Bitmain's Released Antminer S9, World's First 16nm Miner Ready to Order

[NotFuzzyWarm]

Not going to retyped it all again so ref https://bitcointalk.org/index.php?topic=1769399.msg17968291#msg17968291
Done that way each cable is protected plus easier to wire and fuses cost less.

I hope I got it right sir. Is this what I should do for my S9? Put a 35a fuse inline with the positive 3wires going to the Hashboard?
How about the controller? Do I need to fuse it also?

Only thing I would change is the fuse size. For a s9 take it down to 20-25A per cable.
Again, to save typing, ref https://bitcointalk.org/index.php?topic=1769399.msg18004006#msg18004006

[1714005906]

1714005906

[1714005906]

1714005906

[Sr.Urbanist]

Not going to retyped it all again so ref https://bitcointalk.org/index.php?topic=1769399.msg17968291#msg17968291
Done that way each cable is protected plus easier to wire and fuses cost less.

I hope I got it right sir. Is this what I should do for my S9? Put a 35a fuse inline with the positive 3wires going to the Hashboard?
How about the controller? Do I need to fuse it also?

Only thing I would change is the fuse size. For a s9 take it down to 20-25A per cable.
Again, to save typing, ref https://bitcointalk.org/index.php?topic=1769399.msg18004006#msg18004006

What does this solve that a high quality PSU doesn't?

[NotFuzzyWarm]

What does this solve that a high quality PSU doesn't?

It solves the problem of what happens from a short circuit. That short will draw all available power from a PSU. In a heartbeat the voltage will droop and more than likely the other hash boards will drop out giving the entire PSU capacity to feed the short ciruit. That set of cables/connectors feeding the offending hashboard burn.

The only thing ANY PSU will do in that scenario is supply all it can until it overcurrents. That -- takes time during which things burn. As in flames until the PSU shuts down.

Overall to me, this is really more of a concern when using a several-kw supply to feed 2 or more miners eg the 4kw monsters. 333A of sustained current available and probably a short duration margin capacity for 150% of that...

[Swimmer63]

What are the recommendations on pools for a single S9 miner at present? Eligius seems to be de-funked - it was a nice free anonymous pool with useful stats...

Bitmain's pool? They seem to have a charge. P2pool is not an option at the moment.

Thanks for any info.

Kano or Slush for example..

BTC.COM (also Bitmain owned) is 0% fee and pays transaction fees.  They call it "subsidy."  No guarantee how long it will last.  Plus it's PPS.  So you get paid consistently.  If you started with them back in October when they took over the domain I think your cumulative payout would be around 103%.

[Sr.Urbanist]

BTC.COM (also Bitmain owned) is 0% fee and pays transaction fees.  They call it "subsidy."  No guarantee how long it will last.  Plus it's PPS. 

That sounds like the best payout/lowest risk pool out there.  I'm on Kano.  I may point my new S9 to BTC.com, but I really prefer to stay outside the Great Firewall.

[bitsink]

No measurements done yet. Still trying to get the thing to actually start hashing...

I'm just curious if it could be not getting enough power?    

Power is fine. After leaving it running over night, it actually started hashing. Not sure after how long and for how long (no stats available). Clearly this is crap and is not the behavior it exhibited before the hard reset. I am guessing there is a quirk in the recovery firmware, which needs fixing. Maybe a script or something. A timeout maybe (sleep 20s?). Has anybody ventured into the linux filesystem and looked at things in detail? For one it would be interesting to start bmminer manually and see what happens. The single-board-test program seems to do rather little.

Not sure if the thing really *was* hashing. After 1h30 it is still not hashing and the "sleep 20s" is running, at some point this seems to change to "sleep 20m". The log shows 2x63 asics detected (2 boards powered) and all seems well, but the bmminer is not starting. Does anone have the commandline (from ps axf) to start the miner manually?

Further reading has revealed that the "single-board-test" seems to test the pic firmware on the hashboards? Well, surely this does not take more than a few minutes and if there is a problem there would be an error message to be found somewhere...

