Instantly Available Pc Technology; Wake From Usb; Wake From Serial Port - Intel BOXDQ67EPB3 Specification

1.16.2.4

Instantly Available PC Technology

CAUTION
For Instantly Available PC technology, the +5 V standby line for the power supply
must be capable of providing adequate +5 V standby current. Failure to provide
adequate standby current when implementing Instantly Available PC technology can
damage the power supply.
Instantly Available PC technology enables the board to enter the ACPI S3 (Suspend-to-
RAM) sleep-state. While in the S3 sleep-state, the computer will appear to be off (the
power supply is off and the front panel power LED will behave as configured by the
BIOS "S3 State Indicator" option). When signaled by a wake-up device or event, the
system quickly returns to its last known wake state. Table 7 on page 36 lists the
devices and events that can wake the computer from the S3 state.
The board supports the PCI Bus Power Management Interface Specification. Add-in
boards that also support this specification can participate in power management and
can be used to wake the computer.
The use of Instantly Available PC technology requires operating system support, PCI
Express add-in cards, and drivers.
1.16.2.5

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
and is supported by the operating system.
1.16.2.6 WAKE# Signal Wake-up Support
When the WAKE# signal on a PCI Express add-in card is asserted, the computer wakes
from an ACPI S3, S4, or S5 state.
1.16.2.7

Wake from Serial Port

Serial port activity wakes the computer from an ACPI S3 state.
Product Description
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