Bitmain will be releasing S15 and T15 on 8/11/2018

[mgoz]

I received my S15 yesterday. I have it in regular mode currently and it's been averaging 29 TH/s on Slush. Not sure on power draw as I have no meter. The fans seem a little crazy. They will be more quiet than anything else on my rack and then go into full blast like the unit has been rebooted and be louder than anything else. Goes quiet and loud over and over. I will have to double check, but both fans seemed to be sucking air in, not exhausting, similar to Z9 units. My ambient air temp with all my other equipment running is around 50* F.

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[qctechno_isback]

I have my S15 running for 1 day. The two fans for the hashboards are more silent than the little fans in the power supply (APW8). The two fans runs between 3500-3600 and 5000-5100 rpm (21°C ambient). It seems there are two speeds for the fans at full power (1590-1600 W for 28.4 TH/s), maybe more speeds if the ambient temp rises, will see

No problem for the moment after 30 hours of mining. Slush pool returns a day average of 28.5 Th/s. That's OK with the specs.

https://imgur.com/4VUJV0h

Happy mining !

From GUI I can see 4 temps sensors / PCB instead of only 1 in previous Antminer design.
This will surely help to avoid hot spot and better temp reading.
This give me a good felling about improved reliability.

Finally a powerful 7nm miner with better design then packaging 2Kwatt+ in a single tube.

Thanks for sharing

[sarcheer]

it is an okay price good luck with it.

Thanks! This is the first time I've bought a miner brand new from Bitmain, hoping I don't get screwed by their low-reliability. Also hoping that the limited batching will result in higher than normal reliability rates for these new machines. Plus I got to finance through Paypal so that helps haha

[HagssFIN]

New batch for S15 is listed on BM site. 27th at 1600w, 16th at 850 LPM. Thought it might be a new version but specs are essentially the same unless I missed something,

https://shop.bitmain.com/product/detail?pid=00020181210184613385gc3S2eKL0674

I bought one S15 from this batch to test it out,
not sure if I will have a place for it in long term.  

Maybe my friend who lives in a student apartment can help me out,
if it is not too loud in the low power mode.

But what I've seen in videos so far,
it seems that the psu can be quite loud.

[minefarmbuy]

Thanks! This is the first time I've bought a miner brand new from Bitmain, hoping I don't get screwed by their low-reliability. Also hoping that the limited batching will result in higher than normal reliability rates for these new machines. Plus I got to finance through Paypal so that helps haha

The only issues I've had with bitmain where asics bought second hand. Everything I've ordered direct has had zero issues personally but that's been only two units. I don't think we've had any service requests since we launched on any units that have been delivered regardless of make. brb, knocking on wood.

[philipma1957]

The only issues I've had with bitmain where asics bought second hand. Everything I've ordered direct has had zero issues personally but that's been only two units. I don't think we've had any service requests since we launched on any units that have been delivered regardless of make. brb, knocking on wood.

The early s9s had issues  in 2016  but the l3+ the newer s9 the s9i the s9j have run well for me.

[minefarmbuy]

Yea, confirmed we have an immaculate track record. 0 warranty claims on all asics. Not that we expect that to last but kind of nice stat to share since opening our asic sourcing back in April or May.

[sikke1]

I bought one S15 from this batch to test it out,
not sure if I will have a place for it in long term.  

Maybe my friend who lives in a student apartment can help me out,
if it is not too loud in the low power mode.

But what I've seen in videos so far,
it seems that the psu can be quite loud.

It is louder than anything you have had   the psu fans have high pitch noise. They are crazy rpm small fans. The big fans really move some air but they are loud. So loud cant live with it or neighbour will complain.

[MaximeAD]

Not able to connect with SSH on my S15s T15s...

Is it normal?

That's a problem for people managing a lot of miners...

[hacky]

Not able to connect with SSH on my S15s T15s...

Is it normal?

That's a problem for people managing a lot of miners...

Same here on my S15...

[hacky]

https://imgur.com/a/nfeCVDy

My S15 runs 12/03 firmware.

SSH is enabled on 12/05 firmware ?

[BitcfinderNot]

Been running 4 of S 15. Two in full mode. 2 of the 16 chip temp. show 90-92 degrees. The rest between 49-80. Airtemperatur 20 degrees. It shut down at 96. Any idieas?

[sarcheer]

Been running 4 of S 15. Two in full mode. 2 of the 16 chip temp. show 90-92 degrees. The rest between 49-80. Airtemperatur 20 degrees. It shut down at 96. Any idieas?

