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1  Bitcoin / Hardware / Review: Bitmain Antminer S15-28TH/s on: January 31, 2019, 02:59:33 AM
Original (Chinese): https://www.cybtc.com/forum.php?mod=viewthread&tid=43712
English: http://www.cybtc.org/article-137-1.html

Bitmain is a technology company specializing in high-speed, low-power custom chip design and development, successfully designed and produced a variety of ASIC custom chips and integrated systems. Bitmain was founded in 2013. In the same year, it launched the first generation bitcoin mining machine of the ant mining machine series - Antminer S1. After more than five years of development, the antminer series bitcoin mining machine passed S1, S2, S3, S4 Iterations of multiple models of S5, S7 and S9, the latest bitcoin mining models are S15 and T15, which will be sold on November 8, 2018.

The Antminer S15 adopts a new 7nm chip process. The official evaluation of the S15 is durable, energy saving. Emphasizing the characteristics of "high performance, more durable, and more power saving". From the officially announced parameters, the Antminer S15 is built in. Standard and low-power mining modes. The officially announced parameters have a unit-to-power ratio of 57J/T in standard mode, and the unit-to-power ratio of low-power mode has reached 50J/T. Compared to the products in the current market, in terms of Bitcoin miners, this unit power consumption ratio has set a new record.

Antminer S15 official parameters,



Recently, the Antminer S15 has sent to Cybtc for testing. Please see the third-party independent review by us.

I. Unpacking:

Because the Antminer S15 adopts a new all-in-one and parallel fan design, the packaging box has changed from the previous generations. The previous cuboid has changed into a square-like style. The packaging material is still packaged in an industrial carton, and the box is marked manufacturer information, logistics warehousing logo, mining machine specification model and strip identification code, outer box size: 486*388*265, weight about 8.7kg.



The interior of the two pieces of styrofoam is firmly packed in the box from the upper and lower sides to ensure the safety of the mining machine during transportation. There is also a gap around the pearl foam for easy access.

Take out the styrofoam on one side to see the main body of the mining machine. The mining machine is wrapped by an anti-electrostatic bag. Compared with the box, the mining machine looks very small and only takes up about half of the box space.

The Antminer S15 changed the style of single-tube with double cooling fans as S1-S9 models, and became a dual-fan parallel single-side air intake and adopted the integrated machine design of the mining machine + power supply. The whole machine size is 279*175*221mm, weight 7.13 kg.



The Antminer S15 is small and neat, the air inlet side and the mining machine interface side are on the same side, the fan is removed from the air outlet side, and a honeycomb-shaped baffle is used.



The advantage of the all-in-one design is that the wire connection is reduced. The appearance of the mining machine is more compact, and the use and operation and maintenance are more convenient. The connection between the Antminer S15 mining machine and the power supply uses a clip-connected design, and the controller and the power board are still connected by flat signal cable.



The nameplate of the mining machine body is marked with the model number, hash rate, and identification bar code. If the bottom part can increase the anti-slip mat, it is better to strengthen the stability of the mining machine when it is placed horizontally. The mining machine supports the erect and horizontal two ways. On the rack, the miner can choose the placement method according to the size of the mine rack.



Antminer S15 infrastructure.

Note: The new mining machine is affixed with fragile stickers when it leaves the factory. Do not disassemble it by itself. The disassembly of the mining machine during the warranty period may affect the warranty!

First, remove the fan and connecting cable.

The Antminer S15 uses two cooling fan, the model is DFB380012000Ts, with a power consumption of 3.14A provides heat dissipation for the mining machine. The parallel design not only shortens the cooling air path but also reduces the wind resistance and further improves the heat dissipation efficiency of the mining machine. For the sake of appearance, the connection between the fan power cable and the control board to the power supply is fixed together with the cable tie. When the fan is removed, the connecting wires should be removed together, and Then remove the 4 connection cables of the control board and the mining board.



Second, remove the power supply.

