TYAN S5642 Manual page 89

3.3.9.5.3 CPU C State Control
Package C State
Package C State limit.
C0/C1 state / C2 state / C6 (non Retention) state / Auto
CPU C6 report
Enable/Disable CPU C6 (ACPI C3) report to OS.
Disabled / Enabled / Auto
Enhanced Halt State (C1E)
Core C1E auto promotion Control. Take effect after reboot.
Disabled / Enabled
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