Limits on A-RGB fan headers
Limits on A-RGB fan headers
You're trying to link several PWM fans to your motherboard using an Arctic case fan controller. The manual mentions addressable LED headers, but the details are a bit unclear. From what you described, it seems the board can handle up to 5V/3A or 36W per LED strip. Your concern is whether each header can only support a certain total current—likely around 1A per header for fan daisy chaining. Since each fan draws about 0.4A, you'd be limited to two fans per header, which might affect your setup. Clarify if the headers are designed for parallel or series connections and check the official specs for exact limits.
For ARGB devices the specification lists 15W, not 36. This applies to the 12V RGB header(s). I’m still unsure if this applies to each header or all three, so it’s a really good question. I’d appreciate any advice—documentation usually doesn’t go far beyond what you already have, honestly. I might even consider sending Asrock an email about it. That’s a solid point.