7 Important Technology Information

declares the temperature threshold the OS uses to decide when to start/stop active cooling devices. See section ETX®-CD onboard Fan connectorfor more information about the ETX®-CD onboard Fan control.

Passive Cooling

The OS reduces the power consumption of the processor by throttling the processor clock to reduce the temperature of the thermal zone. Passive cooling devices (processor) produce no noise. The passive cooling trip point declares the temperature threshold where the OS will start or stop passive cooling.

Critical Trip Point

The OS performs an orderly, but critical, shutdown of the system when the temperature reaches the critical trip point.

7.5ETX®-CD onboard Fan connector

This section describes how to connect a fan to the connector located directly on the ETX®-CD. With certain BIOS-settings it is possible to control the fan depending on the Active Trip Point temperature. The fan switches on/off depending on the adjusted Active Trip Point temperature. In order for this feature to function properly an ACPI compliant OS is necessary.

Note:

The ETX® CD can not control the revolutions per minute (R.P.M) of the fan.

 

 

7.5.1Schematics of Fan control

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Part number (Molex) J1:

53261-0390

Mates with:

51021-0300

Crimp terminals:

50079-8100

Kontron User's Guide ETX CD

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Intel ETX CD manual ETX-CD onboard Fan connector, Schematics of Fan control, Passive Cooling, Critical Trip Point
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