Dell PowerEdge T310 Spezifikationen PDF herunterladen (Seite 33)

Dell

PowerEdge T310 Technical Guide

Table 15 summarizes the power management features on this system.

Table 15. Power Management Features

Feature

Type

Enable/Status/

Ctrl bit location

Description

ACPI Mode Switch

Fixed

PCH

OS uses the SCI_EN bit in PCH to

switch from legacy mode to ACPI

mode

Sleep States

Fixed

PCH

Supported states:

S0 (Working)

S4 (Hibernation)

S5 (Soft-off)

Not supported:

S1 and S3 (standby)

Power Button

Fixed

PCH

In ACPI mode, OS has control of the

power button; in non-ACPI mode, SMI

handler owns power button events

Real-Time Clock

Fixed

PCH

OS can configure the system to wake

on the RTC alarm

Power Mgmt.

Timer

Fixed

PCH

24-bit power management timer

Power Mgmt. Event

(PME)

Generic

PCH

When a device signals PME, the system

wakes (if necessary), the OS detects

the event, and a Dell-defined ASL

routine handles the event;

wake-on-LAN is an example of a PME

USB Wake

Generic

N/A

Not supported since S1 is not

supported

DBS

N/A

Processor MSRs

Handles P state transition under

Windows

C State Support

N/A

Processor and PCH

registers

Allows multiple C-state support for

the processor; works under Windows

and an ACPI OS that understands C

states

Power Profile

Support

N/A

Processor and PCH

chipset registers

In addition to P, C, and T states, the

BIOS exposes the power profiles to the

OS; each power profile has specific

settings and will fine tune the

processor, MCH, and IOH

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