M4400 start up problems

Hello

My M4400 has startred delevoping a problem where when starting the laptop up would result in the light just flickering and the fan would spin for 3 secs and a error code would display on the front lights of the m4400, but waiting a few mins and pressing the on switch and the laptop would start, this got longer to a stage where it wouldnt work so tapping the back/sides and keyboard area the laptop would start when pressing the on button, this week this method has got worse where i would try these methods for the first 10 mins but nothing would happen, so leaving them4400 plugged in and tapping the back/sides and front of the keyboard harder would start the laptop up.

I had upgraded the m4400 from a p8700 to a Q9000 and i thought this was the problem as the m4400 worked flawlessy for the first 3 months, i then yesterday replaced the Q9000 back to the P8700 still the problem persist, i even tried reseating the ram again no luck, so i replaced the p8700 with the Q9000 again.

when the m4400 on button is pressed, the fans spin for 3 secs then the 9 flashes, while the A and Arrow down stay stactic

Thanks