Possibly a couple of loose heat sinks? A couple of heat sinks out of alignment, disturbing airflow and creating dead zones of air?

Basically, have you tried looking closely at your boards to see if there is anything visibly amiss?

[BitcfinderNot]

Thanks for answer.
No, since there brand new I havent opened them.
Strange is that is the same place one both

The one shows:
46-70-54-54
45-80-49-90
49-80-52-92
49-54-70-49

The other :
49-70-54-59
49-80-54-91
49-82-55-92
54-70-59-55

[philipma1957]

Been running 4 of S 15. Two in full mode. 2 of the 16 chip temp. show 90-92 degrees. The rest between 49-80. Airtemperatur 20 degrees. It shut down at 96. Any idieas?

Switch to low mode.

Show us the numbers.

Also before you switch.

Shows us all numbers for all  four units.

You may have poorly glued/attached heat sinks.

I have had lots of s9s. With hot boards.
So a hot board is not unusual.
Seeing all four boards on all four units
On low and high power will help us to analyze what is wrong.

[minefarmbuy]

Looks like middle boards are hot. Dead zone for cooling with two fans possibly?

I don't have one but I imagine the fans blow in? If so, maybe the middle needs a small case fan pulling at the back for short term till you dial in the machine for your racks/farm.

Start a support section thread if needed.

[BitcfinderNot]

Mashine 1 full mode

PCB
34-57-36-59
41-67-41-70
39-65-40-70
37-58-35-61

CHIP
49-72-51-74
56-82-56-85
54-80-55-85
52-73-50-76

Mashine nr 1 low mode

PCB
33-44-35-46
38-49-40-52
38-48-39-51
34-44-33-46

CHIP
48-59-50-61
53-64-55-67
53-63-54-66
49-59-48-61

Mashine nr 2 full mode

PCB
32-53-34-57
40-70-44-77
39-69-42-77
33-57-32-62

Chip
47-68-49-22
55-85-89-92
54-85-59-92
48-72-47-77

Mashine nr 2 low mode

PCB
31-32-32-44
37-48-38-50
36-47-37-50
31-42-30-44

CHIP
46-57-46-59
52-63-53-65
51-62-52-65
46-57-45-56

This is 2 of my 4 mashine.
I am used to s9i at pretty hi temperature 85-90 in summer but the S15 is shutting down at 96.Temp. room is 20 degrees. It migth be to smal innflow of fresh air in the room as i suspsect low pressure. The fans are blowing in.

[sarcheer]

Well that eBay seller was legit, just got delivered tonight. Had I waited two days I would have saved $150 as the seller lowered his prices lol. Will post unpacking pics and my review in the coming days as work permits.

So some notes from my Antminer T15 setup experience:

Took approximately 6-10 minutes on average for my T15 to start up and complete tuning/begin hashing.

I initially had a network error, which turns out to be because the T15 does not accept pool addresses with the "stratum+tcp://" prefix. You simply specify the stratum address, e.g. stratum.slushpool.com:3333

Currently consuming ~7.5 amps at 200V, so around 1500W at normal mode, hashing at 23.5 TH/s.

This T15 came with the 12/18/2018 Firmware installed which may be why the start up sequence was quicker, or because its running in a 75ºF environment.

Also, my T15 HAS the top cover, so no exposed rails here.

[Exoskeleton]

I am used to s9i at pretty hi temperature 85-90 in summer but the S15 is shutting down at 96.Temp. room is 20 degrees. It migth be to smal innflow of fresh air in the room as i suspsect low pressure. The fans are blowing in.

That's a bad sign. I have really high ambient temps in the summer. Lots and lots of flow, but I take 90+degree temps in the summer and exhaust 100+degree heat at times. This makes me think I have no hope if I buy these and try to run them through this summer. AC is not an option.

[sarcheer]

That's a bad sign. I have really high ambient temps in the summer. Lots and lots of flow, but I take 90+degree temps in the summer and exhaust 100+degree heat at times. This makes me think I have no hope if I buy these and try to run them through this summer. AC is not an option.

PCB:
29-45-32-47
32-47-37-54
30-44-38-53

Chip:
44-60-47-62
47-62-52-69
45-59-53-68

Temps for my T15 at 75ºF ambient intake temp, normal mode. You may have more overhead, temp ceiling-wise, if you go with the T15.