Lenovo B450 Laptop User Guide

							Chapter 2. Learning the basics
17
The following describes the features of each function key.
Fn + Esc: Turn on/off the integrated camera (specific 
models only).
Fn + F1:Enter sleep mode.
Fn + F2:Turn on/off the backlight for the LCD screen.
Fn + F3:Shift to other connected display devices.
Fn + F5: Open the interface for integrated wireless devices 
settings (enable/disable) (specific models only).
Fn + F8:Enable/Disable the touchpad.
Fn + F9:Start/Pause playback of Windows Media Player. 
Fn + F10:Stop playback of Windows Media Player.
Fn + F11:Skip to the previous track.
Fn + F12:Skip to the next track.
Fn + PrtSc:Activate the system request.
Fn + Pause:Activate the break function.
Fn + Insert:Enable/Disable the numeric keypad.
Fn + Delete:Enable/Disable the Scroll Lock.
Fn + ↑/↓:Increase/Decrease display brightness.
Fn + ←/→:Decrease/Increase volume level. 
						

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Chapter 2. Learning the basics
Special keys and buttons - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
OneKey Rescue System button
 When the computer is powered-off, press this button to enter the 
OneKey Rescue System if Lenovo OneKey Rescue System has been 
preinstalled.
 Under Windows operating systems, press this button to start Lenovo 
OneKey Recovery.
Note:For details, see “OneKey Rescue System” on page 28.  
						

							Chapter 2. Learning the basics
19
System status indicators - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
These indicators inform you of the computer status.
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Num lock indicator 
Caps lock indicator 
Power status indicator 
Battery status indicator 
Wireless communication 
indicator 
Hard disk drive indicator 





 
						

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Chapter 2. Learning the basics
Securing your computer - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
This section provides information about how to help protect your 
computer from theft and unauthorized use.
„Attaching a security lock (not supplied)
You can attach a security lock to your computer to help prevent it from 
being removed without your permission. For details on installing the 
security lock, please refer to the instructions shipped with the security lock 
that you have purchased.
Refer to the “Right-side view” on page 4 for the location of the Kensington 
slot.
Notes:
Before purchasing any security product, verify that it is compatible with this 
type of security keyhole.
You are responsible for evaluating, selecting, and implementing the locking 
devices and security features. Lenovo offers no comment judgement or warranty 
regarding the function, quality or performance of locking devices and security 
features. 
						

							Chapter 2. Learning the basics
21 „Using passwords
Using passwords helps prevent your computer from being used by others. 
Once you set a password and enable it, a prompt appears on the screen 
each time you power on the computer. Enter your password at the prompt. 
The computer cannot be used unless you enter the correct password. 
For details about how to set the password, see the help to the right of the 
screen in BIOS setup utility. 
Note:This password can be from one to seven alphanumeric characters in any 
combination.
Note:To  e n t e r  BIOS setup utility, press F2 when the Lenovo logo appears on the 
screen while the computer is starting up. 
						

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Chapter 2. Learning the basics
Connecting external devices  - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
Your computer has a wide range of built-in features and connection 
capabilities.
„Using memory cards (not supplied) 
Your computer supports the following types of memory cards:
 Secure Digital (SD) card
 MultiMediaCard (MMC)
 Memory Stick (MS)
 Memory Stick PRO (MS-PRO)
Notes:
Insert ONLY one card in the slot at a time.
This card reader does not support SDIO devices (e.g., SDIO Bluetooth, etc.). 
						

							Chapter 2. Learning the basics
23 „Inserting a memory card
1Gently pull the dummy card out of the memory card slot.
2Push the card directly into the memory card slot until it reaches the 
end.
„Removing a memory card
1Gently pull the memory card out of the memory card slot.
2Insert the dummy card to the memory card slot.
„Connecting a universal serial bus (USB) device
Your computer comes with 4 USB ports compatible with USB devices.
Note:The dummy card is used for preventing dust and small particles from 
entering the inside of your computer when the memory card slot is not in use. 
Retain the dummy card for future use.
Note:Before removing the memory card, unable it by Windows Safely Remove 
Hardware utility to avoid data corruption.
Note:When using a high power consumption USB device such as USB ODD, use 
the external device’s power adapter. Otherwise, the device may not be 
recognized, or system shut down may result. 
						

							24
Chapter 3. Using the Internet
As a global network, the Internet connects computers worldwide, 
providing services such as e-mailing, information searching, electronic 
commerce, Web browsing and entertainment.
You can connect the computer to the Internet in the following ways:
Wired connection: uses physical wiring to connect.
Wireless network technology: connect without wiring.
Wired connection  - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
Wired connection is a reliable and safe way to connect the computer to the 
Internet. Generally, the following two accessing methods are widely used.
CableCable Internet services use a cable modem connected to 
the residential cable TV line.
DSLDSL is a family of related technologies that bring 
high-speed network access to homes and small 
businesses over ordinary telephone lines. 
						

							Chapter 3. Using the Internet
25 „Hardware connection:
Cable DSL
„Software configuration
Consult your Internet Service Provider (ISP) for details on how to configure 
your computer.
Note:The above diagrams are for reference only. Actual connection method may 
vary.
*
*
*
*
TV cable
Splitter *
Cable modem *
* Not supplied.Telephone line
Splitter *
DSL modem * 
						

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Chapter 3. Using the Internet
Wireless connection - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
Wireless connection provides mobile access to the Internet, allowing you to 
stay online anywhere the wireless signal covers. 
Wi-FiWi-Fi networks cover a small physical area, like a home, 
office, or small group of buildings. An access point is 
necessary for the connection.