Topic: Bitmain will be releasing S15 and T15 on 8/11/2018 (Read 31497 times)

To provide an update on the reliability side:

Both my T15's have been hashing away at 23.3 and 23 TH/s without problem for a few months now. Consuming 1475 W at 23.3 TH/s for an efficiency of just under 64 W/TH. This is at 208V.

Ahhhh, OK thanks!!

You need to look at other threads where they have extensive coverage... The M-series are from microBT and marketed as the Whatsminers, one distributor of them is Pangolinminers.

So far because the M20's are brand new and have not yet been delivered their thread is in Speculation.

What are the M20's??  Didn't see that when I checked Bitmain this morning.

They know how to work the sales.

I am sure many are hot to buy gear.

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My T15 arrived running on low setting doing 20.9 th at 5 amps or 240 x 5 = 1200 watts

so this gear does 1200/20900 = 57.5 watt a th  that is much better then the specs

I will be looking for another meter to confirm that.

So the pdu meter reads 5 amps  and 5 x 240 = 1200

my more accurate meter read 5.45 amps and 5.45 x 240 = 1308 watts

so 1308/20834 = 62.8 watts a th pretty good but not the less accurate reading  numbers.

So no gear in site.

m10's = sold out
s15's = sold out
t15's = sold out

m20's = preorder
s17 = ?
t17= ?

oh my power reads 239-241 volts this will be moved to the Clifton Solar array on tues which provides 228 volts and I have 1 protection transformer left over which will do 220 volts.

All in all the t15 was a good price and on low speed is good with power at 62.8 watts

No info from fedex on trump tax I will post an update if they hit me with it.

Still same as before, the s9's and the dr5's  that's it.

it is about 8 am monday morning in china why not take a look at the website

Any news when they'll have stock? Any chance before the 31st?

Yea, bitmain is sending units out.

I also received a shipping notice on my T15.  Should be here Mon or Tues.  Hope I have better luck than with the S15.  Comes in 2 bad hash boards, send it to CA, Bitmain send me a older (looked used) unit and it had a bad hash board.  So it's off to the repair center.

Then I start getting E-Mails that my coupons are ready to expire, use them now..  Problem is there is nothing to by with them!!  Everything is out of stock!!

I got a shipping notice for my t15.
I think it will come on Tues the 26th

It was supposed to be shipped April 1-April 10

I made these 3 post yesterday they were deleted this morning. Not angry in the least they were pulled as I feel that my gear was shipped because I posted these yesterday. Since gear is now on the way and shipped early these posts don't have to stay.  I do wonder has anyone esle had there gear shipped yesterday?

To be clear I realize I should have posted these in this thread not Hagss review thread.
I do wonder if  bitmain read them and decided to ship some gear out yesterday.

Found the user and one of the posts I was referencing above ^.

Mine went to California.

I think the guy who had a couple PSU's die said it was a week turnaround from China.

Got my S15 in last week, 2 dead hash boards, off to CA for repair.  Anyone have any idea on the turn around time?

Nice website.

Maybe I would send some s15s.

We got about 270 x S15 miners and we run them at 208v and 240v without single issue so far.

More S15 miners are coming our way. We are in Nevada so you can visit us anytime if someone wants to check in person. We are very transparent. Although this was March batch.

Also there are 2 models
S15 - 28 THs
S15 - 27 THs.

They are about the same in power consumption little bit lower.

Gets to a point were an extra unit could circumvent the loss as there is no way to recoup time but then spare parts are essential for these machines anyway.

I have a t15 on order and I should be safe up in clifton,nj  to run the s15 or the t15

but warranty of gear is critical for mining.

I am no longer tiny garage miner I have 530th + 40th = 570th  For BTC and I have 7.6 gh for LTC

But I did get a bad m10 I got parts today and now will go back to clifton to see if it is repairable.

The m10 was about 890 usd and right now it is hashing under 2th vs 31th

I got about 30 usd in earnings which is a net down of 860 plus I purchased 398 in various parts for the other six machines.

so that is 1258 in the hole or about 1 s15

when you buy the newer gear  and it goes down it is costly.

my share of the coins earned the last 2 weeks was 660 usd no cost for the power  but 1 good unit going down set me back
1 full month .   and even if I fix that m10  and the loss drops to 400 in spare parts it is an 8 day set back.

So for me to buy  3 or 4 s17's or s15's   it is a tough choice.

@ connerM that makes it easy for me to get some s15 or s17 as we are running at 228 volts in clifton

That was me. I tried 2 units at home back in January on separate 30amp 240v circuits, one in my basement and one in my garage. These are circuits I ran S9's on all last winter. Both S15's PSU's failed or fault tripped resulting in no power at slightly above 240v. My multimeter tests those circuits around 240.8v on average but they can vary +/- a couple of volts. One S15 failed almost immediately, within an hour, and the other ran for around 10 hours before crapping out. Both PSU's were noticeably hot prior to failure. I suspect the basement unit failed first due to the ambient (around 60f) being warmer so it over heated more quickly. The garage unit ran longer (ambient around 25f). Both units were returned to Bitmain CA under warranty repair tickets and were replaced directly from China in about a week.

We currently have 43 S15's running at the commercial farm on 208v, some for nearly 2 months, without any failures or issues though we did get one unit that had a bad hash board. Bitmain also replaced that unit under warranty in about a week.

I would not attempt to run anymore units at close to 240v without a step down transformer. Other than that, they have turned out to be fine gear. I have no complaints. They are all 28th/s units. Collective average for 43 units is 1.2Ph, so all machines are running very close to spec at 208v and 50-60f ambient mining room temp. Curious to see how well they hold up a couple of months from now once our mining room starts to get hot. We do intend to switch them into LP mode once the ambient starts getting into the 90's and mine them like that during the course of the summer.

One note - all 3 of our warranty replacement units seem to have come out of China stock and do not have the power rail covers, they are the open rail design. All other units we received have the rail covers.