Whatsminer M21S hashboard main powering unit voltage measurement method

The first step in the maintenance of Whatsminer M21S hash board is to check whether the voltage of its powering unit is normal, mainly including the main powering unit, domain voltage, boost circuit, 1.8V powering and 0.8V powering. Measuring the hash board voltage is a crucial step in repairing an ASIC miner. This lesson mainly introduces the test points for the voltage and demonstrates how to measure it.

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