The number codes in error messages are used in software development. The codes are usually too general or technical in nature to help you diagnose a problem yourself.

However, sometimes number codes can help a technician narrow down the source of a problem. When an error occurs, it's a good idea to make a note of the number code in case you need to refer to it later.

Type 1, 2, and 3 errors

Type 1, 2, and 3 errors indicate that your computer has run out of memory. You need to make more memory available.

For more information

You can find more information about error messages in AppleCare Knowledge Base at kbase.info.apple.com