Topic: Bitmain's Released Antminer S9, World's First 16nm Miner Ready to Order - page 234. (Read 531168 times)

That always happens for my miners too, during the startup for a short moment.
But they start hashing normally.
----
edit: By the way, S9 batch 16 is most likely coming up soon.
I found this at www.bitmaintech.com/bitcoin.htm list.
Batch 16 at 13.5Th/s: https://bitmaintech.com/productDetail.htm?pid=000201610020801570128HI8003t05EC

Looks line one of mine has had a more catastrophic failure.

To further minimise occurrences of dead boards or controllers.... I highly suspect no corellation but gut feel tells me that rebooting / refreshing the S9s every 2 weeks can help keep these Ants on their toes in addition to underclocking. Anyone?

I added a screenshot of BMminer showing that POV of the problem board:


This is what happens after 1 minute exactly.

the poster pocketartillery has not posted from 2012 until today  and he is posting a 4500 us dollar sale asking for btc.

can you say scam possibility looks higher then 50%?

Why is he getting rid of brand new equipment?

pm sent

Prices?

I have used ones.


Show Details for Invalids:
Worker Name:   Work Diff   :Last Share   Shares   :Diff   :Share Rate   «Elapsed   :Invalid   Block %   :Hash Rate

philipma1957.one   9.493k   5s   13,742   130,452,806   13.71THs   1m 53s   0.131%   0.033%   12.59THs 
batch nine 1 dead board 1 dead controller fully repaired

philipma1957.two2   11.229k   1s   11,775   132,221,475   14.94THs   1m 53s   0.093%   0.033%   12.12THs
batch 2 always worked 0 issues

philipma1957.4   8.739k   1s   14,023   122,546,997   13.62THs   1m 53s   0.093%   0.031%   11.61THs
batch 3 or 4 always worked 0 issues

philipma1957.6   6.947k   9s   13,168   91,478,096   10.56THs   1m 53s   0.114%   0.023%   8.79THs
batch 1 had a dead board replaced needs a second board replaced.

philipma1957.7   1.042k   1day   0   0   0GHs   1m 53s   0%   0.000%   0GHs
rollover s-7 not for sale.

Total: 5 (3 miners)   52,708   476,699,374   52.83THs       0.107%   0.119%   45.11THs


so any of the s-9's can be shipped to the USA on Monday

New batches for sale anytime soon ? anyone knows ?

Screenshot from my s9 Batch 14

Had it about 2 weeks and seems to be happy.

I have another dead hash board two weeks out of warranty.

If anyone can take a look at some pictures and offer advice it is appreciated.

I may have bad solder joints.

Close-ups of possible failure locations here:
http://imgur.com/a/iS4O8

Many pictures of board and miner here:
http://imgur.com/a/6tZeO

yep try to leave them alone as much as you can.  I had the first five run trouble free for 75 days

all trouble came when I added the one in august.

I think the august one cam with a defective hashboard which in turn damaged the controller.

this caused me to have to do a lot of resets adjustments and I think I damaged the batch 1 unit.  So far two dashboards are dead  one last month now one today.  I will need to send in the dead board for repair as it is out of warranty.

so 4 perfect units

and 2 units bad
the batch one = 2 dead hash boards
the batch nine = 1 dead hash board + 1 controller

out of pocket so far 50 for shipping two hash boards 143 for a new controller

193 spent

I also spent 187 for other parts as spares.  I have a new controller extra I have 2 fans extra.


I will need to ship and repair the new dead hash board 650m style

I wonder if the extended unavailability on the website means a board redesign is in the works.  Judging by the network hashrate though I would bet large orders are still going out the door.

I have been lucky so far.  Other than one problematic, low hashing board, both of mine have been doing fine.  If I was to predict a board failure it would be that one board since it sometimes shows random X's that come and go if I try and run the unit at stock freq.  That one is a batch 3.  The other one I have is a batch 4 and it seems solid so far.  In fact with the cooling temps of autumn, I OC'd it to 606 and it has been doing fine with a solid 12.98 Th.  I was using a script to change freq on the B4 twice a day for the past few months without a problem.  I even had a utility power failure a week or so ago and everything came up fine after the power was restored.  But other than that power failure I haven't power cycled them more than once or twice each.

I did have one weird instance where both of them dropped two boards each.  One showed all boards fine but with two of them with zero hashrate, the other showed two boards all X's and zero hashrate.  But a simple cgminer restart worked, no power cycle was necessary.  Since they both puked at the same time I am inclined to believe it was either a power issue or a network issue, but a power problem seems less likely since none of my high-end UPS's in the same room logged anything weird at the time.  The miners are not actually on the UPS's since their power draw is a bit much and I need the UPS's for servers and the like.

I want to upgrade my last remaining S7 but I am holding out for something else at this point.  This S7 is one of the original 54 chip board ones and it OC's like a champ.  I have been getting over 5 Th from it from almost the very beginning (although the error rate has crept up over the months).  So I am not eager to let it go for something that seems likely to have a failure.  The S7 pricing and then the S9 release so soon after caused me to almost not get 100% ROI on the S7's before I started replacing them, but this one is making my S7 profit slowly grow beyond just a break even.

If bitmain came out with a new miner, even using the same chips, I would consider it after some time if the failure rate looked ok.  But right now I am thinking whatever Canaan comes up with is the one to wait for.

I do have to say though, bitmainwarranty in Denver has really increased my confidence level in bitmain overall lately.  Those guys have been doing what bitmain in China should have been doing all along in terms of responsiveness and customer service.  Even so, the S9 reliability looks too poor for me to get another right now.

One success I've found to keeping these S9's running relatively trouble free is set them up and leave them alone. I do not under any circumstances mess around with them unless absolutely necessary. I don't change clock frequency, fan speed etc depending on time of day or temp, nothing I just leave them alone.

Edit: Fortunately fall is in the air in my area and I hope to not have to mess with anything until summer.

no  but NotFuzzyWarm may have done an in house repair on an inductor.

I also referred him to bitmainwarranty.com in USA vs bitmain.com in China

and my third board died today.  I had finally got all the parts from bitmainwarranty to do the controller repair and a board died 1 hour after I put the controller in.

I had 6 s9's Sold one to buy solar for the solar array it is flawless
SOLD 1 to a forum member it is flawless.
2 other running in the array flawless.  So 4 good

1 batch one has now tossed its second board
the batch nine first tossed a dashboard then tossed the controller.

so 3 dead boards and 1 dead controller.

I ordered 2 controllers on my dime
I ordered 2 fans on my dime  for super parts.

2 hash boards were replaced for shipping fees only
the dead controller i am using one of the controllers I paid for.

and I now must send the third hash board in for repair.

Do you know of a way Phil?

I've had to send them all in for repair. Whether you choose sending them to Hong Kong for warranty or Denver is up to you. Hong Kong is free during you warranty period, Denver costs money but is much faster.

sent a pm