The audio solution is hidden right under the front side of the PCIe slots and based on a Realtek ALC 1220 CODEC and a combination. You can spot higher grade capacitors, suited for high-grade audio equipment to provide rich sound in the bass range and clearer high frequencies.
Check the heatsinks, pretty cool gear slash industrial design. Take note of the metal covers on the x16 PCI-Express slots as they show off a bit. They provide sturdier and stronger slots, handy for very heavy graphics cards.
Two connectors are present to power that processor of yours one 4 and one 8-pin, just using one 8-pin connector is plenty though, in fact, you do not need to use both of them.
The motherboard phase power delivery design for the processor based on digital power controllers. The Z390 Taichie Ultimate has 12 IR Digital VRMs. We do not expect this board to run hot at all under load. Nice and clean looks with the dark capacitors btw.