Topic: Bitmain's Released Antminer S9, World's First 16nm Miner Ready to Order - page 289. (Read 531168 times)

Well -- DHL failed to meet their Friday delivery -- however, they did manage a 4th of July delivery to try and make up for it...



It seems like everything is running fine!!!

Woohoo!!!

 

Only a fool pays full price at 2+ BTC for the next batch, with halving in the next 5 days. Bitmain will have to drop S9 price by 50% right after the halving. But stupidity and greedy go hand in hand.

The S9 B3 I have seems to run a couple degrees cooler than my S7's in the same environment, keep in mind the S9's also use a 6000RPM fan on the front so they can certainly be louder.



Yup, 2.77 is definitely less than 3.05. Never said it was a better value.

Does AC is required for more cooling or table fan would be enough for 2 x S9?

Planning to run it for 24x7

Going to either stay the same, or go down slightly imo. Why make an 18TH/S miner when you can sell an 11.85TH/S miner for the exact same amount? They're going to take the path of least resistance and make a weaker miner just because they can. They could even use less ASIC chips on the board and clock it higher just to save money, nobody knows at this point. if there's going to be an 18 TH/S miner, it's going to be a new model.

So what is Next?

Batch 6 with 18TH/s?

New Run of the Same 11.85TH/s?

Default Frequency reduction from 600MHz to 550MHz. They must be selecting ASIC's / Hash Boards and setting appropriate Core Voltages and Frequencies.


Rich

whats the reason for reducing th/s?

Hey hey,

maybe someone can help - what kind of silent-fans do work with the s9 ?
I have several fans here (max speed 2200) .. but the s9 wont start mining with them - maybe to less speed ?
SO i mounted the original airplane-turbines again to the miners .. but the noise is terrible ..

Do you really see the price drop ?

Batch 4   12.93 TH/s   3.05 BTC

Batch 5   11.85 TH/s   2.77 BTC

They will often grey out the button if the USD/BTC/CNY price moves too much, and will update the price multiple times daily if necessary.

You are probably right they are sold out, still took longer to sell them than I would have expected. Hopefully this means the batch 6's will have another decent drop in price.

Looks like Batch 5 of the S9 is done (i.e. Grey BUY button). Apparently the moniker of "Limited Edition" was accurate! 

Good points.
I will move it to another PSU and see how it acts for a few hours and then if no change I will downclock it to 625.
So many different directions which were possible to go, but these do sound like the best of the lot.

Thanks Phil

Lower the clock to 625 run for a day see what happens.

I have five of these  they all like lower clocks.

My take on that board is it wants a lower clock .

Now it could be the 2880 breakout board is failing and you should measure every  pcie jack.

This is the first S9 purchase I made, which has been stable running on Kano.Is. It has been within hashrate spec, and overall I think everything is as expected. (I have learned what to expect over my many BM purchases so when I say "as expected" I do not mean to infer there are not many things which should be handled differently, I mean it is as expected, and I was fortunate to receive this unit as it is.)

It is a Batch 1, which I had reservations about after the S7 fiasco, but as usual, there were not many choices for "after the halving" gear. That is not what this post is about, so please refrain from debating it being a sound purchase, halving effectiveness, etc.

This, is a Hardware question, which I have seen at least one other person post about but I have not found much in the way of answers.

I have one hash board generating almost all HW errors.
This is the first time bitmain has shown us this on the GUI (to my memory.)
So, one question I wonder is how common it is for one board to cause the majority of the HW errors?

Is it a warranty item? It is hard enough to get Bitmain to pay attention to warranty claims unless going through Yoshi, and he and I are in talks regarding a different purchase but he couldn't get me one out the door fast enough for me to play with so I ordered direct. I have not spoken with Bitmain about this, as again that would not get me anywhere near the reasonable responses I usually read here and I thank all of you in advance for such. This is one of the reasons I love this community, like a family there are those of us who do not get along, but we can still have intelligent conversations with positive outcomes.

So back on topic, how many of you are seeing this same thing, and what are your thoughts from both a technical and ideological viewpoint?
Should I try swapping the physical position of the board?
Swap complete electrical connections with another board?
What about a warranty pursuit? Sincerely it would come out of my pocket to get anything done reasonably fast because I would really buy it if it is even available. I don't want to be down.

My technical concern is this is a sign of a board which is failing, and I will end up down because of it. I prefer to be proactive.
Maybe I should swap it with one of the batch 2 unit hash boards and downclock it? Hmmm, just talking that point out, I have not downclocked the unit to see if I can reduce those HW errors, maybe that should be the first thing I do?

I think many of us believe Bitmain are finishing up the recent batches with lower grade chips. Maybe I have one which they considered fine due to the overall hash and error rates being within spec? What is the "spec" on HW errors.

How would you approach this with Bitmain?

Thanks again for input.

By the way, this is running on the Finksy / Jabber 2880 bo board with a 2880 PSU without any other hardware connected to this PSU. I originally set it up this way because I always burn in my units on individual power supplies so I know nothing else is a variable. This one has been left this way until I had time to sort through this particular issue.
I plan to move it to a 4k setup from Jabber / Finksy with another S9 once I complete the burn in on that unit.

Most profit depends on your expenses. Like your electricity cost? Are you running it in your house, if so its going to be hot and you may need more cooling, etc etc. But I still think its profitable. I just purchased my first S9 and plan to get more soon. The efficiency is there and I am in a good spot for electricity.

Pictured above: Real BTC's  

LOL... you might as well point it to zpool.ca:3333 and get real BTCs 

If there is any mining at all after the halving, the S9 will be the most profitable machine in terms of revenue minus operating cost. Whether that accrued profit will ever exceed initial cost is a different question.

I am planning for 2 x S9 purchase

just having a doubt, few are saying that mining wont be profitable after halving

Is it true?