Apple MacBook (13-inch, Late 2006) - Manual (Page 54)

54 Chapter 4 Problem, Meet Solution
Locating Your Product Serial Number
Use one of these methods to find your computer’s serial number:
 Choose Apple () > About This Mac and then click the version number beneath the
words “Mac OS X.” Clicking cycles between the Mac OS X version number, the build
version, and the serial number.
 Open System Profiler (in /Applications/Utilities/) and click Hardware.
 Remove the battery and view the serial number for your MacBook in the battery bay.
For information about removing the battery, see page 33.