I have a Toshiba Satellite L745-S4210 and I'm not sure if I should use 1.3v or 1.5v ram. Which voltage should I use? Here is a photo of 1 out of the 2 stick of ram in my laptop as of now. http://i.imgur.com/NZck9Vm.jpg Will a 1.5v work in a 1.35v slot?