Here is the guide to show you how to check the RXD, TXD, and CLK signal voltages of the chip when Whatsminer M30S chip report is incomplete.
When the Whatsminer M30S single board test reveals that there aren’t enough chips, it means that the hash board’s power supply is functioning normally. The faulty chip can then be identified by examining the chip’s RXD, TXD, and CLK signal voltages.
1. Determine the voltage of the RXD signal first (the RXD signal is transmitted from the first to the last), then the TXD signal (the TXD signal is transmitted from the last to the first). Examine the first and last chips’ RXD and TXD generally. Their respective signal voltages are both 1.8V under normal conditions.
2. Measure the last chip of each CLK signal corresponding to the chip to take another reading of the CLK signal voltage. A 0.9V signal has a typical voltage.