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Desktop Board Features
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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
• Intel Quiet System Technology fan speed control, delivering acoustically-optimized
thermal management
NOTE
Memory must be installed in the Channel A, DIMM 0 socket to enable Intel
Quiet System Technology.
• Fan speed controllers and sensors integrated into the ICH9DO
• Thermal sensors in the processor, GMCH, and ICH9DO, plus an onboard remote
sensor
NOTE
The minimum thermal reporting threshold for the GMCH is 66 °C. The GMCH
thermal sensor will display 66 °C until its temperature rises above this point.
• 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 23 on
page 51 for the location of the cha
ssis 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
⎯ Wake from USB
⎯ Power Management Event signal (PME#) wakeup support
⎯ WAKE# signal wake-up support
• ENERGY STAR capable