My PC does not boot correctly

[DanielThompson]

what happened is I was installing my new zontac 750 ti. When I booted it up there was just a (.) In the top left hand corner. I then removed the GPU and got very similar results. I know for a fact this is not a hard drive issue because I brought the hard drive to my dads PC and threw it in there and it booted up my windows 7 just fine. Is there anything i can do?

THANK YOU IN ADVANCE

P.S. Sorry, I did not know the correct section to put this under.

 

[Dewey76207]

Check the connections to the HDD, make sure they are in the right places and are secure. Also, when you boot up do you see anything telling you to press any of the F1, F2, etc. keys?