74
8175 N/B MAINTENANCE
8175 N/B MAINTENANCE
Suspend States:
S1 – CPU stop, no system context lost
S2 – CPU stop, no system context lost except CPU & cache’s context is lost
S3 – CPU stop, the whole system context lost except system memory content is maintained
S4 – CPU stop, all system context saved to nonvolatile media before lost.
S5 – Soft Off
CPU States:
C0 – CPU is working
C1 – CPU is in Auto Halt Mode
C2 – CPU is in Quick Start Mode, the system will maintain the cache coherency
C3 – CPU is in Deep Sleep Mode, the system must disable any event which could make the cache
lost coherency. This model is not support C3 mode.
Definitions when ACPI engaged
Global States:
G0 – Global system is working
G1 – Global system is sleeping
G3 – Global system is mechanical-off
1.5.9.3 System power state
