ML 120/140 LED Brightness Question

[HungryHamster]

Hey everyone,

 

Why is my Corsair ML 140 changing brightness depending on how fast I have it running? Is there a way to change this so it's always at maximum brightness, but not at maximum speed?

 

I knew this was an issue with the older SP and AF models, but I read in a review that the ML fans "are powered by a constant 12 V (under PWM control, anyway) and so will not change brightness with fan speed control." 

 

Any help would be appreciated.

 

Thanks.

[bgibbz]

Do you have the fan connected to a pwm port? Sounds like the fan is using voltage control. 

[HungryHamster]

8 minutes ago, bgibbz said:

Do you have the fan connected to a pwm port? Sounds like the fan is using voltage control. 

Yes, I think so. It's connected to the one that's circled in red in the center middle in this picture:

 

http://www.tweaktown.com/image.php?image=imagescdn.tweaktown.com/content/7/5/7580_06_asus-maximus-viii-formula-intel-z170-motherboard-review_full.jpg

 

I did some reading on my mobo and it says "all fan headers are PWM or DC mode and can be configured in the UEFI or through Windows." So maybe I have to switch it from DC to PWM in the bios or something? I'm not sure if that makes sense.

[bgibbz]

3 minutes ago, HungryHamster said:

So maybe I have to switch it from DC to PWM in the bios or something? I'm not sure if that makes sense.

Yes, switching between pwm and voltage control is a uefi feature. It should be set to pwm as default however.