On the Back of the Computer Under the Ports
The serial numbers for the following PowerBook computers are located on the back of the unit where the ports are found. There is a small I/O door on the back that must be opened in order to gain access to this area of the computer.
- Most PowerBook 100 Series (140, 145, 145b, 160, 165c, 170, 180, 180c)
- PowerBook 500 Series
On the Bottom of the Computer
The serial numbers for the following PowerBooks are located on the bottom of the unit in the center.
- PowerBook 100, 150
- PowerBook Duo Series (210, 230, 250, 270c, 280, 280c, 2300c) *
- PowerBook 190 Series (190, 190cs)
- PowerBook 1400 Series (1400c/117, 1400cs/117, and 1400c/133)
- PowerBook 2400 Series (2400c/180) (located toward the back edge of the bottom case)
- PowerBook 3400 Series (3400/180, 3400/200, and 3400/240)
- PowerBook 5300 Series (5300/100, 5300cs/100, 5300c/100, 5300ce/117)
- PowerBook G3
The serial numbers for the following PowerBooks are located on the bottom of the unit on one of two labels.
- PowerBook G3 Series (233, 233/512K L2, 250, 266, 292, and 300 MHz)
* Note: the serial numbers for PowerBook 200 series computers (Duos) are not visible while they are attached to a docking device or accessory.
Other Serial Number Locations
- Macintosh Portable: Orient the Macintosh Portable computer so it is standing vertically on its back (where the ports are located). The serial number is on the bottom of the machine, in the upper right corner.
- Mini Dock, Duo Floppy Drive, Battery charger, Duo Floppy Adapter: The serial number is located on the bottom in the center.
- Duo Dock, Duo Dock II, Duo Dock Plus: The serial number is located on the back (where the ports are located) in the center.
- PowerBook G3: please see article 88060: "PowerBook G4: How to Find the Serial Number."