Product Description
31
1.12.1.2
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
These devices/events can wake up the computer…
…from this state
LAN
S1, S3, S4, S5
(Note 1)
PME# signal
S1, S3, S4, S5
(Note 1)
Power switch
S1, S3, S4, S5
RTC alarm
S3, S4, S5
Serial port
S3
USB
S3
PS/2 devices
S1, S3, S4, S5 (Note 2)
Note 1: For LAN and PME# signal, S5 is disabled by default in the BIOS Setup program. Setting this option
to Power On will enable a wake-up event from LAN in the S5 state.
Note 2: For PS/2 devices, if the computer is in an S4 or S5 state, only the key combination alt-PrtScn will
wake the computer.
NOTE
The use of these wake-up events from an ACPI state requires an operating system
that provides full ACPI support. In addition, software, drivers, and peripherals must
fully support ACPI wake events.