Some users have complained of CPU lockup caused by overheating. Apple released a software update in early March 2008 to fix the problem with mixed results: the deactivation of one CPU core was corrected; however, the runaway kernel problem remained for some users.[22] The problem is aggravated by system-intensive tasks such as video playback or video chatting.[23]
Some users have complained of CPU lockup caused by overheating. Apple released a software update in early March 2008 to fix the problem with mixed results: the deactivation of one CPU core was corrected; however, the runaway kernel problem remained for some users.[22] The problem is aggravated by system-intensive tasks such as video playback or video chatting.[23]

Some counterfeit and third party power adapters and batteries may not be designed properly and could result in safety issues. To ensure you receive a genuine Apple battery during a battery replacement, we recommend visiting an Apple Store or Apple Authorized Service Provider. If you need a replacement adapter to charge your Apple device, we recommend getting an Apple power adapter.
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