Hp dv8000 wont start up - Computers & Internet

I had the same problem on two DV8000s. I tried everything mentioned on every forum. Then I read where someone had a bad power adapter that caused their problem. I had tested this one and had the proper voltage but it still didn't work. I broke the case apart and checked for continuity from the laptop connector end to the board in the adapter. There was no continuity on the positive side. The wire was broken in the strain relief at the adapter where the cord came out. I cut it off and restripped the wires and reconnected it and tested it again and had continuity. Then I plugged it in and tried it on the laptop and it has worked great ever since. I bought two new power adapters and the problem was resolved on both laptops. I hope this helps someone. Good luck. Mike