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Chapter 1: Introduction
1.5 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 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. For detailed information regarding OS support,
please refer to the Supermicro website.
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.
The X12SCQ 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, be sure to use a
power supply that contains a 24-pin and an 8-pin power connector. Be sure to con-
nect the power supplies to the 24-pin power connector (JPW1), and the 8-pin power
connector (JPW2) 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. (For more information,
please refer to the website at
).
1.7 Serial Port
The X12SCQ motherboard supports four serial communication connections. COM12 and
COM34 can be used for input/output. The UART provides legacy speeds with a baud rate
of up to 115.2 Kbps.