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Chapter 1: Introduction
1.5 ACPI Features
The Advanced Configuration and Power Interface (ACPI) specification defines a flexible and
abstract hardware interface that provides a standard way to integrate power management
features throughout a computer 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 also 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
appropriate Windows operating systems.
1.6 Power Supply
As with all computer products, a stable power source is necessary for proper and reliable
operation. It is even more important for processors that have high CPU clock rates where
noisy power transmission is present.
This motherboard accommodates a 24-pin ATX power supply. Although most power supplies
generally meet the specifications required by the CPU, some are inadequate. In addition, one
12V 8-pin power connection is also required to ensure adequate power supply to the system.
Warning:
To avoid damaging the power supply or the motherboard, use a power
supply that contains a 24-pin and an 8-pin power connector. Be sure to connect the
power supplies to the 24-pin power connector (JPWR1), and the 8-pin power connector
(JPWR2) on the motherboard. Failure in doing so may void the manufacturer warranty
on your power supply and motherboard.
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.
1.7 Serial Port
This motherboard supports two serial communication connections. COM port 1 and COM
header 2 can be used for input/output. The UART provides legacy speeds with a baud rate
of up to 115.2 Kbps as well as an advanced speed with baud rates of 250 K, 500 K, or 1
Mb/s, which support high-speed serial communication devices.
