Sapphire 7870 problem

07ChardieMak18

Honorable
Nov 30, 2013
32
0
10,530
I just got my Sapphire 7870 today. I tried installing it to my PC by removing my old videocard then inserting the new video card. I connected the HDMI ports from the monitor to the new videocard. The problem is my PC wont detect my video card. I already tried installing the drivers needed online. And my desktop wont fit my monitor(its too big!)
 

07ChardieMak18

Honorable
Nov 30, 2013
32
0
10,530


Yes I connected the 2 6 pin power connectors.. and my device manager doesnt display my video card. I tried connecting the HDMI port to the motherboard instead and the desktop looks fine its not overlapping the monitor