Справочник Пользователя для Intel SE7520JR2

Revision 1.0 

If an operating system is loaded, the sleep button generates a wake event to the ACPI chipset 
and a request (via SCI) to the OS to place the system in the “On” state.  The OS retains control 
of the system and OS policy determines what sleep state (if any) and sleep sources the system 
can wake from. 

The platform supports the following ACPI System Sleep States: 

• 

ACPI S0 (working) state 

• 

ACPI S1 (sleep) state 

• 

ACPI S4 (suspend to disk) state 

• 

ACPI S5 (soft-off) state 

The platform supports the following wake up sources in an ACPI environment.  As noted above, 
the OS controls the enabling and disabling of these wake sources.   

• 

Devices that are connected to all USB ports, such as USB mice and keyboards can wake 
the system up from the S1 sleep state. 

• 

PS/2 keyboards and mice can wake up the system from the S1 sleep state. 

• 

Both serial ports can be configured to wake up the system from the S1 sleep state. 

• 

PCI cards, such as LAN cards, can wake up the system from the S1 or S4 sleep state.  
Note that the PCI card must have the necessary hardware for this to work. 

• 

As required by the ACPI Specification, the power button can always wake up the system 
from the S1 or S4 state. 

2.  

Additionally, if an ACPI operating system is loaded, the following can cause the system to wake 
up:  the PME, RTC, or Wake-On-LAN. 

Power Button 

Always wakes system. 

Always 
wakes 
system 

Ring indicate from Serial A 

Wakes from S1 and S4. 

Yes 

Ring indicate from Serial B 

Wakes from S1 and S4. If Serial-B (COM2) is used for 
Emergency Management Port, Serial-B wakeup is 
disabled. 

Yes 

PME from PCI cards 

Wakes from S1 and S4. 

Yes 

RTC Alarm 

Wakes from S1.  Always wakes the system up from S4. 

No 

Mouse 

Wakes from S1. 

No 

Keyboard 

Wakes from S1. 

No 

USB 

Wakes from S1. 

No