SUPER MICRO Computer X6DHE-G2, X6DH8-G2 manual ACPI Features, CPU Fan Auto-Off in Sleep Mode

Chapter 1: Introduction

CPU Fan Auto-Off in Sleep Mode

The CPU fan activates when the power is turned on. It continues to operate when the system enters Standby mode. When in sleep mode, the CPU will not run at full power, thereby generating less heat.

CPU Overheat LED and Control

This feature is available when the user enables the CPU overheat warning function in the BIOS. This allows the user to define an overheat tempera- ture. When this temperature is exceeded, both the overheat fan and the warning LED are triggered.

System Resource Alert

This feature is available when used with Supero Doctor III in the Windows OS environment or used with Supero Doctor II in Linux. SDIII is used to notify the user of certain system events. For example, if the system is running low on virtual memory and there is insufficient hard drive space for saving the data, you can be alerted of the potential problem.

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1-5 ACPI Features

ACPI stands for Advanced Configuration and Power Interface. The ACPI specification defines a flexible and abstract hardware interface that pro- vides a standard way to integrate power management features throughout a PC system, including its hardware, operating system and application soft- ware. 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, tele- phones and stereos.

In addition to enabling operating system-directed power management, ACPI provides a generic system event mechanism for Plug and Play and an oper- ating system-independent interface for configuration control. ACPI lever- ages the Plug and Play BIOS data structures while providing a processor architecture-independent implementation that is compatible with both Win- dows 2000 and Windows NT 5.0.

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