ASIC miner repair guide and tutorials

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

Antminer T17 hash board test shows "lack of ASIC chips" or "ASIC=0" 1. Antminer T17 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 (CLK-CO-RI-BO-RST) corresponding to the chip respectively. For example, a single T17 hash board has 30 BM1397 ASIC chips. When testing the chip, it will report that the No.15 chip is faulty and display asic num=15, then test whether the voltage of the No.15 and No.16 chips is normal. 2. Antminer T17 hash board test shows "asic num=0" Troubleshooting method:  1. Swap the data cable of the faulty hash board with the position of the data cable of the non-faulty hash board (replace only the side of the hash board), and eliminate the problem of the data cable and control board. If it cannot be solved, the hash board is broken and needs to be detec

Antminer S17+ hash board test shows "lack of ASIC chips" or "ASIC = 0" 1. Antminer S17+ hash board test shows "a lack of chips" Troubleshooting method: adjust the Fluke 15B+ 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 (CLK-CO-RI-BO-RST) corresponding to the chip respectively. For example, a single S17+ hash board has 65 BM1397 chips. When the test fixture detects that the No.30 chip is faulty, it will be displayed as asic num=30; then, it is necessary to check whether the voltage of No.30 and No.31 chips is normal.  2. Antminer S17+  hash board test shows "asic num=0" Troubleshooting method:  1) Swap the data cable of the faulty hash board with the position of the data cable of the non-faulty hash board (replace only the side of the hash board), and eliminate the problem of the data cable and the control board. If it cannot be solved, the hash board is

How to test the voltage and ground value of the Antminer  T17 hash board power supply unit? Antminer T17 hash board power supply unit Voltage and ground value test for Antminer T17 power supply unit 1. 17V voltage test Test method : The Fluke 17B+ multimeter is adjusted to the DC gear, the red test lead is placed on the positive electrode of the power interface of the hash board, and the black test lead is placed on the negative electrode of the power interface. 2. PIC chip voltage test There is a black dot on the PIC chip, that is 1st Pin. Test method : adjust the Fluke 17B+ multimeter to DC gear, measure whether the 9th Pin of the PIC chip has output; the normal voltage is about 3.3V. If there is no 3.3V, please check the connection status of the T17 hash board test cable to determine whether the hash board is normal; if not, you need to re-program the PIC. 3. MOS tube voltage test There is a white dot next to the MOS tube, which is 1st Pin. The voltage of the MOS tube is the 1st Pi

Antminer S9 hash board test shows "lack of ASIC chips" or "ASIC=0" 1. Antminer S9 hash board test shows  "lack of asic chips " Troubleshooting method: adjust the multimeter to 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 S9 hash board  has 63 BM1387 chips . When the test fixture reports chip No.18, it is displayed as asic num=18, then test whether the voltage of chips No. 1 8 and No.19 is normal. 2. Antminer S9  hash board test shows "asic num=0" Check method: 1. Swap the faulty hash board data cable with the non-faulty hash board data cable (replace only the side of the hash board), and eliminate the data cable and control board problems, if they cannot be solved, that is, the hash board is broken and needs to be detected with a test fixture ,  it is recommended to use Antminer test fixture - offline ver

How to test the voltage and ground value of the Antminer S17+ hash board power supply unit? Antminer S17+ hash board power supply unit Voltage and ground value test of Antminer S17+ power supply unit 1. 21V voltage test Test method: adjust the fluke multimeter to DC gear, put the red test lead on the positive pole of the hash board power interface and the black lead on the negative pole of the power interface. 2. PIC chip voltage test There's a black spot on the PIC chip, that's the 1st Pin. Test method: multimeter DC gear, measure whether the 2ed Pin of the PIC chip has output; the normal voltage is about 3.3V. If there is no 3.3V, please check the connection status of the hash board test line, whether the hash board is normal, and if not, re-program the PIC. 3. MOS tube voltage test There is a white dot next to the MOS tube, which is   1st  Pin. The voltage of the MOS tube is the 1st Pin input and the 8th Pin output. Test method : the multimeter is in DC gear, the black test

Why need to replace Antminer S9 hash board temperature file? When testing the Antminer S9 hash board, the test fixture shows "Cannot open kernel log to change to next voltage and frequency", what should we do? Sometimes when we use the Antminer test fixture to test Bitmain Antminer S9 hash board, the test may not be carried out smoothly due to the temperature file error. This is because the S9 hash board has 3 different versions of temperature files. When the test fixture shows "Cannot open the kernel log to change to the next voltage and frequency", we need to replace the temperature files and let the test fixture work normally. You can download it on ZEUS MINING website: Antminer S9 hash board temperature files After download and open it. We will see there are three versions of temperature files. We need to copy the files to the test fixture TF card which have the S9 fixture files and replace them. Notice: We don’t know which one is correct. So we need to replace

 How to use the fluke multimeter to test the IC chip failure? This article will introduce five methods for measuring faulty IC chips with a multimeter, and you can check them one by one. I. Offline detection Measure the positive and negative resistance values between each pin of the IC chip and the ground. Compare this with a good IC chip to find the point of failure. II. Online detection 1. Detection method of DC resistance Same as offline detection. But beware: a. Disconnect the power supply on the circuit board to be tested; b. The internal voltage of the multimeter shall not be greater than 6V; c. When measuring, pay attention to the influence of the periphery. Such as electronic components connected to IC chips. 2. Measurement of DC working voltage The measured DC voltage of each pin of the IC chip can be compared with the normal value. But also note: a. The multimeter must have a large enough internal resistance, and the digital multimeter is the first choice; b. Each potentiomet