Use the Allen key to remove the connecting piece of the power supply and the mining machine, then press the iron piece under the power outlet, and push the power module forward, compared to the 6-pin interface of the previous series of Antminer. For the power supply that needs to be plugged in, the design of the all-in-one machine provides greater convenience in operation and maintenance. The Antminer S15 is also connected to the control board to control the power supply voltage regulation line to achieve the standard and low power mode mining conversion.



The Antminer S15 is equipped with Bitmain's first 7nm BM1391 chip, which integrates 1 billion transistors. In addition to the performance improvement, the BM1391's chip package eliminates the traditional over-molding plastic package method and adopts the Exposed Die package solution. In this solution, the wafer back surface is directly in contact with the heat sink, and the heat transfer efficiency of the chip is greatly improved. It can be seen on the board that the Antminer S15 mining board is only equipped with a heat sink on the back side of the chip.



The advantage of the heat transfer efficiency of the power board is that it reduces the area occupied by the board, and more chips can be placed per unit volume. The reduction of the heat sink also makes the machine smaller and lighter. The S15 has 4 built-in power boards, each of which contains 72 BM1391 chips, for a total of 288.

Antminer S15 is equipped with a new high conversion rate APW8 power supply, which reduces the loss during power conversion during use, and uses the mining machine to save energy. The APW8 power supply provides a 16.32-20.04V output, and the power supply works well. It uses two 40BH-12E 12V 0.35A fans for power supply.



The area of ​​the Antminer S15's control board is further reduced to 115mm*95mm compared to the previous series.



Antminer S15 dismantling full picture.



Antminer S15 and S9 size comparison.



II. Antminer S15 installation:

The design of the Antminer S15 all-in-one machine reduces the link of the power line of the plugging and unloading machine. As long as it is placed in the rack, plug in the power cable and the network cable to complete the hardware installation.

Find the mine IP address. Antminer S15 mining machine is automatically assigned IP mode, you can enter the local router to view the IP address named "antMiner".



Or use the ant official mining machine management software BitmainMinerTool to scan the IP address of the current mining machine. You can also use the management software to set the mining pool address and worker name, update the firmware, etc. When the number of mining machines is large, you can also use the mining machine. IP report button to find the IP address of the mining machine.



To view the real-time status of a single mining machine, you need to enter the mining machine control page. First, enter the mining machine IP into the control page home page, and then enter the default user name and password (the default is root) to enter the mining machine control page.



The new mining machine needs to modify the name of the mining pool and miners, click on the “Miner Configuration” page to modify the main mining pool address and worker name, and modify the two alternate mining pool addresses and miners' names as needed. Antminer S15 has built-in standard and low-power mining modes, so you can easily select any mode mining on this page according to your needs. After each setting is completed, click “Save&Apply” to save the settings and apply.

After saving, the miner will restart the mining procedure. After about a few minutes of normal operation of the mining machine, you can enter the mining operation interface “Miner Status” to check the operation of the mining machine, including running time, hash rate, Chip status, operating frequency, PCB board and chip temperature, fan speed and other parameters information.



III. Review:

The Antminer S15 has standard mining mode and low power consumption mode. Therefore, we tested the two modes for 24 hours respectively. The test environment temperature is about 17 degrees, and the noise value is around 36 decibels.

After the mining machine is turned on, the fan runs at full speed, the power consumption of the boot is about 25W and further increases slowly, and the noise level is up to 81.2 dB.



Standard mode test

Power consumption: The miner's chip is fully operational, and the control page power is 28T. The measured power consumption of the miner is 1610-1620W, which is in line with the officially announced 1596W ±7% level.

Noise: Due to the low ambient temperature, the number of fan rotations is basically stable at around 3120 rpm. The noise value of the operating environment is measured to be 76.5 decibels. The distance of the mine is 27.7 meters, and the noise level is properly controlled.

Temperature: Antminer S15 has a total of four mining boards. There are four temperature-sensing modules distributed on each calculation board. The chip temperature is at least 44 degrees and the highest is 78 degrees. Thanks to the Exposed Die package, the outlet temperature is about 42 degrees. The power outlet temperature is about 28 degrees.



