You would think that there’s nothing to know about RGB LEDs: just buy a (strip of) WS2812s with integrated 24-bit RGB drivers and start shuffling in your data. If you just want to make some shinies, ...
The RGB LED under the I/O shield on my new Asrock Z690M-ITX/ax won't turn off and is unresponsive. It has been green since I got the mobo two months ago and is on whenever there is power to it, so ...