Have I broken my LED strip?

[BramVanhoutte]

I recently purchased a cablemod addressable RGB LED-strip. I kinda of messed up the installation few times. Connecting it to the 12v RGB header instead of the 5v addressable RGB header, probably backward as well. The strip didn't come with a manual but after a while, I figured it out (I think). It's now installed in the 3-pin "ADD HEADER" and I turned on lighting in the BIOS. However, the strip doesn't light up. Is it possible I straight out broke it by installing it incorrectly?

 

My MOBO is an ASUS STRIX Z370-E

[corrado33]

It depends. If it's a well build strip, it probably survived the 12V you put on it. If it's a cheap strip, you probably killed it with 12V. Especially since you put it in backwards.