Because the Antminer S15 adopts the one-piece design, We also test the contact temperature of the power supply and the mining machine's power board. It can be clearly seen that the temperature values ​​of each point are different.



Hash rate: After 24 hours test in the btc.com mining pool, the average hash rate of the Antminer S15 in 24 hours was 28.56 TH/s. Thus calculate the unit energy efficiency ratio = 1620W / 28.56 ≈ 56.72W / T, and the official published data 57 J / T consistent.



Low power mode test

Power consumption: After checking the option behind “Low Power Mode” on the Antminer S15 Pool Settings page and saving the application, the miner can run in low power mode. After the power of the mining machine control page reaches 17T, the measured power consumption is up to 836.6W, and the running data meets the official data of 775W ±7% - 900W ±7%.

Noise: As the power and power consumption are reduced, the fan speed is basically stable at around 2400 rpm, the measured operating environment noise value is 77 decibels, and the distance measured by the mining machine is about 66 decibels at a distance of 2 meters. The noise level and the standard mode. At the same level.

Temperature: The four mining board chips have a minimum temperature of 25 degrees and a maximum of 62 degrees. The outlet temperature is about 30 degrees, which is slightly lower than the standard mode. The temperature of the power outlet is about 20 degrees.



Contact point temperature value between the power supply and mining machine mining board.



Hash rate: After 24 hours of testing in the btc.com mine, the average 24-hour power was measured at 17.5TH/S. Thus calculate the unit energy efficiency ratio = 836.6W / 17.5 ≈ 47.8W / T, lower than the official published data 50 J / T.



IV. Summary:

Two built-in mining modes. The power consumption per unit of power in low-power mode is lower than 50W/T, which is better. The lower the power consumption ratio, the lower the price of the shutdown.
One machine design reduces the wire, beautiful and convenient.
Exposed Die package improves heat dissipation, increasing the number of chips per unit volume and reducing heat sinks, reducing overall weight.
The new AWP8 power supply is used, easy to assemble and disassemble.
The machine noise is lower and the temperature is lower than other mining machines.
The calculation power of the whole machine is stable and fluctuating.

Finally, exposed power connectors may cause problems if touch the iron on the shelf. Maybe it can have improvement.

The Antminer series mining machine has evolved from S1 to S15, and the computing power has evolved from S180's 180G/360W to S15's 28000G/1600W. This is not just a digital evolution, but also the ups and downs of the Bitcoin industry. The mining machine is upgrading. Bitcoin is advancing, leaving many stories in the chain, the currency circle and the mining ring than the ten-year journey of holding the currency. In the two-year life cycle of S9, S9's bitcoin mining machine market share is far ahead, and currently in the market background of the rising bitcoin computing power, the depressed bear market and more new mining machines, Whether the ant S15 can create a new benchmark for the bitcoin mining machine, time will give us the answer.

More miner and crypto reviews on: cybtc.org

Telegram:https://t.me/joinchat/LgPYnE1vPpXqYDVpPaQyxw

Discord:https://discord.gg/RfCZMNY
2  Economy / Computer hardware / Re: Group buy Whatsminer M10 USD 885/set on: January 14, 2019, 01:59:44 AM
So I see some red flag here.

This is your first post in over a year, at least it is still somewhat inline with your previous posting history. Your password was also recently changed.


Now for the miners, anyone currently looking can buy these models from Pangolin for 799USD, and I believe they even give you a promo code for a slight discount. There are 2 models available. 1 model is more expensive.



Perhaps you are a legit representative, and your company provides these services. You should maintain a service thread to promote all aspects of your business. This way you can use this board for specifically for the hardware you are selling. That's just my opninion.

You are fine to post the product here, but you should also post images and payment information for that product. Then feel free to promote and link to your service thread.


Thank you for your good advice.

I saw Pangolin at $1022.

This ID has always been used by me. We have been serving Chinese miners for 5 years. Our website cybtc.com and English station cybtc.org have not changed and have been updated daily. Last year, we mainly focused on the development of mining pools.

