User Manual

55931 Rev. 1.20 February 2018
AMD Ryzen™ Master Overclocking User’s Guide
AMD Ryzen™ Processor Overclocking Summary
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3. CPU low power c-states (CC1, CC6, and PC6) and software visible p-states (P1 and P2)
remain operational and may be requested by software so that power savings can be achieved.
a. The P1 and P2 p-state tables may also be modified to adjust the voltage and frequency of
the CPU when running in software-requested, reduced-performance states. These may also
be left at stock values.
b. If the OS-level software power policy is also changed so that the CPU’s power-saving p-
states are not used, then these power-saving states will never be requested.
c. If AMD Cool’N’Quiet™ technology is disabled, then low power c-states will also be
disabled.
4. Various internal voltage regulators supplying CPU core power are placed into bypass mode,
allowing the external VDDCR_CPU to directly supply the CPU cores.