Got a new motherboard and suddenly can't use 120hz

I have a Samsung Q7F tv which supports 1440p/120hz.

My old motherboard broke (Asus Strix z370-g) and I bought a new one (MSI MPG z390-something).
1440p/120hz worked flawlessly before, but now I…

Got a new motherboard and suddenly can’t use 120hz

Source: [H]ardOCP – Got a new motherboard and suddenly can’t use 120hz