macbook heating up and turning off
i have a white macbook 2ghz. sometimes while charging and lid closed it heats up and when i open lid it will not start up from sleep (screen set to sleep, hard drive never sleeps) and i need to power off then on. when it charges and does not get hot (most of the time).... when i open lid it wakes from sleep normally. anyone know what the problem is? battery? fan? about to die? when it is hot i can not wake from sleep by opening lid or hitting space bar.
Comments
Take a look at your system log to see if this is the case. Look for something along the lines of "emergency overtemp warning, going to sleep".
First thing is, where are you charging the mac? on a table? on carpet? in a bag? Anywhere with poor air circulation is definately a bad thing.
-Try charging it with the screen open. That will allow a lot of heat to escape through the keyboard.
-Can you hear the fan spinning up when the machine is getting hot? if not, there could be a problem with it. (or possibly the temp sensors that should tell the fan to spin up).
-The battery may be on it's last legs. All batteries will heat up to some degree when they're being charged. If it's excessively hot, it might suggest a problem with it.
Try running the diagnostics on the install DVDs. They're not an omnipotent cure-all, but they might shed some light on it.
I had a power supply go weird in a tower a few years ago, and it cooked an iPod battery before I figured out what was happening.
I'd say genius bar time, if you're near one.