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(2) Service tag* Provides the serial number for this product, as well as the product number and
warranty information.
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The serial number is an alphanumeric identifier unique to this product.
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The product number provides specific information about the product's
hardware components, which helps a service technician to determine what
components and parts are needed.
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The warranty number describes the duration of the warranty period for this
product.
*Have this information available when you contact technical support.
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Microsoft® Certificate of Authenticity—Contains the Windows® Product Key. You may need the
Product Key to update or troubleshoot the operating system. This certificate is affixed to the bottom
of the computer.
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Modem approval label (select models only)—Provides regulatory information about the modem
and lists the agency approval markings required by some of the countries or regions in which the
modem has been approved for use. You may need this information when traveling internationally.
The modem approval label is affixed inside the battery bay.
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Wireless certification label(s)—Provide information about optional wireless devices and the
approval markings of some of the countries or regions in which the devices have been approved
for use. An optional device may be a wireless local area network (WLAN) device or an optional
Bluetooth® device. If your computer model includes one or more wireless devices, one or more
certification labels are included with your computer. You may need this information when traveling
internationally. Wireless certification labels are affixed to the bottom of the computer. This label is
affixed inside the battery bay.
38 Chapter 8 Customer support