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Super X12DPD-A6M25 User's Manual
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 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 X12DPD-A6M25 motherboard accommodates a 14-pin ATX power supply. Although most
power supplies generally meet the specifications required by the CPU, some are inadequate.
In addition, two 12V 8-pin and one 4-pin power connections are 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 14-pin, two 8-pin and one 4-pin power connectors. Be sure to connect the power supplies to the 14-pin power
connector (JPWR1), the 8-pin power connectors (JPWR2/JPWR3), and the 4-pin power connector (JPWR4) 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 http://www.ssiforum.org/).
1.7 Serial Port
The X12DPD-A6M25 motherboard has one serial communication connection (COM1) which
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.
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