Acpi; Suspend To Ram (Instantly Available Pc Technology); Location Of Standby Power Indicator - Intel D845GEBV2 - Desktop Board Motherboard Product Manual

Intel Desktop Board D845GERG2/D845GEBV2 Product Guide

ACPI

ACPI gives the operating system direct control over the power management and Plug & Play
functions of a computer. The use of ACPI with the desktop board requires an operating system
that provides full ACPI support.

Suspend to RAM (Instantly Available PC Technology)

CAUTION
For Instantly Available PC technology, the 5 V standby line for the power supply must be capable
of delivering adequate +5 V standby current. Failure to provide adequate standby current when
using this feature can damage the power supply and/or effect ACPI S3 sleep state functionality.
Instantly Available PC technology enables the board to enter the ACPI S3 (Suspend-to-RAM)
sleep state. While in the S3 sleep state, the computer will appear to be off. When signaled by a
wake-up device or event, the system quickly returns to its last known awake state.
The desktop board's standby power indicator, shown in Figure 3, is lit when there is standby power
to the system. This includes the memory modules and PCI bus connectors, even when the
computer appears to be off.
If the system has a dual-colored power LED on the front panel, the sleep state is indicated by the
LED turning amber.
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CR6H1
Figure 3. Location of Standby Power Indicator
OM13591