SUPER MICRO Computer X9DRD-LF, X9DRD-iF user manual Acpi Features, Power Supply

X9DRD-iF/LF Motherboard User’s Manual

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 XP, 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-iF/LF motherboard accommodates 24-pin ATX power supplies. Al- though most power supplies generally meet the specifications required by the CPU, some are inadequate. In addition, two 12V 8-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 avoid damaging your motherboard and components, please use a power supply that supports a 24-pin, two 4-pin and two 8-pin power connectors. Be sure to connect the 24-pin and the 8-pin power connectors to your power supply for adequate power delivery to your system. The 4-pin power connectors are optional; however, Supermicro recommends that these connectors also be plugged in for optimal power delivery.

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/). Additionally, in areas where noisy power transmission is present, you may choose to install a line filter

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