oh okay thank you. I bought these led lights for my case and they're all wonky. the controller doesn't work, and now my rgb fans won't change color. I might just have to go in and rewire everythingI've never encountered one. Pretty much all the AM3+ motherboards were designed back around 2012 when that wasn't a thing. Even the number of AM3+ motherboard that had RGB lighting at all is relatively light; it was few enough that boards like the ASUS 970 Pro Gaming Aura put it in the name.
Honestly, even if such a thing does exist, it would be quite obscure and difficult to find in the secondary markets at this point. Not to mention the wisdom of dropping $150+ on an antiquated 2012 platform just to get addressable RGB headers.