I also checked out the motherboard and CPU compatibility, and it says your motherboard is a socket LGA775 with intel support, and the E6600 Conroe cpu is a socket LGA775, also an intel, roughly the equivalent of a pentium 4. The motherboard should support it. But the other problem could be that you haven't mounted the motherboard properly to the case (the copper/gold coloured stands need to be screwed into the case, and the motherboard screwed to these). I had someone who didn't mount it properly, and shorted out part of the motherboard. It was nearly impossible to see, but would only go about 3 seconds into installation before shutting down because it shorted out the cpu fan power. Hope this helped.