Intel DZ77SL-50K Technical Product Specification - Page 35

Hardware Support

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Product Description 1.11.1.2 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 ...from this state S3, S4, S5 (Note 1) S3, S4, S5 (Note 1) S3, S4, S5 (Note 1) USB PME# signal WAKE# PS/2 devices S3 S3, S4, S5 (Note 1) (Note 1) S3, S4, S5 S3, S4, S5 (Notes 1 and 3) Consumer IR S3, S4, S5 (Note 2) 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. 1.11.2 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 Consumer IR • Wake from S5 • Power Supervisor • +5 V Standby Power Indicator LED 35

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Product Description
35
1.11.1.2
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…
…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
PME# signal
S3, S4, S5
(Note 1)
WAKE#
S3, S4, S5
(Note 1)
PS/2 devices
S3, S4, S5
(Notes 1 and 3)
Consumer IR
S3, S4, S5
(Note 2)
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.
1.11.2
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 Consumer IR
•
Wake from S5
•
Power Supervisor
•
+5 V Standby Power Indicator LED