Why would a hard reset cause such problems?

[solteykr]

Give that person a cigar, they got it right!

As for the controller, while there is nothing there using very high power and I don't ever recall reading about one catastrophically failing on an Antminer actually it *would* be a good idea to fuse it. Because the fans pull a fair bit of current - like up to about 2.5a each at full speed - I'd think an 8-10a fuse would be perfect.

Perfect sir! Thank you for the cigar! Have a great day.

[solteykr]

Not going to retyped it all again so ref https://bitcointalk.org/index.php?topic=1769399.msg17968291#msg17968291
Done that way each cable is protected plus easier to wire and fuses cost less.

I hope I got it right sir. Is this what I should do for my S9? Put a 35a fuse inline with the positive 3wires going to the Hashboard?
How about the controller? Do I need to fuse it also?

Only thing I would change is the fuse size. For a s9 take it down to 20-25A per cable.
Again, to save typing, ref https://bitcointalk.org/index.php?topic=1769399.msg18004006#msg18004006

Will do sir. Thank you.

[bitsink]

Could someone please do a quick "ps axf" or send output from the "monitor" gui tab on their hashing S9 miner (autotune version?) to see the command line options for launching bmminer. I am still struggling to get this machine start hashing again... ;-/

Appreciate the help!

[aarons6]

Not going to retyped it all again so ref https://bitcointalk.org/index.php?topic=1769399.msg17968291#msg17968291
Done that way each cable is protected plus easier to wire and fuses cost less.

I hope I got it right sir. Is this what I should do for my S9? Put a 35a fuse inline with the positive 3wires going to the Hashboard?

How about the controller? Do I need to fuse it also?

instead of going from the psu you could do pci-e on both sides so they plug right into standard cables..
i think many people on here including myself might purchase a premade set of 9.

also you might want to use something like this for the fuse
im not sure if you need 20 or 25 amps tho..

https://www.amazon.com/Qty-Slow-Blow-Ceramic-MDA20A-MDA20/dp/B004I36FJA/ref=pd_lpo_200_bs_t_2?_encoding=UTF8&psc=1&refRID=7Y6DE6WW8591A6JW8TEE

[Swimmer63]

BTC.COM (also Bitmain owned) is 0% fee and pays transaction fees.  They call it "subsidy."  No guarantee how long it will last.  Plus it's PPS.  

That sounds like the best payout/lowest risk pool out there.  I'm on Kano.  I may point my new S9 to BTC.com, but I really prefer to stay outside the Great Firewall.

That's my thinking.  There is no other pool I know of the has 0 fee for PPS.  And getting the fees on top of that is real nice.

EDIT - And they are merge mining Namecoin too.

[Sr.Urbanist]

BTC.COM (also Bitmain owned) is 0% fee and pays transaction fees.  They call it "subsidy."  No guarantee how long it will last.  Plus it's PPS.  

That sounds like the best payout/lowest risk pool out there.  I'm on Kano.  I may point my new S9 to BTC.com, but I really prefer to stay outside the Great Firewall.

That's my thinking.  There is no other pool I know of the has 0 fee for PPS.  And getting the fees on top of that is real nice.

EDIT - And they are merge mining Namecoin too.

How is that possible?  Maybe the higher S9 prices? This PPLNS is good when it's good, but not steady ... been 48 hours.

[aarons6]

BTC.COM (also Bitmain owned) is 0% fee and pays transaction fees.  They call it "subsidy."  No guarantee how long it will last.  Plus it's PPS.  

That sounds like the best payout/lowest risk pool out there.  I'm on Kano.  I may point my new S9 to BTC.com, but I really prefer to stay outside the Great Firewall.

That's my thinking.  There is no other pool I know of the has 0 fee for PPS.  And getting the fees on top of that is real nice.

EDIT - And they are merge mining Namecoin too.

be VERY careful with PPS pools that dont take a fee.. they will eventually go broke and stop paying out. it only takes a couple of long blocks before the pps outweighs the block rewards.

