Okay, I did the build and substituted a celeronD til the quad core came in. Everything works fine with the celeron but with the quad core installed (Brand New) all I get is the system powers for a split second but thats all that happens. The PSU is 650w new. Everything is compatible and the system still works with the celeron installed. I read that it could be the graphics card. I'm gonna do a thorough troubleshoot tommorrow as it's too late now. If anyone has any ideas what the problem could be, please post, it would be really appreciated. Will update and check for possible solution after I go through the process of elimination.