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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 broken. A test fixture is required for further inspection. It is recommended to use Antminer test fixture offline version, click on the video to see how to use it:
2) First, we need to test the domain voltage, but we do not need to measure the voltage of each domain. First, test the voltage of the entire domain to see if there is 21V.
First, we need to test if there is 21V between the first voltage domain and the last voltage domain.
Test method: Adjust the Fluke 15B+ multimeter to the DC gear, and place the red and black test pens on the steel windshield (because the steel windshield is under 21V voltage) and the heat sink of the first domain.
If there is 21V, recheck the voltage of RI (because checking the voltage of RI can be positioned. After positioning, check the voltage of the domain, LDO 1.8V and PLL 0.8V output). The inspection direction of the RI voltage is from the back to the front (from chip No.65 to chip No.1); we do not need to check one by one; we can start from the middle of the RI signal at this point is 1.8V, we will check forward, and if not, check backward.
Test method: Adjust the Fluke 15B+ multimeter to the DC gear, and place the red and black test leads on the RI test point and heat sink of the same domain respectively. If the RI signal of the chip has 1.8V, continue to detect whether the RI signal of the previous chip in the same domain has 1.8V. If not, check whether the domain voltage between the two chips has 1.5V. (Because the domain voltage powers the chips in the same domain).
If the domain voltage between the two chips is 1.5V, we need to measure the 0.8V voltage and 1.8V voltage of this group of domains. If the voltage output is normal, it means that the chip whose RI signal does not have 1.8V has a high probability of being broken, so it is necessary to detect its ground value.
Ground value detection method: adjust the Fluke 15B+ multimeter to the diode gear, put the red test lead on the heat sink of the same domain, and test with the black test lead.
For more Antminer S17+ hash board failures, please check the Antminer S17+ Hash Board Repair Guide!
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