Games crashing

[148-3_]

I have tried to play cod warzone and fortnite on my pc but it kept on crashing. I was using a gtx 970 that I bought used at the time and I was playing the games at minimum settings and 1080p. I then bought a new 1050 ti thinking that that would fix the issue, but everything still crashes. This is a new pc build and I tried running the games before overclocking my cpu and enabling Xmp on my ram but it still keeps on crashing. Call of duty gives an open gl error and fortnite gives me the switch to direct x 11 crash. My full pc specs are: ryzen 7 3700x, 32gb t-force 3200mhz memory and msi b550 pro vdh Wi-fi motherboard.