In addition, we are in Yunnan, there are many hydropower stations, and we will put photos of the mines later.

Cybtc Review: MicroBT Whatsminer M10

English:http://www.cybtc.org/portal.php?mod=view&aid=124

Chinese:https://www.cybtc.com/thread-38022-1-1.html




Your are very close to being tagged a scammer for that statement.

Here is the deal. Pangolinminer has the 31th model for 799-10  = 789+90 to ship to USA this is about 880.

You are very clever to say you saw pangolin for 1025 it is true but that is for the 33th model.

Not the 31th model you are selling.

For once I would like to see a guy say yeah phil you are correct I was being sly with that statement as I knew it was for the better model.

To all reading this seller is either clever and said a half truth with that statement or completely innocent and made a mistake .

Which is why I did not tag him.
I will say I have purchased

1 m3
1 m10  33th
2 m10 31th

From pangolinminer.com with no issues.
And no clever statements like : I saw 1025 for a m10 on pangolin.




Your suggestion "You are fine to post the product here, but you should also post images and payment information for that product. Then feel free to promote and link to your service thread." I will execute

If you search for any of our information on baidu or google you will see what our website has done for 5 years.  The first report of many  miners  is from cybtc.com ,Our cumulative sales of tens of millions yuan mining machines have always been based on credibility
3  Economy / Computer hardware / Re: Group buy Whatsminer M10 USD 885/set on: January 13, 2019, 02:29:19 AM
...deletion

How can I do it without being deleted?
4  Economy / Computer hardware / Re: Group buy Whatsminer M10 USD 885/set on: January 13, 2019, 02:27:40 AM
So I see some red flag here.

This is your first post in over a year, at least it is still somewhat inline with your previous posting history. Your password was also recently changed.


Now for the miners, anyone currently looking can buy these models from Pangolin for 799USD, and I believe they even give you a promo code for a slight discount. There are 2 models available. 1 model is more expensive.



Perhaps you are a legit representative, and your company provides these services. You should maintain a service thread to promote all aspects of your business. This way you can use this board for specifically for the hardware you are selling. That's just my opninion.

You are fine to post the product here, but you should also post images and payment information for that product. Then feel free to promote and link to your service thread.


Thank you for your good advice.

I saw Pangolin at $1022.

This ID has always been used by me. We have been serving Chinese miners for 5 years. Our website cybtc.com and English station cybtc.org have not changed and have been updated daily. Last year, we mainly focused on the development of mining pools.

In addition, we are in Yunnan, there are many hydropower stations, and we will put photos of the mines later.

Cybtc Review: MicroBT Whatsminer M10

English:http://www.cybtc.org/portal.php?mod=view&aid=124

Chinese:https://www.cybtc.com/thread-38022-1-1.html


5  Economy / Computer hardware / Group buy Whatsminer M10 USD 885/set on: January 11, 2019, 03:31:27 AM
Cybtc 2019 New Year Sales Whatsminer M10

Whatsminer M10, Hash rate: 31TH/s, Power consumed: 2100 W,
Mining Machine Price: 25mbc (The btc amount depended on exchange rate)

Participation mode

1. Direct overseas offering

Minimum amount: 1 set
Price: USD 885/set
Ordering mode: contact sales staff for ordering
Delivery mode: FEDEX, DHL or UPS, with freight charge borne by customer
Cost: cost of mining machine + freight charge
Payment mode: BTC

2. Mining machine hosting

Minimum amount: 1 set
Price: USD 885/set
Power consumption for Calculation: 2.1KW/H/set
Electric charge: 575 Chinese Yuan monthly(0.38yuan/KW)
Guarantee deposit for electric charge: USD 510/set
Delivery charge :USD 15/set
Initial Cost: cost of machine + Delivery charge + Deposit of electricity(for the first 6 months) =USD 1410
Follow Cost: Including potential maintenance cost + Electricity fee, from seventh month, the customer needed to prepay the 6 monthly = USD 510/set
Ordering mode: contact sales staff for ordering
Service: mining farm hosting directly after purchase of mining machine.
Revenue settlement mode: BTC. (Revenue is not calculated in case of shutdown/power failure)
Payment mode: BTC

