ANTMINER S3+ Discussion and Support Thread

[bspurloc]

Man I hate these 2 S3's I have that wont mine at 500gh/s.
I put them at 250 and they mine at 470ish, put them at 243 and they mine at 492.

You think that's bad ? You could be a batch 1 buyer that had 50% of his units unable to perform stably at 218.75mhz.

Have 3 units that can only run stably at 212.5mhz. Plan on getting around to re-pasting them in the near future to see if I can't improve things.

Ask me how annoyed I am. Especially when I emailed Bitmain early on in the S3 process and they assured me they would not be updating the S3's in the future to resolve the performance problems... And lo-and-behold the S3+ arrives a month later.

Don't get me wrong, I'm a huge fan of Bitmain, and more than 50% of my hash power comes from their devices, but the S3 launch did not go as well as the S1 launch, it appears the S4 launch (Don't own one) has been problematic, and given anecdotes I'm reading here, seems the community consensus is confirming my gut-feel: Bitmain is losing it's way

Funny that I'm thinking of circling back to AsicMiner products for my next miner purchase...

That is why I have been trying to stay away from the inital batches!!

The C1's however....  1th/s  1BTC seems fair, 800watts.... makes those s2 2th/s way too much money of course.

For kicks, I threw the C1 into my spreadsheet, I get 1.048 BTC shipped to my mining facility in the USA. This does not include a PSU (which I don't include in my other calculations, which slightly inflates the relative cost of the S4 & S2) or the water pump. Assuming a customer buys the water pump Bitmain recommends (which you'd be dumb not to), it's $50 (let's call it 0.13 BTC today). The end result in BTC/TH is:

Block Erupter Tube (10x):   0.9875
Block Erupter Prisma (10x):   1.0642857143
Antminer S3+ (10x):      1.2682119205
Antminer S4 (1x):      1.8475
Antminer C1 (1x):      1.178
S2 – Used (1x):         0.9484897125

So yes, the C1 is cheaper than the S4, and even the S3, but still not as cheap as the Prisma, and requires a considerably more involved setup, with higher risk of failure. I might get one for the novelty, and as hashrates increase air-cooling may end up being insufficient to be competitive, but at the moment, air-cooled hardware is still more competitive on a BTC/GH ratio, but not on a GH/Watt ratio (but how much power do the pump and fans draw for that TH? That may tip it back in favor of the Prisma).

It's intriguing, but having seen Cointerras in action, I'm not entirely excited about the prospect.

they are saying 70amps on 12 votls or 840watts... so $50 for pump etc and $100+ for power supply + $100+ s/h

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[Xian01]

People re-paste, then switch miner on-it reports better numbers for a first 12 hours-and these fellows post giddily about it. They don't post that later it goes back to the same numbers as before or worse

Every underperforming unit I have repasted (2 so far), have run better weeks after working on them.

[Biodom]

People re-paste, then switch miner on-it reports better numbers for a first 12 hours-and these fellows post giddily about it. They don't post that later it goes back to the same numbers as before or worse

Every underperforming unit I have repasted (2 so far), have run better weeks after working on them.

well, 2 out of 2 and 1 out of one (mine) makes no rule, especially if we are talking about different batches. B1-3 had a "weaker" controller that resulted in some machines hashing at 410-415 GH. I had one of these and re-pasting it made absolutely no difference.

[HerbPean]

People re-paste, then switch miner on-it reports better numbers for a first 12 hours-and these fellows post giddily about it. They don't post that later it goes back to the same numbers as before or worse

Every underperforming unit I have repasted (2 so far), have run better weeks after working on them.

well, 2 out of 2 and 1 out of one (mine) makes no rule, especially if we are talking about different batches. B1-3 had a "weaker" controller that resulted in some machines hashing at 410-415 GH. I had one of these and re-pasting it made absolutely no difference.

I got two unit from Batch 1, One rocking solid at 504GH and the other one running at stock freq and only at 424. He did run one month at 440 but i never understood why ... I tried reboot, shutdown/cooldown. I'm wondering if i should repaste it since it's not so successful around here.

[Biodom]

anybody tried to use more than 1 coupon per each S3?

[montyfd]

anybody tried to use more than 1 coupon per each S3?

Does not work

[praeluceo]

anybody tried to use more than 1 coupon per each S3?

Does not work

Nope, 1 coupon per miner, for as many coupons as you have. They get the price right around 0.66 BTC/ea with shipping, which resets the price back to Batch #7 pricing! I thought for a moment that the price was down to 0.53 BTC/ea for certain quantities, but it turns out I just clicked on the shipping method before their webpage had updated the $$/BTC figure. When I tried placing my 0.53 BTC/ea order, the net price was recalculated "correctly" with the current spot price and the total ended up at 0.65 BTC/ea.

