So I recently purchased a motherboard(msi z87-g45), a psu(corsair 750w), and a mid-tower ATX case. Now when I plug my HDMI into my graphics card and power on my computer, the fans go crazy, like the top of their speed and everything appears to be up and running except my monitor displays a black screen, but it recognizes the signal. So I tried to plug it into my motherboard and then only my CPU and psu fans work, and my monitor displays the same black screen.