Alienware M14X authentic Gaming Laptop Black

Product Name: Alienware M14X authentic Gaming Laptop Black
So I was stupid enough to trust a pawn shop a few years ago and took their word that this Alienware laptop worked. It did have a power supply as you can see from the photos but it's in bad condition. They said the authentic power supply doesn't work but the laptop does. Anyways I tried using my Alienware 17 charger to give it power. Needless to say it didn't turn on. I paid $300 for it like an idiot back in 2020 and it's just been sitting around. Idk what is wrong with it but it looks to be in good condition. I'm also not quite sure what the specs are on the laptop.