Intel DG41TY Product Guide - Page 21

Hardware Monitoring and Fan Speed Control, Chassis Intrusion, Power Management Features, ACPI - ram

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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 • Fan speed controllers and sensors integrated into the legacy I/O controller • Thermal sensors in the processor, GMCH, and ICH7, plus an onboard remote sensor • Thermally monitored closed-loop fan control, for all onboard fans, that can adjust fan speed or switch the fans off as needed 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 ⎯ Power Management Event signal (PME#) wakeup support ⎯ WAKE# signal wake-up support • ENERGY STAR capable 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. 21

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Desktop Board Features
21
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
•
Fan speed controllers and sensors integrated into the legacy I/O controller
•
Thermal sensors in the processor, GMCH, and ICH7, plus an onboard remote
sensor
•
Thermally monitored closed-loop fan control, for all onboard fans, that can adjust
fan speed or switch the fans off as needed
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
⎯
Power Management Event signal (PME#) wakeup support
⎯
WAKE# signal wake-up support
•
ENERGY STAR capable
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.