Intel DZ68BC User Manual download pdf (Page 23)

Desktop Board Features

Hardware Monitoring and Fan Speed Control

The features of the hardware monitoring and fan speed control include:

• Monitoring of power supply voltages to detect levels above and below acceptable

values

• Smart fan control provided by the legacy I/O controller, delivering acoustically-

optimized thermal management. Fan speed controllers and sensors are integrated

into the legacy I/O controller.

• A thermal sensor in the processor

• Thermally monitored closed-loop fan control, for all onboard fans, that can adjust

fan speed

Chassis Intrusion

The board supports a chassis security feature that detects if the chassis cover has

been removed. The security feature uses a mechanical switch on the chassis that can

be connected to the chassis intrusion header on the Desktop Board. See Figure 24, D

for the

location of the chassis intrusion header.

Power Management

Power management is implemented at several levels, including software support

through the Advanced Configuration and Power Interface (ACPI) and the following

hardware support:

• Power connectors

• Fan headers

• LAN wake capabilities

• Instantly Available PC technology (Suspend to RAM)

• Standby Power Indicator LED

• Wake from USB

• Power Management Event signal (PME#) wakeup support

• WAKE# signal wake-up support

• Wake from Consumer IR

• Wake from serial port

Software Support

ACPI

ACPI gives the operating system direct control over the power management and Plug

and Play functions of a computer. The use of ACPI with the Desktop Board requires an

operating system that provides full ACPI support.

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Intel DZ68BC User Manual Page 23