Acpi Features; Slow Blinking Led For Suspend-State Indicator; Power Supply - Supero X9DRD-EF User Manual

to provide you with warnings when the system temperature, CPU temperatures,
voltages, and fan speeds go beyond a predefined range.
1-5

ACPI Features

ACPI stands for Advanced Configuration and Power Interface. The ACPI specifica-
tion 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 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 imple-
mentation that is compatible with Windows 7, Windows Vista and Windows 2008
Operating Systems.

Slow Blinking LED for Suspend-State Indicator

When the CPU goes into a suspend state, the chassis power LED 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.
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.
The X9DRD-EF motherboard accommodates 24-pin ATX power supplies. Although
most power supplies generally meet the specifications required by the CPU, some
are inadequate. In addition, two 12V 8-pin, and the 4-pin power connections are
also required to ensure adequate power supply to the system. Your power supply
must also supply 1.5A for the Ethernet ports.
Warning! To prevent damage to the power supply or the motherboard,
please use a power supply that contains a 24-pin, a 4-pin, and two 8-pin
power connectors. Be sure to connect the power supply to the 24-pin power
connector (JPW1), and the two 8-pin power connectors (JPW2/3) on the
motherboard. Failure in doing so will void the manufacturer warranty on
your power supply and motherboard.
1-13
Chapter 1: Overview