Originally Posted by DavidMcCann
You shouldn't need a graphics card. I've never had one: they're mostly for gamers.
If you want to see anything on your monitor you need for sure a graphics card, wether it is onboard or not.
Even very old graphicscard are mostly supported by the vesa-driver, so you should be able to install and run Ubuntu.
Have you removed the faulty card?
Can you see your BIOS-post (means, is it displaying anything when you power on the system)?
If not, are you sure it is your graphicscard that is faulty?
I would suggest to do at least a CMOS-reset, search in your motherboard's manual for something like "clear CMOS".