Suspend To Ram (Instantly Available Pc Technology); Location Of The Standby Power Indicator - Intel D845GLVA Product Manual

Intel Desktop Board D845GLVA Product Guide

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 2, 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.
CAUTION
Power supplies used with this board must be able to provide enough standby current to support the
standard Instantly Available (ACPI S3 sleep state) configuration. If the standby current necessary
to support multiple wake events from the PCI and/or USB buses exceeds power supply capacity,
the desktop board may lose register settings stored in memory.
For more information on standby current requirements for the desktop board, refer to the TPS by
selecting the Technical Documentation link at:
http://developer.intel.com/design/motherbd/
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Figure 2. Location of the Standby Power Indicator
OM15860