Wake From Usb; Wake From Serial Port - Intel DB75EN Specification

1.12.2.5

Wake from USB

USB bus activity wakes the computer from an ACPI S3 state.
NOTE
Wake from USB requires the use of a USB peripheral that supports Wake from USB.
1.12.2.6 PME# Signal Wake-up Support
When the PME# signal on the Conventional PCI bus is asserted, the computer wakes
from an ACPI S3, S4, or S5 state (with Wake on PME enabled in the BIOS).
1.12.2.7 WAKE# Signal Wake-up Support
When the WAKE# signal on the PCI Express bus is asserted, the computer wakes from
an ACPI S3, S4, or S5 state.
1.12.2.8 Wake from PS/2 Devices
PS/2 keyboard activity wakes the computer from an ACPI S3, S4, or S5 state.
However, when the computer is in an ACPI S4 or S5 state, the only PS/2 activity that
will wake the computer is the Alt + Print Screen or the Power Key available only on
some keyboards.
1.12.2.9

Wake from Serial Port

Serial port activity wakes the computer from an ACPI S3 state.
1.12.2.10 Wake from S5
When the RTC Date and Time is set in the BIOS, the computer will automatically wake
from an ACPI S5 state.
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