+ 0 Votes Dell use very marginal parts at the best of times OH Smeg 6 years ago A Lighting Strike isn't one of these. I would hazard a guess that the Power Supply, M'Board, CPU, RAM and possibly the HDD have suffered a major over voltage event. The correct way to proceed here is to pull the unit apart and begin by testing the HDD/s and Optical Drive/s to see if they actually work and then work back from there. Just remember that if something actually works with an event like this happening the different parts will have suffered some major degrading and you can give no guarantee as to just how long the unit will actually work or any part of the unit will continue to work. Just make it clear to your customer that you can not guarantee anything that you have not replaced and even then you can not guarantee that something that appears to work now will not fail latter and damage some of the new parts that you have fitted. Col + 0 Votes Power Out donmck 6 years ago Same thing happened to me, did anyone ever determine the problem? + 0 Votes Same problem! dentondarrell 6 years ago I'm having the exact same problem. I replaced the power supply, removed all the extra peripherals and still nothing. I guess my next step will be replacing the mobo. Keep me posted if you find out the root problem and I'll do the same. + 0 Votes Power Out donmck 6 years ago Same thing happened to me, did anyone ever determine the problem?