Vig430P Motherboard Manual
10
ACPI Features:
ACPI stands for Advanced Configuration and Power Interface. The ACPI specification defines a
flexible and abstract hardware interface that provides a standard way to integrate power
management features throughout a PC system, including its hardware, operating system and
application software. This enables the system to automatically turn on and off peripherals such
as CD-ROMs, network cards, hard disk drives and printers.
In addition to enabling operating system-directed power management, ACPI provides a generic
system event mechanism for Plug and Play and an operating system-independent interface for
configuration control. ACPI leverages the Plug and Play BIOS data structures while providing a
processor architecture-independent implementation that is compatible with both Windows 2000
and Windows 2003 Operating Systems.
Slow Blinking LED for Suspend-State Indicator
When the CPU goes into a suspend state, the chassis power LED and LE1 will start blinking to
indicate that the CPU is in suspend mode. When the user presses any key, the CPU will wake-
up and the LED will automatically stop blinking and remain on.
Main Switch Override Mechanism
When an ATX power supply is used, the power button may function as a system suspend
button, allowing the system to enter a Soft Off state. The monitor will be suspended and the
hard drive will spin down. Pressing the power button again to "wake-up" the whole system.
During the Soft Off state, the ATX power supply provides power to keep the required circuitry in
the system "alive." In case the system malfunctions and you want to turn off the power, just
press and hold the power button for 4 seconds. This option can be set in the BIOS Setup utility.
Power Supply:
Wake-up events can be triggered by a device such as the external modem ringing when the
system is in the Standby or Off state. Note that external modem ring-on can only be used with
an ATX 2.01 (or above) compliant power supply.
The Vig430P can accommodate 24-pin ATX power supplies. Although most power supplies
generally meet the specifications required by the CPU, some are inadequate. In addition, the
two 12V 8-pin power connections are also required to ensure adequate power supply to the
system. Also your power supply must supply 1.5A for the Ethernet ports.
It is strongly recommended that you use a high quality power supply that meets ATX power
supply Specification 2.02 or above. It must also be SSI compliant. (For more information, please
refer to the web site at http://www.ssiforum.org/). Additionally, in areas where noisy power
transmission is present, you may choose to install a line filter to shield the computer from noise.
It is recommended that you also install a power surge protector to help avoid problems caused
by power surges.
