ASROCK X99 WS User Manual page 80

CPU Thermal Throttling
Enable CPU internal thermal control mechanisms to keep the CPU from overheat-
ing.
CPU C States Support
Enable CPU C States Support for power saving. It is recommended to keep C3, C6
and C7 all enabled for better power saving.
Package C State Support
Enable CPU, PCIe, Memory, Graphics C State Support for power saving.
CPU C3 State Support
Enable C3 sleep state for lower power consumption.
CPU C6 State Support
Enable C6 deep sleep state for lower power consumption.
Enhanced Halt State (C1E)
Enable Enhanced Halt State (C1E) for lower power consumption.
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