My P70 is a little newer and it also runs on a 170W brick. And apparently if you go for the more powerful discrete GPU it needs a 230W one. On the other side,

My P70 is a little newer and it also runs on a 170W brick. And apparently if you go for the more powerful discrete GPU it needs a 230W one. On the other side, the Dell 7773 I was eyeing for personal use is a seventeen-incher that runs on a plain 65W.