Wednesday, April 22, 2020

Laptop Fan Wiring

Image Source

Wiring Color Code


Red: Power
Black: Ground 
Yellow: Fan Speed Sensor (Tachometer)
Brown: Fan Speed Control (PWM*)

*PWM: Pulse Width Modulation

 

How to make your laptop fan run at max speed at all times:

Cut the fan speed control wire (brown wire). The color and ordering of the wire may vary by manufacturer. Typically red is power, yellow is sensor, and black is ground... leaving the fourth color to be the speed control.
 

Specifications

The above information is accurate for

Lenovo IdeaPad 320-15ABR
Machine Type Model: 80XS00DJUS
Processor: AMD A12-9720P
Graphics: Integrated


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