Lenovo G50 User Manual

							G40/G50/Z40/Z50
User GuideUser Guide
Read the safety notices and important tips in the 
included manuals before using your computer. 
						

							First Edition (September 2014)
© Copyright Lenovo 2014. 
Before using the product, be sure to read Lenovo Safety and General 
Information Guide first.
The features described in this guide are common to most models. 
Some features may not be available on your computer or your 
computer may include features that are not described in this user 
guide. Some instructions in this guide may assume that you are using 
Windows
® 8.1. If you are using other Windows operating system, 
some operations may be slightly different. If you are using other 
operating systems, some operations may not apply to you.
LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant to a General 
Services Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set 
forth in Contract No. GS-35F-05925.
Notes
•
•
•
The illustrations in this manual may differ from the actual product. 
Please refer to the actual product. The illustrations used in this manual are for Lenovo Z50-70 unless 
otherwise stated. •
•
For details, refer to Guides & Manuals at http://support.lenovo.com.
Regulatory Notice
• 
						

							Instructions and technical information in this manual are applicable to the following 
Lenovo notebook computers unless otherwise stated.Model name  MT
Lenovo G40-30
Lenovo G40-45
Lenovo G40-70
Lenovo G40-70m
Lenovo G40-80
Lenovo G50-30
Lenovo G50-45
Lenovo G50-70
Lenovo G50-70m
Lenovo G50-80
Lenovo G50-80 Touch
Lenovo Z40-70
Lenovo Z40-75
Lenovo Z50-70
Lenovo Z50-75 20417, 80FY
20374, 80E1
20369, 80DX
20422, 80G3
80KY, 80E4
20418, 80G0
20375, 80E3
20351, 80DY
20423, 80G4
80L0, 80E5
80KR, 80L4
20366, 80E6
20360, 80DW
20354, 80E7
20356, 80EC
Lenovo
User Guide User Guide
G40/G50/Z40/Z50
G40/G50/Z40/Z50 
						

							i Chapter 1. Getting to know your computer ..........................................1
Top view ....................................................................................................................... 1
Left-side view ..............................................................................................................9
Right-side view.......................................................................................................... 12
Front view .................................................................................................................. 14
Bottom view ............................................................................................................... 15
Chapter 2. Starting to use Windows 8.1 ..............................................16
Configuring the operating system for the first time ............................................ 16
Operating system interfaces .................................................................................... 16
The charms ................................................................................................................. 17
Putting the computer to sleep or shutting it down .............................................. 19
Touch screen operation (G50-80 Touch) ................................................................ 20
Connecting to a wireless network .......................................................................... 24
Help and support...................................................................................................... 25
Chapter 3. Lenovo OneKey Recovery System ...................................26
Chapter 4. Troubleshooting .................................................................27
Frequently asked questions ..................................................................................... 27
Troubleshooting........................................................................................................ 29
Appendix A. CRU instructions.............................................................33
Replacing the battery pack ...................................................................................... 33
Replacing the hard disk drive ................................................................................. 34
Replacing memory .................................................................................................... 40
Replacing the wireless LAN card ........................................................................... 43
Replacing the thermal fan (Lenovo G50-30/G50-45/
G50-70/G50-70m/G50-80/G50-80 Touch/Z50-70/Z50-75) ............................... 46
Replacing the keyboard............................................................................................ 48
Removing the optical drive ..................................................................................... 53
Trademarks ............................................................................................55
Contents 
						

							1
Chapter 1. Getting to know your computer
Top view  - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
Lenovo G40-30/G40-45/G40-70/G40-70m/G40-80/Z40-70/Z40-75
122
4
5
6
3 
						

							2
Chapter 1. Getting to know your computer
Lenovo G50-30/G50-45/G50-70/G50-70m/G50-80/G50-80 Touch/
Z50-70/Z50-75
Note: The dashed areas indicate parts that are not visible externally.
Attention:
•Do not open the display panel beyond 130 degrees. When closing the display panel, be 
careful not to leave pens or any other objects in between the display panel and the 
keyboard. Otherwise, the display panel may be damaged.
122
4
5
6
3
 
						

							Chapter 1. Getting to know your computer
3
Integrated 
cameraUse the camera for video communication or taking 
photos.
Built-in 
microphoneCaptures sound which can be used for video conferencing, 
voice narration, or audio recording.
Note: Select models may have only one microphone, please refer to the actual product.
Wireless LAN 
antennasConnect to a wireless LAN adapter to send and receive 
wireless radio signals.
Computer displayProvides brilliant visual output.
Power buttonPress this button to turn on the computer.
TouchpadThe touchpad functions as a conventional mouse.
Touchpad: To  m ove the pointer on the screen, slide your 
fingertip over the pad in the direction in which you want 
the pointer to move.
Touchpad buttons: The functions of the left/right side 
correspond to that of the left/right mo
use button on a 
conventional mouse.
Note: You can enable/disable the touchpad by pressing . 
a
b
c
d
e
f 
						

							4
Chapter 1. Getting to know your computer
Using the keyboard 
Numeric keypad 
(Lenovo G50-30/G50-45/G50-70/G50-70m/G50-80/G50-80 Touch/
Z50-70/Z50-75)
The keyboard has a separate numeric keypad. To enable or disable the 
numeric keypad, press the Num Lock key.
Function key combinations
Through the use of the function keys, you can change operational features 
instantly. To use this function, press and hold Fn ; then press one of the 
function keys  .
Lenovo G40-30/G40-45/G40-70/G40-70m/G40-80/Z40-70/Z40-75
The following describes the features of each function key.
Fn + Home:Activates the pause function.
Fn + End:Activates the break function.
Fn + PgUp: Enables/disables the scroll lock.
Fn + PgDn:Activates the insert function.
a
b
1
2