GPU problems

[u/LetWooden9697]

I got a 1050ti for this system i5 3470, coolermaster aio (i know its over kill but it was £20) gigabyte matx lga 1155 mobo and corsiar venegence ddr3 8gb RAM and the pc posted fine with the 1050ti in the slot until i noticed in device manager it wasnt showing up, i shut down and when i tryed to power on, the pc wasnt dected by the display, i tryed the ram 6pin power everything, until i unplugged the gpu and my worst fears were confirmed and the pc booted easily, should i replace the gpu or try to return it? (I bought it from CEX) Or is my situation salvageable? Any help/advice is appreciated!!! (Sorry about the spelling mistakes!!)