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PDSMA+/PDSMA-E+
User’s Manual
1-6
ACPI Features
ACPI stands for Advanced Configuration and Power Interface. The ACPI specifica
-
tion defines a flexible and abstract hardware interface that integrates power man
-
agement features with other components of a PC system, including its hardware,
operating system and application software. This enables the system to automati-
cally turn on and off peripherals such as CD-ROMs, network cards, hard disk drives
and printers. This also includes other devices connected to the PC such as VCRs,
TVs, telephones and stereos.
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-indepen-
dent implementation that is compatible with both Windows and Linux Operating
Systems.
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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 of 1 GHz and faster.
The
PDSMA+/PDSMA-E+ accommodates 12V ATX power supplies. Al-
though most power supplies generally meet the specifications required by the CPU,
some are inadequate. A 2 amps of current supply on a 5V Standby rail is strongly
recommended. It is strongly recommended that you use a high quality power sup-
ply that meets ATX power supply Specification 2.02 or above. Also your power
supply must supply 1.5A for the Ethernet ports. It must also be SSI compliant (info
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 prob-
lems caused by power surges. To provide adequate power supply to the system,
the additional 8-pin 12V power is also required.
