Bitmain Ant S9 Bitcoin Miner In-Depth Review

The Ant S9 Bitcoin miner machine is released by Bitmain in June. This miner machine from Bitmain makes use of the latest generation of the BM1387 chips. These ASIC chips were developed explicitly for the Bitmain mining machines by the engineers at Bitmain. The BM1387 chip comes with a computing power of 11.85 TH. The total power consumption of this ASIC chip is about 1172 W.

The fifth generation of the BM1387 chip is a really powerful one. It is developed independently by Bitmain. It is manufactured using the 16 nm FinFet process from TSMC. It makes use of a fully customized design. It is possible to achieve a computing power as high as 74 GH/S with this ASIC chip. This BM1387 chip requires a core voltage of 0.4 v for its operation. The total power consumed by the BM1387 chip is about 0.08 W/GH/s. All the other ASIC chips from Bitmain were consuming power higher than this chip. It consumes the lowest power among all their chips

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Official Parameters of the Ant S9 Bitcoin miner machine

Now, we will have a look at the different specifications of the Ant S9 Bitcoin miner machine. The rated hash rate of the Ant S9 Bitcoin miner machine is around 11.85 TH/s. The total power consumed by the Ant S9 Bitcoin miner machine is around 1172 W. You can expect a +/-12 percent deviation from this value. This miner makes use of the APW3-1600W power supply. The AC to DC efficiency of this supply unit is around 93 percent. This efficiency is at 25 degrees Celsius room temperature. The power efficiency of the miner machine is around 0.1 J/GH. The deviation will be around 12 percent. The rated voltage of the Ant S9 Bitcoin miner machine is 11.6 V to 13.0 V. They have used 189 numbers of BM1387 chips in the Ant S9 Bitcoin miner machine.

We will do an evaluation of the Ant S9 Bitcoin miner machine and see if the machine meets our expectations.

You can see the out of the box pictures of the Ant S9 Bitcoin miner machine here. You will be able to view the 5-layer carton box. It is as per the industrial design. You will be able to see the symbols for the logistics and warehouse on the outside of the carton box. You will also find the barcode of the commodity, the label showing quality inspection, and the logo of the brand on the carton box.

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You will be able to find an Ant S9 Bitcoin miner machine along with a double-sided English instruction manual inside the box.

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You can see the side view of the Ant S9 Bitcoin miner machine here.

If you have a look at the top of the Ant S9 Bitcoin miner machine, you can view the 3 computing power boards of the mining machine. You will be able to see 3 PCI-E6 pin power sockets on each of these 3 computing power boards.

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If you have a look at the front side of the Ant S9 Bitcoin miner machine, you can view the SD card socket. You can also see the rest button, socket for the Ethernet cable, and the status indicator lights. The other things that you can see here include the logo of the Antminer, QC label, barcode, and the fan on the front side.

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You can see a warning sign on the other side of the Ant S9 Bitcoin miner machine. There will be a fan at the backside of the miner machine.

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The chassis of the Ant S9 Bitcoin miner machine is made up of aluminum alloy. The S7 miner machine from Bitmain also uses the same chassis material. The machine has an integrated surrounding. There are grooves provided in the chassis of the Ant S9 Bitcoin miner machine to insert the computing power boards. You can use it to place the power boards.

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You will be able to see one heat sink each for each of the ASIC chips on the boards. So, overall, the design will look very tight.

You can see the various physical parameters of the Ant S9 Bitcoin miner machine below.

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Now, we will see the installation and the debugging part of the Ant S9 Bitcoin miner machine.

You need to check and ensure that the heat sink on the boards is not in the fallen condition before starting with the installation process of the Ant S9 Bitcoin miner machine.

We will be using the Antminer APW3-12-1600-B2 power supply unit for all the tests. It is a 1600 W power supply unit with a good conversion rate. It will provide the necessary power for running the Ant S9 Bitcoin miner machine.

