So i was working on that PCG-V505EXP Sony vaio. I finally got the harddrive out and switched it out for one that works. When i put the computer back together... It would not power on. Most of the time I can see the light turn on for 1-2 seconds and then it dies out. Sometimes i dont even get power! What the heck is going on. I need to get this computer to work. I made a promise... I don't thinik it is the power Adapter since the power on light on the adapter still comes on. And the laptop turns on for 1 second. any ideas? Any ideas would help.