Slush stopped posting here some time ago. Until the beginning of this year newbies couldn't make posts in normal threads and the members that were posting were just asking the same questions over and over. It had got really bad so slush quit posting in this thread because he was just repeating himself over and over because no one would read past posts for answers. He added the webchat, a ticket system and Facebook for announcements. It sucks but this forum had got out of control. Slush is a highly intelligent person and to explain the same simple things over and over again when there is a knowledge base link on the pool page and plenty of pages in the forum they could review over became too overwhelming. Also, at the same time having clueless miners accusing him of crazy things because they don't understand how a score based pool works wasn't very productive for anyone. He was trying to write new pool software for the pool and create a Stand alone bitcoin wallet to help bring bitcoin to wider audience so he stopped posting here to create those things. You can still post with him in the Development and Technical threads, so he is still available and answers questions, just not the ones that he has answered 1,000's of times since 2011. He left this thread unlocked so we could communicate and help each other out.

Off the FB page 4 hours ago:

Dear miners,

 as you may have noticed, the upgrade of our web server backends has brought the following changes:

 - the minimum payout threshold has been lowered to 0.001 BTC

 - worker passwords are no more editable, our stratum servers simply accept any password.

understood still dont see how anyone would buy that 3.4 btc for .01 w gh/s improvement over s3+ .069 vs .070 when 2 s3+ is 1.16 and prob cheaper you can get 4 for over 1 btc cheaper and have same hash rate and I know it has an integrated psu so they wont have to buy 2 140 dollar psu's but they have to find a 16 amp power cord that fits hmmmmm... gonna be tuff 15 amp is what 12 gauge and thats already thicker then standard computer power cord bet it costs a bit and as standard outlets in the us are 15 amp rated I'm sure warranties will be void

yup i was looking online and it appears only 250 volt solutions for above 15 amp power cords

Shhhh your giving away my secret's 

no it is fine for me ....my account shows estimated reward of block we are currently mining stats page shows actual calculated reward for found blocks so im not sure but if no reward in stats page thats why my account unconfirmed not showing

the negative is just percentage of shares vs whats expected at current diff

Don't let this come across as "attacking" anyone:

You fail to realize the S4 COMES WITH A POWER SUPPLY BUILT IN.  YOU DO NOT HAVE TO BUY A PSU TO POWER THE THING.  We have to buy PSU's to power the 3 or 4 Antminer S3's to get about the same hashing power.  I prefer the S3+ at this point in time.  However, the S4 will probably have a greater resale value down the road if you choose to get out of mining at some point in time.

So, you save money not having to buy PSU.  Their PSU is GOLD rated and not PLATINUM rated like my Corsair AX860's powering my S3's.

Also, someone made a good point about the "watts consumed at the wall."  Approximately 1400 watts OR 1380 watts to be exact when you multiply the .69 watts x 2,000 GH/s.

TRY putting two of these on a 20 AMP circuit; EVEN WHEN YOU REPLACE THE STANDARD 15 AMP RECEPTACLE (OUTLET) WITH A 20 AMP OUTLET.  You would only be able to put ONE of these bad boys on that ONE 20 AMP OUTLET.  20 AMPS will drive 2400 WATTS.

Do the math:  1400 watts x 2 Bitmain Antminer S4's is 2800 WATTS.  The 12/2 wire will get too hot.  IF you have 14/2, YOUR HOUSE WILL BURN DOWN if the breaker doesn't trip!

SOLUTION:

RUN 10/3 wire [Rated at 30 AMPS] to a 30 AMP OUTLET [NEMA L-14-30-R (circular/4 prong)].  IT MUST BE NEMA L-14-30-R/CIRCULAR.  OTHERWISE, IT WILL NOT ALLOW THE NEXT THING I MENTION TO PLUG INTO IT.


http://www.homedepot.com/p/Pass-Seymour-30-Amp-Self-Grounding-Locking-Single-Outlet-Receptacle-Black-L1430RCCV3/100155901?N=5yc1vZc33aZ1z11vjb#specifications



THEN GET THE FOLLOWING EXTENSION CORD [3 ft. Generator 30 Amp 4-prong to 15-20 Amp (x2) Y-Adapter] TO PLUG INTO THE NEMA L-14-30-R OUTLET:

This extension cord splits INTO TWO 20 AMP PLUGS to plug in two Bitmain Antminer S4's.  It's only 3 feet but it gets the job done.  You can add more length with additional cords if needed.

http://www.homedepot.com/p/Rodale-3-ft-Generator-30-Amp-4-prong-to-15-20-Amp-x2-Y-Adapter-G30AM420AY/202669114?N=5yc1vZc4neZ1z11vjb




DON'T FORGET THE DOUBLE POLE 30 AMP BREAKER.

http://www.homedepot.com/s/double%2520pole%252030%2520amp%2520breaker?NCNI-5


Problem solved; IF YOU HAVE THE S4's in mind.  Now you have 30 AMP circuit [3600 watts] for the 2800 watts required for two S4's

David

^ good safety write-up. Even one of those is really pushing a 15amp circuit. Us elect code states 1440w/12amp for no more than 3 hours at a time. Breakers trip with heat, not the actual amps, and most breakers can take more amps than rated for. If your running 1440w/12amp or more watts for more than 3 hours at a time those wires can heat up enough to burn your house down. Newly built houses may be worse because "copper clad" wire(instead of solid copper) from China that some builders use these days get extremely hot at lower watts due to the wire being "cheap tin" coated with copper. Heads up, Look Sharp and Remember - Safety First.