Справочник Пользователя для Intel DQ35MP

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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 two power connectors.  See Figure 26 on page 57 for the 
location of the power connectors. 

The function/operation of the fans is as follows: 
•  The fans are on when the computer is in the ACPI S0 state. 
•  The fans are off when the computer is in the ACPI S3, S4, or S5 state. 
•  Each fan header is wired to a tachometer input of the hardware monitoring and 

control device. 

•  All fan headers support closed-loop fan control that can adjust the fan speed or 

switch the fan on or off as needed. 

•  All fan headers have a +12 V DC connection. 
The Desktop Board has a 4-pin processor fan header and two 3-pin chassis fan 
headers.