New gpu but vga adapter being used

TheMaster262014

Reputable
Jan 6, 2016
46
0
4,540
I just bought a Gigabyte Gtx750ti and fitted it in my pc. Started it up, bios screen freezes, i get a few short beeps and then a black screen with white underscore then windows loads up and uses the standard vga adapter. I installed the drivers for the card and restarted but got same results. What could the problem be?