asus help!!

[vallejo bitch]

guys i got an asus A7N8X-E Deluxe and i jus bought a gforce 6800 128mb for it and it doesnt work?? when i plug my monitor into it, it jus says no signal check monitor connection. can someone help me out here i went into the cmos and changed what little i could but is it the video card my mobo or my monitor? HELP PLEASE!

 

[ty1er]

did you Plug in the 4pin power connector on the back end of the card?