More details see
http://www.cybtc.org/article-131-1.html

Customer Services,
Telegram: https://t.me/joinchat/LgPYnE1vPpXqYDVpPaQyxw
Discord:https://discord.gg/RfCZMNY

Chinese Channels,

WeChat subscription:彩云区块链
Official wechat:caiyun3250
Official Weibo:https://weibo.com/cybtc
QQ Group:283569493
Customer service QQ No.:313688150

Find us on,
English Official Web Site:www.cybtc.org
Chinese Official Web Site:www.cybtc.com
Official email:service@cybtc.om

Pictures:https://bitcointalk.org/index.php?topic=5096141.0
6  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][MONA] Monacoin LAUNCHING 2014/01/01 0:00 GMT on: December 09, 2017, 12:58:04 PM
MONA POOL(Chinese)  http://mona.cybtc.info/  Wink

We come from Cybtc.com, created in 2013
7  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][DASH] Dash (dash.org) | First Self-Funding Self-Governing Crypto Currency on: February 08, 2017, 01:47:13 PM
CyBTC Dash Pool www.cybtc.info have completed the 12.1 upgrade

Now have 50 Gh/s Wink
8  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][DASH] Dash (dash.org) | First Self-Funding Self-Governing Crypto Currency on: February 06, 2017, 06:11:22 AM
Greetings from China Smiley

 I'm the owner of cybtc.com which is a miner-oriented media/forum,created in 2013.

We set up dash exclusive areain in our forum, released a large number of dash articles and forum activities

After the recent efforts of the team and debugging,February 4,We opened the cybtc dash pool: www.cybtc.info

Welcome friends from all over the world to join

Look forward to recommendation of  DASH core team



pm'ed you guys
great to have u hear
i know u are in touch with alexy - great forum - dash peeps are having a great time with you guys  Roll Eyes


Thank you, we will continue to work hard Cool
9  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][DASH] Dash (dash.org) | First Self-Funding Self-Governing Crypto Currency on: February 06, 2017, 01:29:55 AM
Greetings from China Smiley

 I'm the owner of cybtc.com which is a miner-oriented media/forum,created in 2013.

We set up dash exclusive areain in our forum, released a large number of dash articles and forum activities

After the recent efforts of the team and debugging,February 4,We opened the cybtc dash pool: www.cybtc.info

Welcome friends from all over the world to join

Look forward to recommendation of  DASH core team

10  Alternate cryptocurrencies / Mining (Altcoins) / Re: Pinidea Dr Series Ver2 Dash X11 Miner Christmas Promotions on: December 10, 2016, 02:30:44 PM
Dash is one of coins I would be interest in investing in the future.

I'm interest in BAIKAL x11 900 in your Chinese website(if the specification is real). it have double power than Dr V2, while electrical cost only around 220W. and it seems can support 6 algorithms. interesting.

But its price is almost 4 btc, which so high, you sure about the price making?

 

This Promotions is to Pinidea X11

BAIKAL x11 900 is also have Promotions :Buy 4 get 1 free

so BAIKAL x11 900 is not  4 btc each Smiley


Buy four and get one, it almost cost me an arm and a leg! could there be some possibility to get just one at this price? Smiley




no,Only to buy a 4 to send one Smiley
11  Alternate cryptocurrencies / Mining (Altcoins) / Re: Pinidea Dr Series Ver2 Dash X11 Miner Christmas Promotions on: December 10, 2016, 01:16:52 AM
Dash is one of coins I would be interest in investing in the future.

I'm interest in BAIKAL x11 900 in your Chinese website(if the specification is real). it have double power than Dr V2, while electrical cost only around 220W. and it seems can support 6 algorithms. interesting.

But its price is almost 4 btc, which so high, you sure about the price making?

