User`s manual
Chapter 2: Overview
1-13
1-5 ACPI Features
ACPI stands for Advanced Conguration and Power Interface. The ACPI specica-
tion denes a exible 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 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 conguration control. ACPI leverages the Plug and
Play BIOS data structures, while providing a processor architecture-independent
implementation that is compatible with Windows 7, Windows 8, 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 X9DRW-7TPF+/iTPF+ motherboard accommodates 24-pin ATX power sup-
plies. Although most power supplies generally meet the specications required by
the CPU, some are inadequate. In addition to the 24-pin ATX power, two 12V 8-pin
power connectors (JPW2/JPW3) are also required to ensure adequate power sup-
ply to the system. Your power supply must also supply 1.5A for the Ethernet ports.
Warning: To avoid damaging the power supply or motherboard, please use a power
supply that contains a 24-pin and two 8-pin power connectors. Be sure to connect these
power connectors to the 24-pin power connector located at JPW1, and the two 8-pin
power connectors located at JPW2/JPW3 on the motherboard. Failure in doing so will
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 Specication 2.02 or above. It must also be SSI compliant. (For more
information, please refer to the website at http://www.ssiforum.org/). Additionally, in
areas where noisy power transmission is present, you may choose to install a line