Topic: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH - page 304. (Read 527809 times)

yeah, good point-I don't have PDU(s), just power strips with just one machine, so this kind of escaped me.

actually if the pdu has a power on switch they can all be fired up together

The Bitmain rule is to start the hashboards first or at the same time.
With three 1000 watt psu's you turn on two hash boards on each s7 then turn on both controllers and one hashboard on each s7.
I am doing this right now, works like a charm, multiple starts.
The thing I noticed is that is doesn't even matter if I start the controllers first, wait five seconds, then start the hash boards it still works just fine.

One small advantage to a single PSU is the "sequencing upon startup" is resolved. Two PSU's require some additional fiddling, some of the time, which wouldn't exist with a single PSU.

How much that's worth is individual choice.

if you do that, you would not be able to follow the bitmain's rule of powering boards first and controller later when using more than one PSU/machine.
You are bound to start at least some boards at the same time as controller while other board(s) in the same machine will be powered by another PSU.
Maybe it is still OK, i don't know.

I started with GPU's back in the day and had corsair RM1000 psu's
Went to
gridseed
gridseed blade
s3
s3+
s5
Then flipped to 240v
Then to the datacenter.
Now dumped s5's at the datacenter and used the cash  for s7's.
Waiting on s7's
So now I have PILES of RM1000 corsairs.
So I am going to use three Rm1000 to power two s7's
Rm1000 are gold psu's

Thats good brother now mark it with some pen before they misplace it

Right, but thats still twice the cost of buying 2 smaller PSU. I was just pointing out that you can get to the same result by buying 2 smaller PSU instead of one big PSU that is worth 5 smaller PSU.

You're paying premium for 93%~ eff instead of 91%~ efficiency and for having the watt support in one unit instead of two.

For instance for under 300$ you could get 2 EVGA GS 1050W which would give you 91.0%+ Efficiency vs the AX1500i's 92.2% for 400$~ And it goes down to 200$ if you're okay with the efficiency dropping to 90% by getting 2 750W PSU, or 240$ for 2 850W PSU.


Same answer as above, you'll have more stable voltage and less psu strain and much better headroom if you go for 2x PSU and for cheaper. You could go with 2 smaller Plat PSU if you wanted to get better efficiency than the AX1500i and it would still be cheaper and you would still have better headroom.

I have many many many many many many many psu's  and I should use many a few more times.

s-7 runs great with the evga 1600 p2


http://www.amazon.com/EVGA-SuperNOVA-PLATINUM-Crossfire-220-P2-1600-X1/dp/B00NJG61JQ/ref=sr_1_1?ie=UTF8&qid=1444852172&sr=8-1&keywords=evga+1600+p2

I am running on it as I type.

but it is costly psu.

the s-7 run goods on the evga 1300g2

 http://www.amazon.com/EVGA-SuperNOVA-Crossfire-Warranty-120-G2-1300-XR/dp/B00COIZTZM/ref=sr_1_1?ie=UTF8&qid=1444852277&sr=8-1&keywords=evga+1300+g2

when I was running 2 s-7's I used it along with the  1600 watt platinum.

should you use the cheaper one? well I could argue no go for the plat.

http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=391

this one is the price for two 1000 watts...evga or corsair  and get 9/9 from johny

Thats a decent PSU but the price is out of this world. You can do better with 2x750-1050 EVGA P/G2/GS From one third the price to half the price for near or same efficiency depending on whether you get G or P.

The G2/GS are so popular because they push nearly Platinum efficiency and the price is right.

