I have a customer laptop won't power on. The report from the customer was that he went to plug the power in and put it in the wrong port and he said that he heard some sort of craking noise. The laptop will not power on doesn't matter if the power cable is in or not. I have tryed removing the battery for 5 min's. Removing the RAM Then Removing the hard drive. In all cases the it didn't power on, All that happens when you press the power button is that the light will go on for about 5 seconds and then turn off. There are no beeps. No sign of damage anyway. The laptop is a dell latitude D600.