System Support

4.5.2 Power Management

These systems provide baseline hardware support of ACPI-compliant firmware and software. Key power-consuming components (processor, chipset, I/O controller, and fan) can be placed into a reduced power mode either automatically or by user control. The system can then be brought back up (“wake-up”) by events defined by the ACPI 2.0 specification. The ACPI wake-up events supported by this system are listed as follows:

Table 4-6.

ACPI Wake-Up Events

ACPI Wake-Up Event

System Wakes From

 

 

Power Button

Suspend or soft-off

 

 

RTC Alarm

Suspend or soft-off

 

 

Wake On LAN (w/NIC)

Suspend or soft-off

 

 

PME

Suspend or soft-off

 

 

Serial Port Ring

Suspend or soft-off

 

 

USB

Suspend only

 

 

Keyboard

Suspend only

 

 

Mouse

Suspend only

 

 

 

Technical Reference Guide

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