HP Compaq Evo n610c Notebook "pc wont turn videocard power" Questions

...wont start. the power light and blootooth/wireless light turn on and the booting makes a sound but never turns the pc on. i bought another charger but that did not help. iam very frustrated. please ...

...wont come, but sometimes it comes . the fan rotates for sometimes and gets off It is likely that the ball bearings in the fan have started to go, and it is no longer properly cooling the system. In ...