0.0056 had been filled after sitting and waiting for at least 2 weeks

I think we are slowing down. the last jump was fed mostly by the huge output of 1TH machines coming from china based on the A1 chip, as well as the new spondoolies machine. Asicminer is right around the corner with its new chip too.

we might see another jump close to 20% as all these flood the market, but after that we should continue the trend of 16% and lowering per jump. My estimate is that by september we will have jumps averaging around 10-14%

I previously griped a dozen times because the machine would always orrupt SD cards and actually managed to turn two cards un-usable. (even when trying to format under a linux OS)

I upgraded to a Class 10, 16GB card and no more issues. I can unplug the machine hot, reboot it safely, no issues for a month or two now.  Definitely an issue with using low-end SD cards.

Think you meant 8 months, 1 week? (at least since the post on august)

either way, its disgusting. BFL-Josh seems to have even stopped bothering to show up and berate forum users

shipping cost wont change. If $800 to ship a $4000 device now seems high, why would you want to pay $800 to ship a ~$2000 device in 2 months time?

when did you ship it back? its saturday evening in china right now, so they likely wont do anything until monday AM

Its interesting to know that 100 units sold out in under an hour, but there has been 103 units for sale for about 8+ hours now.  I really beleive that VMC 'sold' 100+ units to AMCT, which then decided to allow VMC to sell them instead since the first batch sold out so 'quickly'.

game of cards right now, none of which includes a photo

hard to say. a custom design, even with another chip, is a profitable route to go, but likely less than half as much as a custom chip.

lack of proof or photos is my concern though.

these babies are gonna slide right into my desktop - what do you think, 3 in a mid-sized ATX case? 

^im writing on my experienc ein ordering (and receiving) more than 18 antminers - of which 14 are run in my own farm

even before it was common to see the status switch to expired, particularly at times when a block wasnt solved for a while, so that in the hour from payment anything from 0-2 blocks were solved and the status became 'expired'. They are very fast, give them a few days of peace and they will give you a tracking number

^moreover, if a few hundred were actually sold, it might give ken enough money to run off laughing to warmer climates.

no photo, no custom chip (FH-1 is not the ACTM 28nm chip), no clue how the hardware looks or works.

oh, and it doesnt bother to ship with any form of cooling - I dont have any immediate issues with this, but its unprofessional and potentially leaves the chip surface open to damage by poor user installation. (oh, and no warrenty whatsoever - I would hate to be the guy that gets a unit that was 'tested' but when VMC removed the test heatsink left damage).

the lack of warranty on an item that clearly requires some advanced assembly (polishing and mounting a heatsink) is appalling IMO. no other industry would ever try that stunt.

+1. You dont go from 'working on development of our own chip' to using them in the fast-hash-one overnight. Clearly a different chip altogether, likely a coincraft A1 chip

Im confused for a number of reasons:
1) Is it to be cooled exclusinvely by a (large, not-included) liquid cooling solution like the $150 H80i? or are there multiple fans added or required in addition
2) the photo shows nothing. obviously not a heatsink, maybe a fancy metal base that will be the facedown the entire time its in operation
3) no chip details. its clear that a custom 28nm chip is not ready, but no information was given about the chip in this unit
4) you can get 1TH/1KW devices for not much more than this 512GH/400W device that requires a host computer
5) Warranty:  Quality Controlled Pre-shipping tested against DOA. Experimental No Warranty
6) look at the photo. whatever that copper/brass thing is, it either is backed directly by a solid black panel, or defies physics (hint: look at letters like 'o' and 'a'). It is obviously a render and not a photograph. Its a nice photoshop/CAD model though

If its true this is a massive step forwards. but right now there is no real information or photos about the board, chip, and other components used. It is in-stock vaporware compared to pre-order vaporware, so im watching closely for the first customer to actually receive one AND take photos of it

read the thread. its obvious that the orders almost always show expired, and can take up to 24hrs for bitmain's system or manual method to mark as paid. Ive never seen it happen for less than ~20 confirmations, usually many more.

same for shipping. it often takes 2 or even 3 business days (please remember to measure time in business days AND keep the timezone of china in mind) before its marked shipped, and usually is not marked until UPS is already in control of the package

Bitmain is fast - stop freaking out because the website ticket system has a lag

I have two solutions:
1) I would be interested in the coupons. I would request you to place an order shipped to my address and would place the cost of the unit into escrow with another member until shipment is confirmed by bitmain, then esccrow would release to you (before delivery)
2) I would be willing to actr as the escrow agent for somebody else following the above method.

with bitmain's speed, the escrow would only be held for 2-3 days at the most

watts AT THE WALL

If the PSU is a 1000W 80+ Bronze unit then at a 900W load (90%) it would likely have an efficiency of ~82%. This would mean 1097W at the wall.

people need to stop confusing the power draw of the components against the power draw at the wall, which is significantly depandent on the PSU quality

sometimes server supplies will switch off for a few minutes if overloaded before they switch back on automatically. I had one that would switch off for 5-10 minutes every couple hours at the warm point of the afternoon