[SOLVED] Led on fans turn off after startup

[XMad_Hatter]

Hey guys, need some assistance. I recently installed blue led uphere fans(3 pack). When I boot the pc up, after 30s or so, the fans still work, but the led turns off. Anyone have a fix?

 

[Zerk2012]

Those fans are powered by the same connector that power the LED's sounds like their just defective.

 

[XMad_Hatter]

Those fans are powered by the same connector that power the LED's sounds like their just defective.

I’ve actually figured it out after tweaking in the bios. The fast the fans spin, the brighter the lights are. Weird, but it works. I went from default 720 to 880 rpm for fans to light up.

 

[CountMike]

I’ve actually figured it out after tweaking in the bios. The fast the fans spin, the brighter the lights are. Weird, but it works. I went from default 720 to 880 rpm for fans to light up.

3 pin fans vary the speed thru changing voltage which also changes voltage to LEDs. LEDs are made for 12v operation so when you lower the fan speed they get lower voltage and dim or turn off.