I am not a regular member of this forum and logged on today because I really need help. Ive reposted this in several forums (HP, Overclockers, etc) and have not received any decent answers. I have tried various troubleshooting techniques and am about to go to an expensive laptop repair place which may or may not fix the issue.

Here is the story. I wanted to upgrade my old HP HDX18 to the Q9100 processor which is the highest one listed in the service manual. I studied the manual intently and made sure this was an ok upgrade.

I disassembled the notebook exactly as it...