About the Power button LED states
The following table provides a description of each power state.
Table: Power button LED states
State | Power Mode | LED | Description |
|---|---|---|---|
Power - off | Non-ACPI | Off | The system power is off, and the BIOS has not initialized the chipset. |
Power - on | Non-ACPI | On | The system power is on and the green Power button LED is active. |
S0 | ACPI (Advanced Configuration and Power Interface) | Steady on | The system and the operating system are up and running. |
S5 | ACPI (Advanced Configuration and Power Interface) | Off | Mechanical is off and the operating system has not saved any context to the hard disk drive. |