You need to connect the hash board with the power cable first. You will be able to locate 3 PCI-E6 pin power interfaces on the 3 hash boards of the miner machine. You need to ensure to use an 18 AWG wire for these connections. If you use a wire of lesser gauge, then it will affect the working of the miner machine.

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You can also see the PCI-E6 pin interface on the controller boards. You need to provide the power to the controller board through this port. Once you are done with this connection, you can connect the Ethernet cable to the Ant S9 Bitcoin miner machine. The other end of the Ethernet cable needs to be connected to the router.

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You can see the actual wiring diagram for the Ant S9 Bitcoin miner machine here.

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The method of connecting the power supply to the miner machine is the same as the Antminer S7 unit. If you are planning to use two power supplies, then you need to ensure not to use cross-connection. It is clearly mentioned in the official documentation of the Ant S9 Bitcoin miner machine. You can see the right way of connection in the picture below. You can see the Ant S9 Bitcoin miner machine and the connection details here. This image is from the official documentation of the Bitmain.

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Now, you need to switch ON the power of the Ant S9 Bitcoin miner machine. Once the miner machine gets the power, it will assign the IP address for the miner automatically. The machine will automatically scan the latest Ip address, and it will go to the background. There are various ways to find the IP address of the miner machine. You can use any of those techniques to find the IP address of the Ant S9 Bitcoin miner machine.

You need to enter the IP address of the Ant S9 Bitcoin miner machine in the browser first. Now, you will have to enter the username and the password details for logging in. If you are using the Ant S9 Bitcoin miner machine for the first time, you can enter root as the default username and password.

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Now, you need to set up the mining pool. We will be using the Antpool Bitcoin mining pool for this time. So, you can configure the settings for the Antpool.

 

 

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Once you are done will all the settings in the Ant S9 Bitcoin miner machine, the miner will start with its normal operation in 10 seconds. You can view and monitor the real-time status of the Ant S9 Bitcoin miner machine on the background page.

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The status indicator lights when the Ant S9 Bitcoin miner machine is running normally is shown here.

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Now, we will move to the different tests on the Ant S9 Bitcoin miner machine. The level of noise in the indoors is around 38 dBa during this test. The measured value of ambient temperature is around 29 degrees Celsius. The default frequency of the Ant S9 Bitcoin miner machine is 550. The miner machine is made to run for more than one day. We were able to get a computing power in the range of 11.6 T to 12 T. So; the values were fluctuating. The average computing power of the Ant S9 Bitcoin miner machine is around 11.84 T. If you have a look at the computing power curve of the miner machine, you can see that there are no major fluctuations in power.

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The total power measured is around 1317 W for the Ant S9 Bitcoin miner machine.

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Now, we will perform the overclocking test for the Ant S9 Bitcoin miner machine. The default frequency of the mining machine is 550. We will increase it to 568.75, which is the third gear. The miner is made to run for an hour, and the computing power is around 12.2 to 12.3 T during this test.

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The total power measured is around 1362 W for the Ant S9 Bitcoin miner machine.

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Now, we will see the level of noise in the Ant S9 Bitcoin miner machine. The speed of rotation of the fans in the miner is between 4320 pm to 4560 rpm. During this time, the level of noise is in the range of 81 dBa to 86 dBa when measured at a distance of 20 cm from the miner.Antminer S9 23

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We observed a noise level of 76 dBa when measured at a distance of 1 m from the miner machine.

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You don’t have to make any adjustments in the speed of rotation of the fans in the miner. The miner will automatically adjust the fan speed during its operations. This adjustment is based on the temperature of the miner machine. If you are running the Ant S9 Bitcoin miner machine at night in low temperatures, the speed of rotation of the fan will be as low as 3000 to 4000 rpm. During this time, the level of noise will be around 72 dBa when measured at a distance of 20 cm.

