I have a dell inspiron 6000. It will not power up. Te power cord is working fine and I discharched any voltage and the battery has chargd. But still when I press the power button it starts to power up(nothing ever displays on the screen before it shuts off) but then it just turns off and nothing happens. From all other forums I have read it sounds like a bad mother board. Any thoughts? A MB is only $100 bucks to purchase and I could problably put it in (just installed a new lid and power button on my studio) but not sure if it is worth it???? Stumped!