Hi. My first post here. A friend of mine asked me to look at her Inspiron 7000, which refuses to start. When the power button is pressed, the three LEDs next to it sometimes flick on for a fraction of a second, then go off again and nothing happens. I don't hear fans or anything happening at all. The only sound i do hear is a faint whine like a power inverter when the AC power is connected. The battery charges normally, and the problem is the same even after i removed the optical and hard drives. The behavior is the same on AC power and on battery power.
Does anybody have any idea what could be the cause of this? I have a lot of experience with Macs, but this is my first time troubleshooting a Dell. Could this be a loose motherboard power connector or something?
I don't mind taking the unit apart, but i want to know what to look for, or if it's a known problem or something.
ps. My friend mentioned that previous to the computer going totally dead, it had shut itself off unexpectedly several times. Not sure if that helps or not, but that led me to think of a loose connector somewhere..