Contribution d'origine par : oldturkey03 ,
BigPapa76 \, before tearing it apart connect an external monitor and see what it displays. If it does not, then read my answer to a very similar question :" this series has an issue with the GPU failing. Sometimes a reball can fix it, other times you may need a new logic board. Here is my answer to a [http://www.ifixit.com/Answers/View/33368/will+not+power+on|similar question] :" This is a well documented prob with this series of notebooks and if you do a search on the Internet you'll find lots and lots of unhappy and frustrated people. The problem is the motherboard, and the symptoms include loss of bootup, VERY slow bootup, WiFi stops working, etc. is simply that the MOBO board overheats and fries the video driver chip. The cooling design of this PC is inadequate. You might try this to verify. 1. Take the battery out and unplug the charger 2. With the computer lights OFF, press and hold down the power button for 15 seconds 3. Plug the charger back in and start-up the computer to fix the problem you will have to reflow the graphics chip. If an external monitor displays properly, you have a bad LCD.