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Product Description

1.11.1.2 Wake-up Devices and Events

Table 9 lists the devices or specific events that can wake the computer from specific

states.

Table 9. Wake-up Devices and Events

Devices/events that wake up the system… …from this sleep state

Power switch S3, S4, S5

(

Note 1)

RTC alarm S3, S4, S5

(Note 1)

LAN S3, S4, S5

(Note 1)

USB S3

(Note 2)

WAKE# S3, S4, S5

(Note 1)

PME# signal S3, S4, S5

(Note 1)

Serial port S3

PS/2 devices S3, S4, S5

(Notes 1 and 3)

Notes:

1. S4 implies operating system support only.

2. USB ports must be turned off during S4/S5 states.

3. PS/2 wake from S5 should have 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.

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