Hello,
I have an HP Slimline PC s3020 where I no longer recieve a videosignal for my screen. It has no video card. It was useing onboard video. I tried to install a video card but no luch. Any help would be greatly appreciated.
Check for a loose cable on the board or the power supply connections. But you may have a bad power supply or motherboard. There's a troubleshooting faq available, but I can't post links.