Topic: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH - page 349. (Read 528055 times)

i think that it takes some time to stabilize, even more than 2 hr.
what exactly is fan % changes? i changed to 90% and it is the same fan speed as before-4200/4200 (it did not become 3800).

I'm Cdn too. I've had decent luck with UPS when ordering from Bitmain. Maybe, try them next time.

Got one up and running for two hours. It has EVGA Gold 1000 on two boards and EVGA Gold 650 on one board and controller.

Getting 4,845 on default 600
Temperatures are 50,50,51 
Fans are 4,080 and 3,960
HW is .0065%
Drawing 1,271 watts from wall
I am mining on Eligius.

I have it in the same room with several S5's and I don't think its really any louder. It just has a lower pitch noise then the S5.

I tested 6 different freq.

givens:
time:  15 + minutes
PSU:  silverstone 1200 on 2 blades, SS750 on 1 blade and bone
pool:  antpool
HW:  taken from the Diff1#  column


this is a second s7 runtime 18hrs

my take:


stable basic btc miner.. thank you bitmain... HOWEVER, it should have been sold as a 4.6th miner, not a 4.8  imo

I will be running mine at 593 freq.  


update:  so here is a twist.. moved it into the DC room and after 20 minutes at 593
temps are 55 with a 4500 fan

yeah it seems like higher freq net like 50-100GH at most.. but vs higher power draw it might not be worth it for such a small bump.

my troubled s7 running stock settings is slowly climbing after 1.5hrs its at 4725gh and 0.04% HW

WU is almost at 68K, speed is still climbing (currently ~4840GH average) at 600 while temp stays in at around 53 even with my current 81F ambient (it is still freakishly hot for the end of September-90F or slightly above outside).
HW error 0.0067%. it might be able to overclock, I think, or 600 (default) is optimal for this machine
Remember last summer S2 with WU at 14-15K using 1.1kw.
Gosh, i like scientific progress.

WoW,

So I tough my nightmare was done when I lost 1 day for the custom in China ... Guess What ... Took 1 day in the US and it's taking 1 more day in the Canada.

Did they send me drugs instead of miners ?

I never see that before... either it's bad luck, DHL sucks or i'm been flag by my government ...

DHL "Express" yeah right ...

has anyone tried any other freq settings?

ive got one that struggles, gets around 4750GH with 0.04 HW rate at stock settings..

and another that seems pretty beastly getting 4900GH at freq612 with 0.009 HW rate

edit: testing 606freq on the good one now, seems to be a sweet spot.. 0.006 HW and similar speed

edit2: also my 2 were pretty dusty. you can tell they werent new and have been running awhile.. even a little moth stuck inside

Pics: http://imgur.com/a/8wOjG

edit3: my second unit (the one that struggles) dropped to 4.66TH (which is what they were emailing ppl about)

yes, last winter i got 30-50% savings on natural gas.

Did anybody receive shipping update from Bitmain lately for orders placed after Sep 1st?

I have used DHL on my S3+, S4, and S5 purchases, all have arrived without any issue. I personally use FedEx for all the other shipping I do. I cannot be upset that customs wanted to check out my package. Regardless, it is now in Miami and out for delivery
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I've used all 3. No probs with any of them. Yesterday, my UPS shipment was supposed to be delayed til today because of a mechanical problem. Yet they delivered it yesterday and I was able to set it up. Certainly can't complain about that.

LOL..  not in a garage or DC I take it... well it will be a good heater for this winter!

Initial observations (got S7 yesterday, but had a busy day at my "regular" activities):

1. first two seconds-clanking and whining noise without fan even at a high speed yet-but i already had this before with S5.
There is a simple reason-bitmain sometimes overtightens the screws on the first fan or even the second fan.
For newbies at this: Don't panic, use a screwdriver to slightly loosen some of them-half turn or even less (typically not all four!)
i did it on the fly, but if you want to be careful, switch it off, then loosen, then switch back on-repeat until no noise is coming from the fan(s)
2. It is too early, but it looks like I am at ~4833GH (after 2hr) at setting 600 and 1298W (0.268J/GH) at the wall using evga 1300 with two single cables extended by splitters.
fans are at 4200 (both!), temp 51-52 at 28C ambient (~80F). Will move to other settings after a bit (like to warm it up on default first).
2. i am using spare couch pillows to "barricade" it-at 1m noise ~63-64dB,
Edit: one extra plastic board and it is now 60dB in the spare bedroom at 1m distance, I put pillows/board in zigzag fashion-it seems to affect sound.

What a great analogy!!! I used to love IBM harddrives back in the day. Bought them for all the computers and servers. Then IBM released the Deathstar 75 series, lol. After experiencing 10+ failures with those harddrives I never bought another IBM harddrive, or Hitachi after they bought IBM harddrive division.  Mostly just use Seagates now.

so true.. I always use UPS.....  until my driver was transfered.. he would even call me if needed a signiture and I didn't pre sign ...  some cigars primed that pump

+1! I've had good experiences with FedEx too.

My first S7 order was exactly like this. Took 3 days and was delivered before 10:30 AM, just as FedEx said it would. No delays and no drama.

Of course carriers are like hard drives manufacturers. Everyone has a different favorite because of personal experience.

They have to much time on their hands if they are x-raying miners.   Seems like opening a box or two should confirm it. 

I really don't like my local DHL.   It's the service I avoid.    But some claim they work great for them.
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I have used DHL on my S3+, S4, and S5 purchases, all have arrived without any issue. I personally use FedEx for all the other shipping I do. I cannot be upset that customs wanted to check out my package. Regardless, it is now in Miami and out for delivery

Break even is for me right now 256 days out including power costs.  Think that puts me right AT halving.  But no one knows what the difficulty increase will be once these things saturate the market and the extra KnC and Bitfury facilities they are building come online.  Ultimately through tax breaks, loss taking, and other accounting gimmicks (all legal) is the way I'm going to be lowing my ROI quite a bit.  Then we got the final sale of the machine itself.  I have 3 S5 units right now.  I'd be happy to dump them for half my purchase price to 33% of purchase price (in 2016) as long as the other party pays shipping.  Then get another S7.

Time for work now .

Yeah, well Bitfury has announced their 0,06 J/GH 16nm technology, so that will get interesting also.
Then there comes 21 with their 0,16 J/GH chip

So it will be getting interesting in here  
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I saw that to but Bitfury wont sell to the public if they do it's gonna shot thu the roof price wise and 21 just what does that do be side offer a new way of accessing the blockchain does it actually mine at 1.15 th or better . if that's all it does i can build a PI for far less like some one said in a post or have a PI now that can do it. is that worth 400 bucks , no.  i see what you mean by 0,16 J/GH chip .I'll wait till Nov for that one.

I was going two buy 2 s7 at least but the price stopped me .it's more a disappoint meant to me then anything for the s7 price.
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KnC and BitFury both are only going to sell to the public inferior products that they are basically bilking you on when looked at in respect to ROI.  The reason is simple.  Both have to satisfy investors and have massive mining facilities of their own they are operating.  IE  They are going to mine and sell the bitcoin themselves, cause a difficulty explosion and walk away with the cash.  Their silent unknown backers will demand it.  And since they are using THEIR money, they (KnC and BitFury) really probably don't have a choice in the matter either.  That's assuming they 'disagree' with their investor's positions.  Which I do not believe they do.  These companies are going to start tech hording like building ICBMs and nuclear warheads.  Then the cycle almost works like the world today.  The countries that have nuclear weapons get damn near free reign over the ones that do not.