Trying to get onboard video to work after removing 5770s

I have a biostar 790gx a3+
http://www.biostar.com.tw/app/en/t-series/introduction....

and a 23 inch monitor with dvi and vga connectors

I know I wasn't thinking when I sold my two 5770s earlier today I just took them out without turning back on onboard video

I never really used the onboard before, so anyways what I did to try and fix it I just took out the battery off the motherboard for a few mins then put it back in.

still see nothing when i start up the cpu just a black screen it doesnt say "no signal" but its just black I don't see anything..
i'm using the dvi connector to plug directly into my onboard just incase anyone asks.

please help i just want something to tide me over while I put my money into my accnt tomorrow and order my 5870   lol

i had onboard video disabled in bios and I had dual gfx cards enabled with 75 per pci e enabled btw