My MacBook has been having problems, i put in a new hard drive, have it running nice so far. But once I stop activity, for example, don't press any keys or move the mouse pad, the MacBook shuts off. Anyone know what it can be? how to fix it?
I had a similar problem with a MacBook years ago. If you didn't touch any keys or move the mouse for about a minute and a half it would do a hard shutdown like you had held the power button down for 5 seconds.
If I left something on the KB to keep a key pressed it wouldn't happen. Ended up being a faulty logic board for me.