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2 power management – HP DC5850 User Manual

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Technical Reference Guide

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4-11

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