This is a Acer Aspire 5100 it has a 15.4 inch screen,1gb of ram 120gb hdd,wi-fi,and dual layer dvd rw,when you switch on the laptop starts the fan and it shows lights on the top but the screen does not activate,now what I know about laptops could be written on the head of a pin but I have been told that the reason could be because it has been DBAN wiped so it will need a operating system installed before it will boot up,please bear in mind what I have said about my knowledge,it comes with the hdd,memory and.