Intel DG41TX English Product Guide - Page 23

Fan Speed, Thermal, and Voltage Monitoring and Control, Chassis Intrusion, Power Management Features

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Desktop Board Features Fan Speed, Thermal, and Voltage Monitoring and Control Features of the board's fan speed, thermal, and voltage monitoring and control subsystem 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. • Thermally monitored closed-loop fan control, for all onboard fans, that can adjust fan speed according to thermal conditions. • Two thermal sensors (processor and a remote thermal sensor). 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 21 for the location of the chassis intrusion header. Power Management Features Power management is implemented at several levels, including: • Software support through the Advanced Configuration and Power Interface (ACPI) • Hardware support: ⎯ Power connectors ⎯ Fan headers ⎯ LAN wake capabilities ⎯ Instantly Available PC technology (Suspend to RAM) ⎯ +5 V standby power indicator LED ⎯ Wake from USB ⎯ Wake from serial ⎯ Power Management Event signal (PME#) wakeup support ⎯ WAKE# signal wake-up support ⎯ Wake from PS/2 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. 23

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Desktop Board Features
23
Fan Speed, Thermal, and Voltage Monitoring and
Control
Features of the board’s fan speed, thermal, and voltage monitoring and control
subsystem 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.
•
Thermally monitored closed-loop fan control, for all onboard fans, that can adjust
fan speed according to thermal conditions.
•
Two thermal sensors (processor and a remote thermal sensor).
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 21 for
the location of the chassis intrusion header.
Power Management Features
Power management is implemented at several levels, including:
•
Software support through the Advanced Configuration and Power Interface (ACPI)
•
Hardware support:
⎯
Power connectors
⎯
Fan headers
⎯
LAN wake capabilities
⎯
Instantly Available PC technology (Suspend to RAM)
⎯
+5 V standby power indicator LED
⎯
Wake from USB
⎯
Wake from serial
⎯
Power Management Event signal (PME#) wakeup support
⎯
WAKE# signal wake-up support
⎯
Wake from PS/2
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.