AlienWare aurora r4 blacks screen, no ports work

I'm not sure people still reply on this forum. Recently my computer stopped working. It happened about 3 days ago. I was turning on my pc, but only the keyboard and mouse worked. The monitors were black. So I thought turning it off and on again would fix it. Later that day I felt like going on my pc to check stuff. But now not even the keyboard and mouse dint work either. My pc was on all fans function. Í checked the cpu, harddisk, motherboard, removed the gpu etc. My father also helped me. But nothing. Something weird also happens when I let be on for more then a minute. It begins to struggle. The sound It gives, just gets louder and louder. Specs= i7-4820, 2 tb harddisk, Windows 10, 16 gb of ram. PLS help.