Computer does not output video after BIOS update

Vexerino

Reputable
Aug 19, 2015
2
0
4,510
So I've had my computer for a while with Windows 8 (Not the originally installed OS), but I decided to format it and reinstall Windows 7 because, well, you know. After that I was unable to install it, so I updated the BIOS since the computer came with, and was probably meant for, Windows 7.

Now for whatever reason video will not be outputted. I have tried al sorts of monitors with different cables, but it just does not work. It beeps once as usual when it starts up, any help please?

Sorry if there are any spelling errors, I'm on mobile.

Edit: I suppose I should have mentioned it's an Alienware x51 with a core i5 and a GT 545. I do not know the mobo model.