[RadekG]

Definitely ouch.  Its very weird. my S9 has a AVR. but it still got burned. My pocket is hurting now.

I investigated your pictures of failed hash boards. I think the failure was outside to S9 and board is NOT DAMAGED (except connectors).

From your pictures it is clearly visible that only GND is affected. Also controller board's GND is burned. It has nothing to do with AVR or PSU, the problem is outside - check all possible things which was able to touch between PSU's case and S9's case. Carefully investigate what caused high current flow between PSU and S9 case. Maybe S9 touched something at AC mains.

Hope it will save you some money. Anyway, this failure is very specific and adding fuses to +12V will not prevent this kind of failure (since this failure is on GND line which remains unfused).

[NotFuzzyWarm]

Definitely ouch.   Its very weird. my S9 has a AVR. but it still got burned. My pocket is hurting now.

I investigated your pictures of failed hash boards. I think the failure was outside to S9 and board is NOT DAMAGED (except connectors).

From your pictures it is clearly visible that only GND is affected. Also controller board's GND is burned. It has nothing to do with AVR or PSU, the problem is outside - check all possible things which was able to touch between PSU's case and S9's case. Carefully investigate what caused high current flow between PSU and S9 case. Maybe S9 touched something at AC mains.

Hope it will save you some money. Anyway, this failure is very specific and adding fuses to +12V will not prevent this kind of failure (since this failure is on GND line which remains unfused).

And to that I must add that the GND lines MUST remain un-fused for safety!

If is the DC return (aka GND) lines that fried then something is seriously wrong with the AC power setup. Yes placing a fuse there would save the wiring/connectors BUT once the fuses in a return line blow then the case of the miner or PSU is going be be live with the power -- possibly a lethal situation.

Query: What are the miners sitting on? A grounded metal shelf? If so, any signs of arc damage on the miner/shelf area?

[NotFuzzyWarm]

On a different note:
Today I got a bill from Michigan Dept. of Treasury regarding 5x s7 miners I got from Bitmain in Jan-Feb 2016. Seems that when Customs gets involves (1 order was for $3,725, the other was for $3,100) and you have to pay Duty, that imported goods information is reported to your state. Now Michigan wants $409.50 out of state/internet purchase Use Tax for the miners I brought in

Just another reason to stay under the Customs Duty-free limits...

[wolfen]

backed up transactions hit 68000

https://blockchain.info/unconfirmed-transactions

https://btc.com/stats/unconfirmed-tx

Have been waiting 12 hours for one confirmation

[leowonderful]

backed up transactions hit 68000

https://blockchain.info/unconfirmed-transactions

https://btc.com/stats/unconfirmed-tx

Have been waiting 12 hours for one confirmation

We're nearly at 70000 now. Best you can do is use your own node or increase fees or wait till this is all over. Horrible time for txs :/

[Sr.Urbanist]

backed up transactions hit 68000

https://blockchain.info/unconfirmed-transactions

https://btc.com/stats/unconfirmed-tx

Have been waiting 12 hours for one confirmation

I have raised my fees, but once waited 5 days before finally using a website to advance it.  Even at 0.0003350 per tx fee, it's taking about an hour.

[Sr.Urbanist]

BTC.COM (also Bitmain owned) is 0% fee and pays transaction fees.  They call it "subsidy."  No guarantee how long it will last.  Plus it's PPS.  

That sounds like the best payout/lowest risk pool out there.  I'm on Kano.  I may point my new S9 to BTC.com, but I really prefer to stay outside the Great Firewall.

That's my thinking.  There is no other pool I know of the has 0 fee for PPS.  And getting the fees on top of that is real nice.

EDIT - And they are merge mining Namecoin too.

be VERY careful with PPS pools that dont take a fee.. they will eventually go broke and stop paying out. it only takes a couple of long blocks before the pps outweighs the block rewards.

I moved to BTC.com and I think they may skim some hash, but I got my first payment okay.