Check if the fixture is functioning properly or if a reboot is required. Verify the reliability and integrity of the fixture.
Investigate any potential issues with the data cable interface. Abnormal resistances at the interface are often the cause.
By performing these checks, you can identify and address any issues related to the fixture or data cable interface that may be causing the abnormal RST reset voltage.
In this case, you should short-circuit the CO signal of the chip and continue the process. If short the output CO signal of chip 1 ,reports asic 1, continue with the rest of the chips. Identify the defective chip that cannot receive the signal and replace it.
Machines that were previously running fine but cannot run after board stacking may not be related to frequency but rather to the BIN (firmware version) used. Try using similar BIN versions, such as BIN4, and check if the A5V1R (ASIC version) is the same.
S9K does not support board stacking.
If the control board is not faulty, please export the complete kernel log and analyze it for further investigation.
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