Intel SLA9X Datenblatt PDF herunterladen (Seite 116)

Balanced Technology Extended (BTX) Boxed Processor Specifications

116 Datasheet

the motherboard that sends out a PWM control signal to the 4

pin of the connector

labeled as CONTROL. The fan speed is based on a combination of actual processor

temperature and thermistor temperature.

If the 4-wire PWM controlled fan in the TMA solution is connected to a 3-pin baseboard

processor fan header it will default back to a thermistor controlled mode, allowing

compatibility with existing 3-pin baseboard designs. Under thermistor controlled mode,

the fan RPM is automatically varied based on the T

inlet

temperature measured by a

thermistor located at the fan inlet.

For more details on specific motherboard requirements for 4-wire based fan speed

control, refer to the appropriate Thermal and Mechanical Design Guidelines (see

Section 1.2).

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Intel SLA9X Datenblatt Seite 116