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Now, we will measure the temperatures at different miner parts. The Ant S9 Bitcoin miner machine is designed in such a way that the heat generated by the machine is removed automatically with the help of the inbuilt fans. The measured temperature value on the background chip is around 63 degrees Celsius. The temperature in the chassis is around 36 degrees Celsius.

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The air intake temperature is around 32.8 degrees Celsius when measured on the air intake side.

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The air outlet temperature is around 44.9 degrees Celsius when measured on the air outlet side.

Summary of Evaluation of the Ant S9 Bitcoin miner machine

Now, we will summarize our whole evaluation findings.

  1. The measured computing power of the Ant S9 Bitcoin miner machine is matching with the specification shared by the manufacturer. When we performed the long duration test, the average computing power is around 11.84 T. There are no major fluctuations in the computing power curve of the Ant S9 Bitcoin miner machine. It is a stable one. If you observe the curve, you will be able to notice that there is good space for frequency hopping. If you are planning to start a mining farm, you can definitely consider this Ant S9 Bitcoin miner machine. It comes with great computing power. If you take the total computing power of 86 miner machines, it can go up to 1P.
  2. if you see the power consumption, the measured value is bigger than the specifications shared by the manufacturer. When the Ant S9 Bitcoin miner machine is operated in the default frequency, the computing power of the machine is around 11.84 T. the total power consumption is around 1317 W. Even with higher power consumption, the performance of the Ant S9 Bitcoin miner machine is currently the best among all the miner machines. It is when you compare the power-to-power ratio. It helps to save a lot of power. Thus, it will be one of the leading machines in the world.If you consider the south side, the temperatures are pretty high in this region. Whenever there is a 10-degree rise in the room temperature, the total power consumed by the Ant S9 Bitcoin miner machine will increase by 50. It is true the other way also. So, you can expect some slight variations in the measured values, and they will vary for different regions. It is due to the temperature levels at that place. So, you need to take the temperature of your miner’s location into account to know the temperature of the miner machine during its operation.
  3. One of the major issues with the Ant S9 Bitcoin miner machine is the level of noise. The noise level of this miner machine is the highest among all the Antminer machines. This machine comes with a big air duct. We can also see a great difference in temperature before and after the fans. The fans in this miner are really loud. It would be really nice if they can replace it with a low noise fan of the same performance.

Appendix

You need to follow 3 steps to upgrade the firmware of the Ant S9 Bitcoin miner machine.

  1. You need to go to the official site of the manufacturer and download the latest firmware for the Ant S9 Bitcoin miner machine.
  2. You need to go to the upgrading interface. You can now select the downloaded file. It will be in zip format. You don’t have to unzip it for upgrading.
  3. Now, you can start the upgrading process.

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It will take around 2 to 3 minutes to complete the upgrading process. You need to ensure that there is no power outage during this upgrading process. Otherwise, it will corrupt the firmware of the Ant S9 Bitcoin miner machine. During the upgrading process, you can see the miner stopping first and starting twice. Once the upgrade is successful, the miner will return to its background interface.

Now, we will have a look at the detailed explanations for the common interfaces that are in the background.

  1. IP Settings for the miner machine.

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  1. You need to change the password of the Ant S9 Bitcoin miner machine to enter the background.

The specification of the Cooling Fan of the Antenna S9 is updated 

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The Ant S9 Bitcoin miner machine makes use of a 4-pin cooling fan for removing the excess heat from the system. The diameter of the fan is 12 cm. You can see one fan on the front side and the other on the backside.

The official specification of the fan is given below. This fan is from the Delta company. You can get this fan from the ta treasure if you need one. The model of the fan is QFR1212GHE. It makes use of 4 wires, and there is a connector at one end. The size of the fan is 12 cm x 12 cm x 3.8 cm. It requires 12 V DC for its operation. The current rating of the fan is 2.7 A. The maximum speed of rotation of the fan is 6000 rpm. The total air volume is 210.38 CFM. The noise level of the fan is around 64 dBa. The wind pressure specification of the fan is 21.6 mm H20.

 

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