User Manual

Intel NUC Kit/Mini PC NUC11PA{X} Technical Product Specification
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4.6 Hardware Management Subsystem
4.6.1 Fan Monitoring
Fan monitoring can be implemented using third-party software.
4.6.2 System States and Power States
Table 7 describes the ACPI states supported by the processor.
Table 7. Systems States
State Description
G0/S0/C0
Full On: CPU operating. Individual devices may be shut to save power. The different
CPU operating levels are defined by Cx states.
GO/S0/Cx
Cx State: CPU manages C-states by itself and can be in lower power states.
G1
Suspend-To-RAM (STR): The system context is maintained in system DRAM, but
power is shut to non-critical circuits. Memory is retained and refreshes continue. All
external clocks are shut off; RTC clock and international oscillator clocks are still
toggling.
G1/S4
Suspend-To-Disk (STD): The context of the system is maintained on the disk. All
power is then shut to the system except to the logic required to resume. Externally
appears the same as S5 but may have different wake events.
G2/S5
Soft Off: System context not maintained. All power is shut except for the logic required
to restart. A full boot is required when waking.
G3
Mechanical Off: System context not maintained. All power shut except for the RTC. No
“Wake” events are possible because the system does not have any power. This state
occurs if the user removes the batteries, turns off a mechanical switch, or if the system
power supply is at a level that is insufficient to power the “waking” logic.
4.6.2.1 Wake-up Devices and Events
Table 8 lists the devices or specific events that can wake the computer from specific
states.
Table 8. Wake-up Devices and Events
Devices/events that wake up the
system…
…from this sleep
state
Comments
Power switch S0iX, S4, S5
1
RTC alarm S0iX, S4, S5
1
Option for monitor to remain in
sleep state
LAN S0iX, S5
1, 3
“S5 WOL after G3” is supported;
monitor to remain in sleep state
WIFI S0iX, S4, S5
1, 3
Bluetooth S0iX, S4
1
USB S0iX, S4, S5
1, 2, 3
Wake S4, S5 controlled by BIOS
option (not after G3)