I searched Google and found the CSR register to change the QPI_rate of the Intel CPU.
I have tried to change the QPI_rate value using the PCM tool, but it is possible to read the value but not write.
I would like to know if there is any way to change the QPI_rate value.
Please let me know if the setpci command or any other method on Linux instead of changing it in BIOS.
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