I ruined my 2007 MacBook Pro doing what should have been a routine repair and maintenance Sunday morning and made a 4-hour round trip to Ann Arbor to pick up a brand new one.
The old one was a little slow but ran the latest Mac OS and all the software I needed. I was eyeing a new one but thought I'd wait until the old one crashed.
The optical drive had failed. I have a choir rehearsal CD burning project this coming week, so I'd ordered a replacement rather than open up the old one. The new one slid in easily. The fans had been noisy, so I moved them aside to blow out some dust. One had to be disconnected.
Had I RTFM, I would have known to pull on its wires. Instead, I used a blade as a spudger and ruined the receptacle mounted on the logic board. No left fan, I assumed, means no certainty that the computer will cool adequately, and it often runs hot.
I guess I was looking for an excuse.
The little receptacle shouldn't be hard to find, but I've no successful experience with surface mount soldering.