For reference I ran a bunch of quantities through their cart to get a feel for how shipping is managed, it's not entirely consistent, and YMMV (I'm in the USA), but here's what I found (these are after coupon prices):

Quantity   Extended   BTC/ea
2      1.391      0.6955
3      2.043      0.681
4      2.616      0.654
5      3.274      0.6548
6      3.95      0.6583333333
7      4.61      0.6585714286
8      5.22      0.6525
9      5.87      0.6522222222
10      6.524      0.6524
11      7.193      0.6539090909
12      7.761      0.64675
14      9.055      0.6467857143
16      10.43      0.651875
18      11.723   0.6512777778
20      13.037   0.65185
22      14.355   0.6525
42      27.394   0.6522380952

And so there we are. An average price of 0.657 BTC each. Not exactly what I wanted to see. So for anyone who bought Batch #7, you basically mined -for free- for the past 66 days compared to anyone buying an S3+ today. Or, to take another way, if you're buying a Batch #11, you're giving Bitmain 66 days of mining time -for free-. The least they could do is offer free "shipping" to their cloud service, since the miners are already pretty much there, or give new customers a voucher for 100 days of the hashrate they're purchasing, of cloud mining (i.e. "Buy 2 S3+ and get a voucher good for 100 days of 900 GH on Hashnest!").

[Biodom]

anybody tried to use more than 1 coupon per each S3?

Does not work

I don't think there is or will be much interest in these, unless you can use multiple at least up to the cost of shipping.

[faetos]

Coupons are on the site now. 0.035 BTC. Doesn't even cover shipping. Gimmie a f'ing break.

[OrangeGator]

Is there a way to check the Batch number of an Antminer S3?  I bought 3 off of ebay, and am curious what batch(es) they are.  The seller did not know.

[ZiG]

Is there a way to check the Batch number of an Antminer S3?  I bought 3 off of ebay, and am curious what batch(es) they are.  The seller did not know.

Good luck with that...

Cheers,

ZiG

[suchmoon]

Is there a way to check the Batch number of an Antminer S3?  I bought 3 off of ebay, and am curious what batch(es) they are.  The seller did not know.

Does the seller know the original purchase date and/or tracking number? You could probably determine the batch by that.

[OrangeGator]

I think the seller got them used before me, so I doubt it.  They mine fine at stock, but don't overclock worth crap.  I got a great deal on them, including psu's, so I'm fine with it.

Does the seller know the original purchase date and/or tracking number? You could probably determine the batch by that.

[aurel57]

I think the seller got them used before me, so I doubt it.  They mine fine at stock, but don't overclock worth crap.  I got a great deal on them, including psu's, so I'm fine with it.

Does the seller know the original purchase date and/or tracking number? You could probably determine the batch by that.

Just curious on what you paid?

[Stratobitz]

Is there a way to check the Batch number of an Antminer S3?  I bought 3 off of ebay, and am curious what batch(es) they are.  The seller did not know.

Does the seller know the original purchase date and/or tracking number? You could probably determine the batch by that.

With earlier batches this would likely work - or just contact BMT and ask. Just FYI Batch 8 and Batch 9 were actually the same batch.

We had ordered a bunch of B8 on pre-order, and then ordered a larger order of B9, and they shipped 1 day apart - even though we placed the B8 order like 3 weeks before B9.  Perhaps they had extras, or cancellations, but B9 was only sold for a few days and shipped with or immediatley after B8.

Strato

[OrangeGator]

I paid $690 total for 3x Antminer S3 and 2x EVGA 650W Gold psu's.  Seller sent them via next day Fedex.

Just curious on what you paid?

[bspurloc]

anybody tried to use more than 1 coupon per each S3?

Does not work

I don't think there is or will be much interest in these, unless you can use multiple at least up to the cost of shipping.

pretty lame 1 coupon per miner... $13 off each

[bspurloc]

I paid $690 total for 3x Antminer S3 and 2x EVGA 650W Gold psu's.  Seller sent them via next day Fedex.

Just curious on what you paid?

Well how are you going to overclock 3 S3's with 2 power supplies that can't supply enough current to do it??
Each S3 at 250 will draw 400+ watts.
I would connect just 1 or 2 and try to overclock them 243 and 250. if they work then it is what I noted, the power supplies cant supply the amps needed for 3 overclocked

[klondike_bar]

anybody tried to use more than 1 coupon per each S3?

Does not work

I don't think there is or will be much interest in these, unless you can use multiple at least up to the cost of shipping.

pretty lame 1 coupon per miner... $13 off each

It's about 7% discount - not terrible

[klondike_bar]

I paid $690 total for 3x Antminer S3 and 2x EVGA 650W Gold psu's.  Seller sent them via next day Fedex.

Just curious on what you paid?

Well how are you going to overclock 3 S3's with 2 power supplies that can't supply enough current to do it??
Each S3 at 250 will draw 400+ watts.
I would connect just 1 or 2 and try to overclock them 243 and 250. if they work then it is what I noted, the power supplies cant supply the amps needed for 3 overclocked

400w at 500gh is pretty much the ceiling for OC. The combined power of 2x650w supplies should be sufficient if there's at least 600w(50a) on the 12v rail for each.

Running at a moderate OC (such as 231.25mhz) should give you 475gh/380w per unit