Use onboard HDMI for 5.1 audio seperate from graphics card.
1 5Pcs M92T17 For NS Switch HDMI Video Base Motherboard Audio Chip Control IC Repair Accessories BGA rework station Soldering|Replacement Parts & Accessories| - AliExpress
Can I use DP for video and HDMI for audio on my motherboard? : r/buildapc
ASUS ROG Strix B550-F Gaming AMD AM4 Zen 3 Ryzen 5000 & 3rd Gen Ryzen ATX Gaming Motherboard (PCIe 4.0, 2.5Gb LAN, BIOS Flashback, HDMI 2.1, Addressable Gen 2 RGB Header and