Anyone got any ideas what's wrong with it ? The parts should all be compatible no issue there, and I didn't assemble it myself so no amateur mistakes there, got it built by some Asian PC store I know. I have tried both TV and Monitor but nothing is being displayed. PC "seems" to boot up fine.
What type of connector are you using?
If you're using a graphics card make sure you're connecting directly to it. If you already are, leave the card in the PC and connect to the motherboard video output and see if there's an option to disable the on board video in the bios.