Could power the S7 for 150$ no problem with 10 or 7 years warranty.

http://www.guru3d.com/articles-pages/corsair-ax1500i-psu-review,9.html

10 PCI-E output, 10 PCI-E cables, up to 125 amp. 7 year warranty-most important
i think ,sustained over a longer life than the whole life of one S7 

I have many years of good experience with these http://www.guru3d.com/articles-pages/corsair-ax1200i-psu-review,9.html 

Anyone else awaiting more than two weeks to have tickets replied?
http://prntscr.com/8rai7v

You forgot many other things. You forgot how bitmain jacked the price up 20% instantly after sp stopped selling to public, and even admitted it, S5 boards temperature difference, careless about their customers, horrible customer service, weeks/months to reply (useless replies), s4 on fire and many many other things.
This is only gonna get worse, as I have said many times before. Yet everyone will keep lining up to be slapped by bitmain once more.
Not a week goes by I don't wish and hope for more competition in this market.

What speed were you seeing at 675?

I'm not meaning to be rude if that is how it comes out.  I just am being realistic.   They were asked about compensation and they released a plan.

It is not what many wanted.  But it was 100 percent a business plan.  I feel it is being over optimistic to wait on coupons that I feel most likely are not coming.   

No, they have not "said" they will give coupons out.  Does this mean they will not give them out because they have not said it?  No.

For instance, I told my client 15% less on my service for delaying them a week.  They accepted...  I also gave them a 15% discount on the next week they scheduled from me after completing the first week.  I offered this "after" completing the first week.  I did not tell them this before the first week.

I've been given more compensation than what I was told originally by venders several times in my business dealings in the past.  I'm a contractor for land line telephone companies in the U.S.  I teach their technicians how to use their meter to identify and locate troubles.  I also consult with training departments to help them be more affective.  I've had business dealings with various vendors for my training boards I've designed and built.  Over 200 solder connections in each training board that simulates 19,700 feet of 24 gauge/ Air Core Cable [Not jelly filled].  Jelly filled is .092 uF per mile/.0174 uF per 1000 feet and Air Core is .083 uF per mile/.0157 uF per 1000 feet.  They've been late before and gave me more compensation than what was originally stated.

Will BITMAIN do this?  I don't know.  Only time will tell.  However, I'm NOT going to be rude while waiting on compensation.  Being rude may very well ensure hate and discontent of both parties and reduce the chance of a more profitable compensation.

I've learned through my business dealings, it's just not profitable to draw conclusions and "react" on those conclusions drawn without an actual "conclusion."

EDIT:  I'm about to take a shower and meet my wife downtown for lunch.  So, I will not be able to check back in for a while.

Where are you getting that there might be compensation with coupons?  If they followed past and did decent coupons yes it could be a much better compensation then what I thought I read.

I thought I read it was like the amount it would have made on PPS till it ships.  And you don't get paid for time in shipment only till it ships.  I don't see where they left it open for coupons unless I missed a post from BM.

Thank you for posting! I think I seen my miner  sitting there 😉

I have no idea what was "weighed" in their mind when deciding shipment dates.  It's actually quite possible they did not take the time to do quality control checks the way they should have because of less employees due to low bitcoin price.  They may have "intended" to have a certain number of rigs manufactured and shipped before that holiday but ran into a series of unfortunate events.  Which ended up going all the way to the holiday.

In the future, I believe they will allow extra days for possible "unfortunate events" [That do not fall during a holiday].  As for "... they learned they can do low compensation," I have not seen the compensation yet.  So, I'm not going to comment on the compensation until it is delivered to those who deserve it.  This compensation may also include a $100 coupon for each rig that was ordered.  If one cannot use the coupon, they can sell it.

I realize everyone does not have the same situation.  Some have free power and I can see where the compensation would not be as attractive to them as it would be for others who may pay $0.10 kWH.  Those people would have to decide for themselves if they wish to continue business with BITMAIN in the future.  If they do wish to continue business in the future, it does not help them in the least to be rude.

I personally feel we should be allowed to get the rigs for the same price as batch 3.  Will the compensation with possible coupons be close to that?  Only time will tell.  I'm not going to draw conclusions until compensation comes to pass.

I believe your right. It seems to me this happened in the past (maybe with the S1's) when Bitmain was consatrating on shipping that a lot of people received their miners before they got email tracking numbers. That is when we learned to watch your UPS account for shipping info.