Desktop is Indeacentre kb330b, lower end model with a pentium g630 and a CIH61M motherboard. I got a new CPU a core i3 3250 1155. When I start it up I get a black screen. The fans are turning and there is no beep. I went to website and it said no bios is needed for my model. I have a gtx 750 ti graphics card and a 430w psu.