Dell Precision 7510 won't start

Hello all,

I have a 2016 Precision 7510 that was working great... until it wasn't. Upon turning it on, the hard drive would spin up, and then it would suddenly stop and all life would leave the machine. No codes, sounds, or lights. I ended up taking it apart and checking all connections. After putting it back together I tried it again and I got a code for bad ram. Upon switching them in their slots it worked just fine until it took a little fall several days ago. Same symtoms, but this time there is no change after checking all connections. Any advice is appreciated. 

Thanks.