HP Pavilion DV7-4073nr Won't Turn On

Hello, My grandmother recently dropped off her HP Pavilion DV7-4073nr Laptop because it would not turn on. I'm not saying it doesn't boot, I'm saying it simply just would not turn on, not even to the BIOS screen. (No, I'm not an idiot, I plugged in the thing.) When I press the power button, I just hear the fans spinning, and it abruptly turns off. I've tried this several times already and it...