Unibody MacBook Shutdowns

[Newton63]

I have a 2.4 Ghz Intel Core 2 Duo Unibody MacBook. Lately I have had shutdowns at no more than 75 C and fans at 5500 rpm (using SMC Fan control) and battery at 30% or greater. It is a sudden shutdown. Granted the fans keep going for a while on Skype but this is not hot enough for a thermal shutdown. What is this? Please advise.

 

[AlphaDogg]

Backup your data and go in to the apple store... They will either (a) replace your MacBook (highly unlikely) or (b) replace the logic board. But, there is a possibility that when they replace your logic board that they accidentally damage your hard drive (thus resulting in a new one). Take a video of the random shutdowns if at all possible, in case you can't reproduce it at the apple store.

 

[alust2013]

Backup your data and go in to the apple store... They will either (a) replace your MacBook (highly unlikely) or (b) replace the logic board. But, there is a possibility that when they replace your logic board that they accidentally damage your hard drive (thus resulting in a new one). Take a video of the random shutdowns if at all possible, in case you can't reproduce it at the apple store.

Not entirely sure that this is a logic board issue. Maybe try a battery calibration first.