Intel Desktop Board DH77EB Technical Product Specification
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1.11.1.2
Wake-up Devices and Events
Table 12 lists the devices or specific events that can wake the computer from specific
states.
Table 12. Wake-up Devices and Events
These devices/events can wake up the computer…
…from this state
Power switch
S3, S4, S5
(
Note 1)
RTC alarm
S3, S4, S5
(Note 1)
LAN
S3, S4, S5
(Note 1)
USB
S3
WAKE#
S3, S4, S5
(Note 1)
Consumer IR
S3, S4, S5
(Note 2)
Serial port
S3
Notes:
1.
S4 implies operating system support only.
2.
Wake from S4 and S5 is recommended by Microsoft.
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.
1.11.2
Hardware Support
CAUTION
Ensure that the power supply provides ad5 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
•
PCI Express WAKE# signal support
•
Wake from Consumer IR
•
Wake from serial port
•
Wake from S5
•
+5 V Standby Power Indicator LED
LAN wake capabilities and Instantly Available PC technology require power from the
+5 V standby line.
