Hardware Support; Wake-Up Devices And Events - Intel DB75EN Specification

Intel Desktop Board DB75EN Technical Product Specification
1.12.1.2

Wake-up Devices and Events

Table 10 lists the devices or specific events that can wake the computer from specific
states.
Table 10. Wake-up Devices and Events
These devices/events can wake up the computer...
Power switch
RTC alarm
LAN
USB
PME# signal
WAKE#
Serial port
PS/2 devices
Notes:
1. S4 implies operating system support only.
2. Wake from S4 and S5 is recommended by Microsoft.
3. PS/2 wake from S5 has a selection in the BIOS to enable wake from a combination key (Alt + Print
Screen) or the keyboard power button.
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.
1.12.2

Hardware Support

CAUTION
Ensure that the power supply provides adequate +5 V standby current if LAN wake
capabilities and Instantly Available PC technology features are used. Failure to do so
can damage the power supply. The total amount of standby current required depends
on the wake devices supported and manufacturing options.
The board provides several power management hardware features, including:
Power connector
•
Fan headers
•
LAN wake capabilities
•
Instantly Available PC technology
•
Wake from USB
•
Power Management Event signal (PME#) wake-up support
•
PCI Express WAKE# signal support
•
Wake from PS/2 devices
•
• Wake from serial port
Wake from S5
•
• +5 V Standby Power Indicator LED
36
...from this state
Note 1)
(
S3, S4, S5
(Note 1)
S3, S4, S5
(Note 1)
S3, S4, S5
S3
(Note 1)
S3, S4, S5
(Note 1)
S3, S4, S5
S3
(Notes 1 and 3)
S3, S4, S5