Wasn't sure what topic this goes under. Have a Dell Inspiron N7110 not turning on. Bought a new battery but that didn't do it. With AC cord plugged in, no lights at all. Tried the pressing start button for a minute fix, but that didn't do it. Any other tests I can do? Can I test motherboard, or is my next option, just to replace it? Can you replace power supplies on laptaps, like on PC's? Let me know what you think I should do next?