After extended periods of use, the surfaces of the PowerBook G4 (12-inch) computers can become warm. As with all Apple products, the PowerBook G4 (12-inch) computer was designed to comply with safety agency specifications. The internal fan in the PowerBook G4 (12-inch) computers was designed to turn on within a temperature range that is selected to ensure both proper operation of the computer, and that no surface temperature should present a safety issue.
Follow these suggestions to reduce the computer's operating temperature:
- When using your PowerBook G4 (12-inch) computer, place it on a hard surface such as a desktop or tray. A hard surface dissipates heat better than a soft surface. Do not place it on a soft surface such as a towel or pillow. This may block air flow under the computer and prevent enough heat from dissipating.
- To reduce the computer's operating temperature, change the Processor Performance setting:
1. From the Apple menu, choose System Preferences.
2. From the View menu, choose Energy Saver.
3. Click Show Details, if necessary.
4. Click the Options tab.
5. Choose Reduced from the Processor Performance pop-up menu.
- To further reduce the computer's operating temperature, change settings to make the hard disk sleep when it is not being used:
1. From the Apple menu, choose System Preferences.
2. From the View menu, choose Energy Saver.
3. Click Show Details, if necessary.
4. Click the Sleep tab
5. Select the "Put the hard disk to sleep when possible" option.
Note: The PowerBook G4 (12-inch) and PowerBook G4 (12-inch DVI) computer complies with the safety standard for Safety of Information Technology Equipment, IEC 60950. This safety standard has been adopted by many countries and is referred to as UL 60950 in the United States, CSA 60950-00 in Canada, EN60950 in Europe, and ASNZ3260 in Australia and New Zealand.