Acrtic freezer a30 pwm controlled fan not detected by asus a88x plus

Toggle sidebar Toggle sidebar
V

veniteo

Honorable
Jan 5, 2014
50
0
10,540
title really says everything. i cannot manually change my fan speeds and the cpu fan does not report rpms to the borad, as i boot into a cpu fan error, (however the fan works and changes speed with load)
 
Solution
P
If your mobo reports a fan error and the BIOS cannot detect a fan speed, there is a problem with the speed signal's path to the CPU_FAN port. The speed signal is a pulse train (2 pulses per rev) sent from the fan motor to the mobo on Pin #3 of the port. To identify pins, the mobo port has a tongue sticking up in the area of pins 1-3, and not extending to the Pin #4 area. Wire colors are normally: #1 Black (Ground), #2 Yellow (+12 VDC), #3 Green (Speed signal), #4 Blue (PWM signal).

Check for poor wire connection, bent pins, loose connector in the female socket on the end of the fan's wires.
Sort by date Sort by votes
If your mobo reports a fan error and the BIOS cannot detect a fan speed, there is a problem with the speed signal's path to the CPU_FAN port. The speed signal is a pulse train (2 pulses per rev) sent from the fan motor to the mobo on Pin #3 of the port. To identify pins, the mobo port has a tongue sticking up in the area of pins 1-3, and not extending to the Pin #4 area. Wire colors are normally: #1 Black (Ground), #2 Yellow (+12 VDC), #3 Green (Speed signal), #4 Blue (PWM signal).

Check for poor wire connection, bent pins, loose connector in the female socket on the end of the fan's wires.
 
Upvote 0 Downvote
Solution
You must log in or register to reply here.

TRENDING THREADS

Latest posts

Moderators online

Share this page

COMPANY
RESOURCES
FOLLOW
Top Bottom