did you choose full speed or low speed?
seems to me you choose full speed.
I wonder if 240 volts and low speed is safe
and 240 volts and high speed is not safe
also does your 240 volt setup run hot say 243 volts to 245 volts.
My home can be 238 to 246 volts.
It could be you drifted past 240 to 243-246 and on high speed they power down.
I wonder if they would have been fine on low speed.
So this now brings us to 5 issues for the s15's in this thread.
As of today I think no one has said the m10 has had a fail.
I mention this because the t15 s15 m10 are the three best units for mining as of now.
It will be interesting to see if the t15 and s15 get better
the s9 got better.
it will be interesting to see if the m10 stays trouble free.
Topic: Bitmain will be releasing S15 and T15 on 8/11/2018 - page 8. (Read 31485 times)
I’m running my T15 at 200v since Tuesday without issue. How long have you waited between trying to get it running again? The APW5’s I have, when they trip into protection mode, can take 15 minutes of being unplugged before they’ll respond to power input again. I wonder, what are the stats on the APW8?
I was thinking that too. Did try to re-power the units a couple times over the course of a few hours, but no luck. One unit was in my basement, about 60 degrees ambient and only ran for about 45 minutes. The psu on that unit was quite hot to the touch just after it lost power. The other unit was in my garage, about 35 degrees ambient. That unit ran for 11 hours before it lost power, again, the PSU was quite hot to the touch. I put a meter on both the outlets and they tested 240v. I will take both S15's back into the office Monday and put them on the rack at 208v and see if they power back up, or if something inside the PSU is actually blown. I would like to open them up and do some power troubleshooting but I don't want to void the warranty in case they need to go back. Bitmain doesn't seem to be offering any spare parts for these yet. I don't know if my experience is typical but I wanted to throw out a word of caution if anyone else is operating these at the high end of their voltage rating.
What input voltage are you guys running these at? The 8 S15 28Th units we've been running on our rack @ 208v since Monday are all functioning perfectly. Two units that arrived yesterday that we setup at a different location on 240v ran fine initially but both failed within 12 hours. PSU dead, no power. The card included with the units shows a rated voltage range of 200-240v.
I’m running my T15 at 200v since Tuesday without issue. How long have you waited between trying to get it running again? The APW5’s I have, when they trip into protection mode, can take 15 minutes of being unplugged before they’ll respond to power input again. I wonder, what are the stats on the APW8?
Anyone gotten to Overclock these babies?
got an S15 28th
firmwire 3dec 2018
seems i cannot do anything with it.
Ssh doesent work neather, thats why im wondering if anyone gotten to OC these ones or gotten any more info out of them
got an S15 28th
firmwire 3dec 2018
seems i cannot do anything with it.
Ssh doesent work neather, thats why im wondering if anyone gotten to OC these ones or gotten any more info out of them
What input voltage are you guys running these at? The 8 S15 28Th units we've been running on our rack @ 208v since Monday are all functioning perfectly. Two units that arrived yesterday that we setup at a different location on 240v ran fine initially but both failed within 12 hours. PSU dead, no power. The card included with the units shows a rated voltage range of 200-240v.
Seems they are selling 27 TH/s and 28 TH/s batches at different prices now. My scoring hashrate has been averaging 28-30 TH/s on Slush and sometimes spikes at 32 TH/s. No problems since turning it on.
Yeah, we know... 
And it looks like they changed the S15 price back to 1.2k USD. 
No coupon was sent to me.
No coupon was sent to me.
Dang, I knew I should had wait a bit.
I paid 1.2k USD for the S15 (27Ths Jan. 11-->)
and now they dropped the same batch price to 1k USD.
Fuck.
I paid 1.2k USD for the S15 (27Ths Jan. 11-->)
and now they dropped the same batch price to 1k USD.
Fuck.
Price went back to 1.2k USD
For the 10 trillionth time, Socket Connect Failed IS NOT AN ERROR.
Literally all it means is cgminer is not running.
I have noticed when changing pool information on the T15 it can take another 15-20 minutes before it starts hashing again.....how long did you wait before deciding it wasnt working?
Literally all it means is cgminer is not running.
I have noticed when changing pool information on the T15 it can take another 15-20 minutes before it starts hashing again.....how long did you wait before deciding it wasnt working?
Yeah this also happens on other machine from other companies they are all running cgminer. Even 30 minutes before it connects can happen.
Some tips if it happens a lot
use good ETH cables
Make sure your switch works.
Long ETH cable runs can make it worse.
Avoid WiFi
T15 issues. When switching pools I keep getting Socket Connect Failed.
For the 10 trillionth time, Socket Connect Failed IS NOT AN ERROR.
Literally all it means is cgminer is not running.
I have noticed when changing pool information on the T15 it can take another 15-20 minutes before it starts hashing again.....how long did you wait before deciding it wasnt working?
Looks like it's making friends already.
Some pics from unboxing to setup:
Crap, makes the coupon moot doesn't it... 
Got 'til the end of the month before it expires, guess I'll keep an eye on price and make a move if it dips again.
Got 'til the end of the month before it expires, guess I'll keep an eye on price and make a move if it dips again.
And it looks like they changed the S15 price back to 1.2k USD.
No coupon was sent to me.
No coupon was sent to me.
So much like the early s9s there are problems.
So far 1 t15 and 2 s15 based on the threads.
Batches 1 to 6 on the s9s had trouble .
Can you. try. A different firmware?
So far 1 t15 and 2 s15 based on the threads.
Batches 1 to 6 on the s9s had trouble .
Can you. try. A different firmware?
T15 issues. When switching pools I keep getting Socket Connect Failed. It takes several re-boots (quite a few sometimes) and finally connects. Annoying. Now, after less than a week, I lost a chain. So now hash is under 15TH.
Decent Bitmain price drop ftw.
I had a lot of problems with the network error initially. But figured out I needed to follow the static IP setup to accept a new pool. I think it's a great machine so far. 28.5ths running full power. Over 18 in economode.
Which FW did your T15 ship with?
Miner Type Antminer T15
Hostname antMiner
Model GNU/Linux
Hardware Version 13.16394.1.3
Kernel Version Linux 4.6.0-xilinx-gff8137b-dirty #25 SMP PREEMPT Fri Nov 23 15:30:52 CST 2018
File System Version Sat Dec 29 10:39:18 CST 2018
CGminer Version 4.9.0
^^ Good to hear.
Now the question will become how many weeks/months the miners run before we start seeing issues
Now the question will become how many weeks/months the miners run before we start seeing issues
I have been doing this for a few years now, and bitmain reliability is on par or better than any company I have worked with outside of Canaan, whose miners are never competitive anyway.
Vrobb I'm sure they're sticky on this, the largest coupon you can use for this batch of s15 is a 240$.
I only know because at that price I've been on the hunt for real, and cheap coupons.
Damn, I hate when that happens. Email them and maybe they'll throw you a bone, probably in coupon form.
I only know because at that price I've been on the hunt for real, and cheap coupons.
Dang, I knew I should had wait a bit.
Damn, I hate when that happens. Email them and maybe they'll throw you a bone, probably in coupon form.
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