2 of 5 led pc fans go dim 30 sec after start up

jackie.valentin

Prominent
Nov 17, 2017
1
0
510
JUST completed a Ryzen 5 1600 build with b350 tomahawk arctic board.The only problem I have is with 2 out of my 5 led up here fans.I turn on pc and everything is lighting up and working. After 30 to 40 sec the rear exaust fan and the top case led fans go dim,almost not even on. But fans are working normal. I checked all connections. I swaped led fans with fully working led f
an connecter and when swapped fan runs and led is normal.so it's not the fan.could this be a bad mother board?
 
Solution
I'm not too familiar with LED fan setup, but is there a setting in the BIOS or software in Windows that controls the brightness of the fans? Look around for some LED settings you can adjust. My guess is software is telling the fan LED's in the back and top to dim.
I'm not too familiar with LED fan setup, but is there a setting in the BIOS or software in Windows that controls the brightness of the fans? Look around for some LED settings you can adjust. My guess is software is telling the fan LED's in the back and top to dim.
 
Solution

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