1-Install the NVIDIA GeForce RTX 30 Series graphics card into your PC, and then add any needed drivers.
2-Connect your PC to TV HDMI port1 or 2 with a certified HDMI 2.1 cable for high frame rate 120hz video.
3-Check your TV software and upgrade it to latest.
4-Change respective HDMI port capability to match your application in TV settings>General>HDMI UltraHDTo change the settings, switch to the HDMI source first.
-Set Optimal (Auto Game) to enable TV to support Variable Refresh Rate video. This is recommended setting for VRR gaming.
-Set Optimal or Optimal (Auto Game) to enable the highest quality HDMI signal for 4K Ultra HD and HDR content (up to 4K120 RGB 4:4:4 or YCbCr 4:4:4/4:2:2/4:2:0, 10 or 12-bit HDR).
-Set Standard allows maximum up to Ultra HD (50 Hz or 60Hz) YCbCr 4:2:0 signals.
5-Change TV picture style to Game or HDR Game for best gaming experience with lowest video latency.
6-If you want to switch off VRR function, please switch off it in PC graphics card settings. Then you can change TV HDMI port UltraHD to Optimal to have best fixed frame rate experience.