Recently my PC harddrive died so I replaced it and install windows....everything is good. Things get weird and now it'll power up fine but my display won't work. I unplug everything make sure it's dust free and reseat everything. Power it up everything is fine and display works. Restart it to test it out and sometimes it works(the display) and sometimes it doesn't. Tried one last time and no matter how many times I restart still black screen. I give up and concede to build a new PC. 2 months go by and Wednesday I powered it up on a whim and it's working fine.....until today. I'm thinking its video card but it sounds like it's getting full power...
remove or disable your graphics card and use on board graphics.