Intel DX48BT2 Product Guide - Page 20

Power Management, Software Support - ram

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Intel Desktop Board DX48BT2 Product Guide Power Management Power management is implemented at several levels, including software support through the Advanced Configuration and Power Interface (ACPI) and the following hardware support: • Power connectors • Fan headers • LAN wake capabilities • Instantly Available PC technology (Suspend to RAM) • +5 V standby power indicator LED • Wake from USB • Power Management Event signal (PME#) wakeup support • WAKE# signal wake-up support • ENERGY STAR capable Software Support ACPI ACPI gives the operating system direct control over the power management and Plug and Play functions of a computer. The use of ACPI with the Desktop Board requires an operating system that provides full ACPI support. Hardware Support Power Connectors ATX12V-compliant power supplies can turn off the computer power through system control. When an ACPI-enabled computer receives the correct command, the power supply removes all non-standby voltages. When resuming from an AC power failure, the computer returns to the power state it was in before power was interrupted (either on or off). The computer's response can be set by using the Last Power State feature in the BIOS Setup program's Boot menu. The Desktop Board has three power connectors. See Figure 30 on page 55 for the location of the power connectors. 20

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Intel Desktop Board DX48BT2 Product Guide
20
Power Management
Power management is implemented at several levels, including software support
through the Advanced Configuration and Power Interface (ACPI) and the following
hardware support:
•
Power connectors
•
Fan headers
•
LAN wake capabilities
•
Instantly Available PC technology (Suspend to RAM)
•
+5 V standby power indicator LED
•
Wake from USB
•
Power Management Event signal (PME#) wakeup support
•
WAKE# signal wake-up support
•
ENERGY STAR capable
Software Support
ACPI
ACPI gives the operating system direct control over the power management and Plug
and Play functions of a computer.
The use of ACPI with the Desktop Board requires an
operating system that provides full ACPI support.
Hardware Support
Power Connectors
ATX12V-compliant power supplies can turn off the computer power through system
control.
When an ACPI-enabled computer receives the correct command, the power
supply removes all non-standby voltages.
When resuming from an AC power failure, the computer returns to the power state it
was in before power was interrupted (either on or off).
The computer’s response can
be set by using the Last Power State feature in the BIOS Setup program’s Boot menu.
The Desktop Board has three power connectors.
See Figure 30 on page 55 for the
location of the power connectors.