I have a Dell XPS 15 laptop which I'm using to test some spare SODIMM I got from work. When I put in the same model of RAM (Corsair CM3X8GSDKIT1066) into both of the slots, the computer would not go past post. In fact, I see some video artifacts and the laptop then powers off. I know for sure both slots work because it already have 2x4GB Samsung which I been using for at least 1 to 2 years. I tried powering on the laptop with each of the stick of Corsair and it worked and I'm in the middle of testing one at a time. Could it be some kind of BIOS setting (very limited to start with) I missed or is there some kind of reset procedure I need to do?