I recently bought a new case, new heatsink/fan for CPU and GPU. The GPU fan and heatsink went on well, the CPU HS/Fan didnt go on as well, mainly becuase I couldnt get the old backplate off. Also, when I removed to old HS/Fan the CPU came right out of the socket, no pins where bent, the bottom looked perfect. I guess I was lucky. So after I figured out I couldnt get the old backplate off, I decided the old screwmounts would work fine with the new HS/Fan. So I just screwed the old HS/Fan into the existing screwholes untill it was laying perfectly ontop of the CPU. I also put Artic silver 5 on. I was kind of weary becuase I wasnt using the backplate that zalman provided, but The cpu was on there pretty good. After I got my motherboard in the case and everything else in I decided to turn it on to see if it works (no monitor attached). It fired up and all the fans started spinning, the harddrive made some noise and the HDD led and power led lit up. I thought that it must have worked. I took it and set it up with the monitor... But nothing showed on the screen this time. The computer looks like it is working by looking inside the case, but no output on the monitor. Also, I touched the base of the CPU/heatsink... no heat emitted. It doesn't heat up as one would think a working CPU would. What is, most likely the problem? I was thinking... Broken MB Broken CPU All help is appreciated; feel free to ask any questions. Thanks.