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If you need to remove the wireless LAN card
a PCI Express Mini Card for wireless LAN connection" on page 74.
Note: Only Lenovo authorized wireless LAN is allowed to be used in your computer. If you install an
unauthorized PCI Express Mini Card that is not approved for use in your computer, the computer will not
start, but will only display an error message and emit audible beeps.
Certificate of Authenticity label
The Certificate of Authenticity label for the preinstalled operating system is attached. Printed on this label are
the product ID and the product key information for your computer. Record this information and keep it in a
safe place. You might need these numbers to start your computer or reinstall the operating system.
The Certificate of Authenticity label of your computer is shown as below:
Note: The Certificate of Authenticity label only applies to computers preinstalled with the Windows 7
operating system.
Features
This topic lists the features of your computer.
Processor
• To view the processor information of your computer, do the following:
– For Windows 7: Click Start, right-click Computer. Then click Properties.
– For Windows 8: Move the cursor to the bottom right corner of the screen to bring up the charms.
Then click Settings ➙ PC info.
Memory
• Double data rate 3 synchronous dynamic random access memory modules (DDR3 SDRAM)
Storage device
• 2.5-inch hard disk drive with a height of 7 mm (0.28 inch) or 9.5 mm (0.37 inch)
Display
The color display uses the TFT technology.
• Size:
– For E445 models: 14.0 inches (355.6 mm)
1
for repair or replacement, follow the procedure in "Replacing
.
Chapter 1
Product overview
13
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