Yes, the UART header is typically based on the RGB header.
Yes, the UART header is typically based on the RGB header.
Hello, I'm working on assembling my first PC and facing some challenges in choosing the correct motherboard. I need a case fan that has a three-pin 5V RGB header. Usually it features two pins on the left, a gap, then a third pin on the right. I’m evaluating two ASRock models: the B660m Phantom Gaming 4 and the B660m Pro RS. According to ASRock’s site, the Pro RS has four RGB headers—three at 5V—and the Phantom Gaming 4 doesn’t. Both have an extra connector labeled UART, which I’m trying to understand. Could that also work as a 5V RGB header even though it isn’t listed? Also, could it possibly serve as a 5V RGB header despite the absence of such headers on the Pro RS? Otherwise, I feel no major difference between these boards and don’t see the point in spending more for a larger VRM heatsink. I still want the RGB headers. Another question: I looked at the Biostar B660mx-e Pro and was surprised by its small capacitors and lack of support for "K" CPUs. I plan to use a 12400F, but I thought it might indicate limited support for high-power processors. Have anyone used Biostar motherboards before?
uart functions similarly to a serial port but operates at logic levels rather than voltage levels. Serial ports usually use +12V or -12V to represent logical 1 and 0. In contrast, uart employs '0V' (ground) as a logical 0, while any Vcc value (commonly +3V3 or +5V) acts as a logical 1. Considering it has only three pins—ground, transmit, and receive—I assume those are the main connections.