System and method for testing a fan interface of a motherboard

Details System and method for testing a fan interface of a motherboard System and method for testing a fan interface of a motherboard

2011-08-02

2011-08-02

Wachsman, Hal D (Department: 2857)

Data processing: measuring, calibrating, or testing

Measurement system

Performance or efficiency evaluation

C702S079000, C702S078000, C702S117000, C714S742000

Reexamination Certificate

active

07991584

ABSTRACT:
A system for testing a fan interface on a motherboard is provided. A fan simulator receives a PWM signal from a fan interface of the motherboard, converts the PWM signal to a TACH signal and outputs the TACH signal to a computer via a fan connector. A difference between the actual rotation speed from the TACH signal and a preset desired rotation speed of the fan simulator is determined and analyzed by comparing the difference with a preset allowable error margin.

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