Why can't the 760k use the on board video on the mainboard?

Kendall J

Honorable
Jan 23, 2014
11
0
10,510
I just want to know why the 760k wont use the onboard video on the mainboard? Why does it need a seperate one if one's already on it? I just want to cut my computer on and see the thing start up DX DX DX