Supermicro X9QR7-TF+ - ACPI Features; Power Supply

Chapter 1: Overview
1-13
to provide you with warnings when the system temperature, CPU temperatures,
voltages, and fan speeds go beyond a predened range.
1-5 ACPI Features
ACPI stands for Advanced Conguration and Power Interface. The ACPI specica-
tion denes 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 operating_system-directed power management, ACPI also provides
a generic system event mechanism for Plug and Play, and an operating system-
independent interface for conguration 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 X9QR7-TF+/X9QRi-F+ motherboard accommodates 24-pin ATX power sup-
plies. Although most power supplies generally meet the specications 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 the power supply or motherboard, be sure to use a
power supply that contains a 24-pin and four 8-pin power connectors. Connect these
power supply connectors to the 24-pin power connector (JPW1) and the 8-pin power
connectors (JPW2~5) on the motherboard. Failure to do so will void the manufacturer
warranty on your power supply and motherboard.