ASIC miner repair guide and tutorials

Antminer Z11 Profitability The Antminer Z11 is used to mine Zcash and different forms of cryptocurrencies that rely on the Equihash algorithm. Bitmain assures that the new chip is often more compelling than its predecessor, the Antminer Z9. Bitmain announced their new model immediately before the deal, which they did with the Antminer Z11 . Earlier, Bitmain reported the arrival of another model for mining Equihash-controlled coins, and the company clarified that the chip would be superior to past Z9 miners. According to the manufacturer, the Antminer Z11 has a hash rate of 135ksol/s. At the same time, the efficiency of this miner reaches 10.50 j/ksol/s. In addition, the Z11 miner relies on a 12-nanometer chip that utilizes bare die throwing technology for optimal heat scattering. This allows for a 60% reduction in electricity costs when using the Antminer Z9 for inspections. This time, Bitmain chose not to stick to the detailed description of the item and made an unusual statement tha

How to use online debugging PICKit 3.5 programmer to reprogram the hash board PIC file? The PIC chip (such as PIC16F1704, PIC12F1572) on the Antminer hash board is one of the very important parts, which is used to store the chip and voltage data of the hash board. If the data of the PIC chip is damaged or lost, the hash board will not work, and the entire miner will not be able to operate normally and profitably. The in-circuit debugging PICKit 3.5 programmer with firmware self-recovery function can be used to re-program the PIC file of the hash board. Next, I will explain in detail how to use the PICKit 3.5 programmer to burn the PIC file of the hash board? 1. Before starting PIC file burning, you need to download and install the burning driver:  MP LABX-v3.10-windows-installer.exe 2. Open MPLAB IPE V3.10, and select the PIC chip that needs to be reprogrammed. Here we will take PIC12F1572 as an example. 3. Click File to select the corresponding program, and then click Settings. 4. Ent

How to correctly choose the two modes of the Antminer test fixture? The two modes of the Antminer test fixture mainly include the hash rate test mode and the chip test mode, which are used to detect the hash board's running status accurately. Among them, the hash rate test mode is to test the hash board with a low hash rate or does not work, and the chip test mode is to test the hash board chip to report "0" or report that the chip is incomplete. In the process of use, if the two test modes are confused, it will be impossible to detect the failure of the hash board, and the hash board will be damaged. In the series of Antminer test fixtures , the L3 series, S9 series, and 11 series have only one mode, namely hash rate test mode; while the 15 series, 17 series, and 19 series have two test modes, namely hash rate test mode and the chip test mode, in which the 15 series and the 17 series have the same setting method. Now, I will explain how to select the hash rate test mode

How to test the voltage and ground value of the power supply unit of the Antminer S17 hash board? Antminer S17 hash board Antminer S17 hash board power supply unit oltage and ground value test of Antminer S17 power supply unit 1. 18V voltage test Test method : Fluke 17B+ multimeter DC gear, the red test lead is placed on the positive pole of the hash board power interface, and the black lead is placed on the negative pole of the power interface. 2. PIC chip voltage test There is a black dot on the PIC chip, that is the 1st Pin. Test method : Fluke 17B+ multimeter DC gear, measure whether the 9th Pin of the PIC chip has a voltage output; under normal circumstances, the voltage is about 3.3V. If there is no 3.3V, please check the connection status of the hash board test line to see if the hash board is normal. If it is not normal, you need to re-program the PIC. 3. MOS tube voltage test There is a white dot next to the MOS tube, which is the 1st Pin. Therefore, the voltage of the MOS tub

How to test the voltage and ground value of the Antminer S17 Pro hash board power supply unit? Antminer S17 Pro hash board Antminer S17 Pro hash board power supply unit Voltage and ground value test of Antminer S17 Pro power supply unit 1. 18V voltage test Test method : Fluke 15B + multimeter DC gear, the red test lead is placed on the positive pole of the power interface of the hash board, and the black lead is placed on the negative pole of the power interface. 2. PIC chip voltage test There is a black dot on the PIC chip, that is the 1st Pin. Test method : Fluke 15B + multimeter DC gear, measure whether the 9th Pin of the PIC chip has a voltage output; the normal voltage is about 3.3V. If there is no 3.3V, please check the connection status of the hash board test cable to see if the hash board is normal. If it is not normal, you need to reprogram the PIC. 3. MOS tube voltage test There is a white dot next to the MOS tube, which is the 1st Pin. Therefore, the voltage of the MOS tube

Antminer S17 Pro hash board detection shows "lack of ASIC chips" or "ASIC = 0" Antminer S17 Pro hash board test shows "a lack of chips" Troubleshooting method : Adjust the Fluke 17B+ multimeter to the DC gear, test according to the chip number reported by the computer, and test the voltage of the five signal test points corresponding to the chip (CLK-CO-RI-BO-RST). For example, a single S17 Pro hash board has 48 BM1397 ASIC chips. When the test fixture only detects 15 chips, it will display: asic num=15; then, it is necessary to test whether the voltages of chips 15 and 16 are normal. 2. Antminer S17 Pro hash board test shows "asicNum = 0" Check method : 1. Swap the faulty hash board data cable with the non-faulty hash board data cable (only the side of the hash board is exchanged), and eliminate the problem of the data cable and the control board. If it cannot be solved, the hash board is broken. At this time, it is necessary to use a test fixt

How to troubleshoot the hash board not starting? There are many reasons for the hash board not to start, among which the failure of the temperature sensor chip is one of the reasons for the hash board not to start. The temperature sensor chip is mainly used to sense the temperature of the hash board and its surroundings. Therefore, if it is damaged, it will cause abnormal temperature readings: the hash board will not start when the temperature is too low (the backstage log shows that the temperature sensor reading failed), or the hash board will stop running when the temperature is too high. If the temperature sensor chip fails, it can cause frequency, temperature, and hash rate failures and ultimately render the miner inoperable. Among them, the T451 temperature sensor chip is mainly used to replace the temperature sensor chip of the Antminer T17 / S17 / T9 hash board. Plenty of T451 temperature sensor chips: Troubleshooting methods : 1. The temperature sensor problem is caused by vi

How to test the voltage and ground value of the power supply unit of the Antminer S9 hash board? Antminer S9 hash board Antminer S9 hash board power supply unit Voltage and ground value test of Antminer S9 power supply unit 12V voltage test Test method: adjust the Fluke 15B+ multimeter to the DC gear; the red test lead is placed on the positive pole of the power interface of the hash board, and the black test lead is placed on the negative pole of the power interface. PIC chip voltage test There is a white dot next to the PIC chip, which is 1st Pin. Test method : Adjust the Fluke 15B+ multimeter to the DC gear, measure whether the 1st Pin of the PIC chip has output, and the normal voltage is about 3.3V. If there is no 3.3V, please check the connection status of the hash board test line to see if the hash board is normal; if not, you need to re-program the PIC. MOS tube voltage test There is a black dot on the MOS tube, which is the 1st Pin (Figure 1). This is because the voltage of t