Hello i got a 3440x1440 75hz monitor from a friend who didn't use it but I'm using it now i can use it fine on 3440x1440 but i only get to 50hz even though the monitor native speed is 75hz and i cant find a way to change it i have installed the drivers for it I'm using the correct HDMI port that supports the 75 hz input. i installed the newest drivers on it too for the gpu
Setup:
Monitor Samsung sj55w
Cpu Ryzen 7 3800x
Ram corsair vengeance 32gb 3200mhz
Gpu Sapphire vapor x r9 280x
Motherboard Rog strix b550-f gaming