weird static red screen after new mb install

Am at work so I cant be too detailed, but my motherboard scrapped out on me, went today to change for a new one, I didn't have a chance to format first so I just popped it in.

Now all I see is red static and flickering screen, windows loads up but it'd almost impossible le to use.
I can use the onboard video card but I rather use my nvida..via hd
Now I would format it, but here's the second issue, I can user the dvd drive in windows, however it will not let me boot up while starting pc, I even set it to main boot in bios..

So I have no idea what to even try to do next...

Any help would be great!,