Black screen of death

So when I turn on my laptop I get greeted with a black screen, some trouble shooting I have done it trying to reinstall windows (I still saw black screen), when i press caps lock nothing happens, when I try to open bios nothing happend, i have tried reseating ram, using a differant hard drive, doing a hard reset, took out the cmos battery then put it back in, tried plugging it into moniter with hdmi and vga, nothing works,

Any help would be appreciated.