Intel Vig390s - Manual (Page 31)

Vig390s Motherboard Manual V1.0 30
Wake from USB
USB bus activity wakes the computer from ACPI S1 or S3 states.
Note: Wake from USB requires the use of a USB peripheral that supports Wake
from USB.
Wake from PS/2 Devices
PS/2 device activity wakes the computer from an ACPI S1 or S3 state.
PME# Signal Wake-up Support
When the PME# signal on the PCI bus is asserted, the computer wakes from an
ACPI S1, S3, S4, or S5 state (with Wake on PME enabled in BIOS).