onboard soundcard

Hello, I am very confused on what is better for my gaming experience. I have an Msi X470 Gaming Pro Carbon which has a Realtek Alc 1220, which is advertised as a decent and good onboard audio chip. My question is if I should buy a gaming usb headset with its own sound card like the Kraken...

So I built this PC myself a few years back. Probably like 3 or 4. Anyway, I go to turn it on after work and there's a small pop, like a short or blown cap or something and it won't power at all. I opened it up and can't find any noticible damage to any of the capa. Where do I start...