X6QT8/X6QTE+ User's Manual

Thermal Management/CPU VRM Overheat

When the CPU reaches 700 C and above (Overheat), the CPU will go into throttling state. CPU Voltage will decrease to reduce CPU power consumption. When the CPU temperature reaches 780 C (*Default) and above, the Overheat LED and the Alarm Buzzer will be turned on in addition to the slowing down of the CPU. Once the CPU temperature returns to normal, the CPU voltage will return to normal as well, allowing the CPU to run at maximum speed.

VRM Protection

When the CPU VRM temperature reaches the threshold preset by the user in the BIOS, the system will go into TM (Thermal Management) mode. The CPU will slow down and the VRM current will drop to prevent the VRM from overheating. (The settings are: 880C, *980C, 1080C.) (*Default)

Auto-Switching Voltage Regulator for the CPU Core

The auto-switching voltage regulator for the CPU core can support up to 20A current. This will allow the regulator to run cooler and thus make the system more stable.

1-5 ACPI Features

The ACPI (Advanced Confi guration and Power Interface) specifi cation defi nes a

exible and abstract hardware interface that provides a standard way to integrate power management features throughout a PC system, including its hardware, op- erating 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. This also includes consumer 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 confi guration control. ACPI leverages the Plug and Play BIOS data structures while providing a processor architecture-independent implementation that is compatible with Windows 2000, Windows XP, and Windows Server 2003.

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.

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SUPER MICRO Computer X6QTE+, X6QT8 user manual Acpi Features, Thermal Management/CPU VRM Overheat, VRM Protection