Noctua np12 w/ ulv adapter on mobo header not spinning.

[mas5acre]

I have 3 noctua np12 fans on the mobo fan headers on my z87-gd65, all using the ulv adapters. When the computer starts they move slightly and then stop. They are obviously getting power. On my mobo I am unable to set them to a different rpm than 0.

Also worth noting is that my cpu cooler is also a noctua with 2 noctua fans using the ulv adapter on the mobo cpu fan headers and it works great. Though they are different model fans.

 

[Theocnoob]

Try the fans on 12V off molex leads and make sure it's not a problem with the mobo headers. My guess is that the fans are not getting enough power to spin up.

 

[Bobnova]

Not getting enough voltage, check that the motherboard is not set to control their speed as well.
You're using one adapter per fan, right?