Справочник Пользователя для Intel BLKDX79TO

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The board supports a chassis security feature that detects if the chassis cover has 
been removed.  The security feature uses a mechanical switch on the chassis that can 
be connected to the chassis intrusion header on the Desktop Board.  See Figure 20 for 
the location and pinout of the chassis intrusion header. 

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 
•  Wake from Consumer IR 

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. 

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 23 on page 53 for the 
location of the power connectors.