Lenovo M91p 4480 User Manual

Also see for 4513: Hardware Maintenance Manual User guide Hardware Maintenance Manual

Contents

Register your computer with LenovoTo register your computer, go to http://www.lenovo.com/register. Then, follow the instructions on the screento complete the registration. This can help authorities return your computer to you if it is lost or stolen.Registering your computer also enables Lenovo to notify you about possible technical information andupgrades.When you register your computer, information is entered into a database, which enables Lenovo to contactyou in case of a recall or other severe problem. In addition, some locations offer extended privileges andservices to registered users.Moving your computer to another country or regionWhen you move your computer to another country or region, you must take local electrical standards intoconsideration. This section provides information on the following:• “Voltage-selection switch” on page 23• “Replacement power cords” on page 23Voltage-selection switchSome computers are equipped with a voltage-selection switch located near the power-cord connectionpoint on the computer and some computers do not have a voltage-selection switch. Before you installyour computer or relocate your computer to another country or region, you must be certain that you havematched your computer to the voltage available at your electrical outlet.CAUTION:You must know the voltage of the electrical connection (outlet) where your computer will beconnected. If you do not know the voltage, contact your local electric company or refer to officialWeb sites or other literature for travelers to the country or region where you are located.If your computer has a voltage-selection switch, you must set the switch to match the voltage available atyour electrical outlet. Setting the voltage-selection switch incorrectly will cause the computer to malfunctionand might cause permanent damage to the computer. Do not connect the computer to an electricaloutlet until you have verified that the voltage-selection switch setting matches the voltage available at theelectrical outlets.If your computer does not have a voltage-selection switch, inspect the voltage-rating label on the bottom ofthe computer and note the following:• If the voltage-rating label shows a range of either “100-127 V” or “200-240 V,” you must ensure that thevoltage provided at the electrical outlet matches the voltage rating on the computer label. If it doesnot match, do not attempt to connect the computer to the electrical outlet, unless an external devicesuch as a voltage-converting transformer is used.• If the voltage-rating label shows a dual range of “100-127 V” and “200-240 V,” this signifies that thecomputer is suitable for worldwide operation and the computer will automatically adjust to the voltage atthe electrical outlet regardless of the country or region where the computer is being connected.Replacement power cordsIf you relocate your computer to a country or region that uses an electrical outlet style different from thetype you are currently using, you will have to purchase either electrical plug adapters or new power cords.You can order power cords directly from Lenovo.Chapter 3. You and your computer 23