 

This Promotions is to Pinidea X11

BAIKAL x11 900 is also have Promotions :Buy 4 get 1 free

so BAIKAL x11 900 is not  4 btc each Smiley

and This Pinidea Promotions is independent,1BTC Pinidea X11 Miner Can be shipped immediately,Global Shipping free

If you are interested you can place an order here:http://www.cybtc.org/plugin.php?id=it618_scoremall:scoremall

If you have questions you can ask here:http://www.cybtc.org/thread-7719-1-1.html or This paste

We've been selling miners  for many years,you can see this in our website and the ID of bitcointalk

My English is not good but our credibility is the best Smiley
12  Alternate cryptocurrencies / Mining (Altcoins) / Re: Pinidea Dr Series Ver2 Dash X11 Miner Christmas Promotions on: December 09, 2016, 01:09:39 AM
1 BTC each,include shipping cost,Limited 60 units

Hashrate:≈475M
power wall:≈307W

Cybtc evaluation:Pinidea Dr2 X11 DASH Miner:http://www.cybtc.org/article-96-1.html

Best of Luck with your sale but at my electric rates, this thing only generates $2 a day and with X11 difficulty only going to get worse, this thing is almost like buying an Antminer S5 in the near future.



thank you for your suggestion
13  Alternate cryptocurrencies / Mining (Altcoins) / Pinidea Dr Series Ver2 Dash X11 Miner Christmas Promotions on: December 08, 2016, 09:39:44 AM
1 BTC each,include shipping cost,Limited 60 units

Hashrate:≈475M
power wall:≈307W

Cybtc evaluation:Pinidea Dr2 X11 DASH Miner:http://www.cybtc.org/article-96-1.html



14  Economy / Service Announcements / Re: The official information resource for BitFury Group on: March 19, 2015, 12:59:36 AM
What is the relationship between BitFury and Ghash, BitFury and CEX.IO?

Cex.io is a sub-project of Ghash, as indicated on their web page https://ghash.io
Ghash is a former customer that used to buy BitFury miners for its own usage and for Cex.io. Cex.io has also used a lot of miners from other manufacturers.

Thanks for your answer
Ghash belong to BitFury?
or Ghash once belonged to BitFury, Why separated?
15  Economy / Service Announcements / Re: The official information resource for BitFury Group on: March 15, 2015, 01:56:23 AM
What is the relationship between BitFury and Ghash, BitFury and CEX.IO?
16  Economy / Service Discussion / Where is the Friedcat Co founder of ASICMINER? on: March 13, 2015, 09:15:40 AM
   In the start of 2015, bitcoins are not going well. Bter and KipCoin had been stolen, there is no processing scheme until now.Years later, the Friedcat lost again, complicated plot.

    Friedcat is one of the myths of bitcoin world in China .It  used  to monopolize  30% of the whole network power.the  stock of Friedcat is highly recommended by a Genius in the network, he claimed that :you can purchase the stock arbitrarily when the price below 7 BTC .Though, The stock seems to be was a real lie, but  it can prove Friedcat is very hot the  from one side. The whole story:...


Details:http://www.cybtc.org/article-75-1.html
17  Local / 挖矿 / 怎么样能在文字背后加超链接,而不是直接显示链接地址? on: October 12, 2014, 04:07:41 AM
这样可以吗

这样?=http://www.cybtc.com/
18  Other / Archival / Re: Pictures of your mining rigs! on: September 24, 2014, 02:04:41 PM
LK 1.5T Bitcoin miner

Power on wall : 1100w~~
Hash rate : 1.5TH/S~~









19  Other / Archival / Re: Pictures of your mining rigs! on: September 21, 2014, 01:38:54 AM
Rock Miner:







20  Bitcoin / Hardware / Re: btcgarden-AM-v1 down to $0.53/GHs. In stock for international selling! on: September 20, 2014, 03:12:05 PM
BTC Garden AM-V1 Bitcoin Miner Evaluation by Cybtc: http://www.cybtc.org/article-48-1.html





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