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G40/G50/Z40/Z50/
G41/G51
User Guide
User Guide
Read the safety notices and important tips in the
included manuals before using your computer.

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Summary of Contents for Lenovo G51

  • Page 1 G40/G50/Z40/Z50/ G41/G51 User Guide User Guide Read the safety notices and important tips in the included manuals before using your computer.
  • Page 2 Notes • Before using the product, be sure to read Lenovo Safety and General Information Guide first. • 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.
  • Page 3 Lenovo G40/G50/Z40/Z50/G41/G51 G40/G50/Z40/Z50/G41/G51 User Guide User Guide Instructions and technical information in this manual are applicable to the following Lenovo notebook computers unless otherwise stated. Model name Lenovo G40-30 20417, 80FY Lenovo G40-45 20374, 80E1, 80MN Lenovo G40-70 20369, 80DX...
  • Page 5: Table Of Contents

    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 ..............28 Frequently asked questions ..................28 Troubleshooting ......................30 Appendix A.
  • Page 7: Chapter 1. Getting To Know Your Computer

    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Lenovo G40-30/G40-45/G40-70/G40-70m/G40-80/Z40-70/ ...
  • Page 8 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/G51-35 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.
  • Page 9 Chapter 1. Getting to know your computer Integrated Use the camera for video communication or taking camera photos. Built-in Captures sound which can be used for video conferencing, microphone voice narration, or audio recording. Note: Select models may have only one microphone, please refer to the actual product. Wireless LAN Connect to a wireless LAN adapter to send and receive antennas...
  • Page 10 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/G51-35) 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.
  • Page 11 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/G51-35 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.
  • Page 12 Chapter 1. Getting to know your computer Hotkeys You can access certain system settings quickly by pressing the appropriate hotkeys. Lenovo G40-30/G40-45/G40-70/G40-70m/G40-80/Z40-70/Z40-75/G41-35 Lenovo G50-30/G50-45/G50-70/G50-70m/G50-80/G50-80 Touch/ Z50-70/Z50-75/G51-35 Enables/disables Airplane : Mutes/unmutes the sound. mode. Displays all currently active : Decreases the volume level.
  • Page 13 Chapter 1. Getting to know your computer Setting hotkey mode By default, the hotkey functions are accessible by pressing the appropriate hotkey. However, you can disable the hotkey mode in the BIOS setup utility. To disable the hotkey mode: 1 Shut down the computer. 2 Press the Novo button and then select BIOS Setup.
  • Page 14 Chapter 1. Getting to know your computer 4 Open the Exit menu, and select Exit Saving Changes. Note: When hotkey mode is disabled, press the Fn key and the appropriate hotkey to access the corresponding hotkey function.
  • Page 15: Left-Side View

    When the computer is off or in hibernation mode, press this button to start the Lenovo OneKey Recovery System or the BIOS setup utility, or to enter the boot menu. Note: For details, see “Lenovo OneKey Recovery System” on page 26. Ventilation slots Dissipate internal heat.
  • Page 16 Chapter 1. Getting to know your computer  Connecting USB device Your computer comes with three USB ports compatible with USB devices. The first time you plug a USB device into a particular USB port on your computer, Windows automatically installs a driver for that device. After the driver has been installed, you can disconnect and reconnect the device without performing any additional steps.
  • Page 17 Chapter 1. Getting to know your computer Connecting network cables  To insert a network cable, do the following: 1 Hold one connector of the network cable to press the RJ-45 cover down gently 2 Insert the connector into the RJ-45 port Software configuration Consult your Internet Service Provider (ISP) for details on how to configure your computer.
  • Page 18: Right-Side View

    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 judgment or warranty regarding the function, quality or performance of locking devices and security features.
  • Page 19  Using memory cards (not supplied) Your computer supports the following types of memory cards: • Secure Digital (SD) card • Secure Digital High Capacity (SDHC) card (G41-35/G51-35) • Secure Digital eXtended Capacity (SDXC) card (G41-35/G51-35) • MultiMediaCard (MMC) Notes: •...
  • Page 20: Front View

    Chapter 1. Getting to know your computer Front view - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - System status indicators Indicator...
  • Page 21: Bottom View

    Chapter 1. Getting to know your computer Bottom view - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Battery pack The manual battery pack latch is used to keep the battery latch - manual...
  • Page 22: Chapter 2. Starting To Use Windows 8.1

    Chapter 2. Starting to use Windows 8.1 Configuring the operating system for the first time - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - You may need to configure the operating system when it is first used.
  • Page 23: The Charms

    Chapter 2. Starting to use Windows 8.1 The charms - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ®...
  • Page 24 Chapter 2. Starting to use Windows 8.1 Share charm The Share charm lets you send links, photos, and more to your friends and social networks without leaving the app you are in. Start charm The Start charm is a fast way to go to the Start screen. Devices charm The Devices charm allows you to connect or send files to any external devices, including the devices to play, print, and project.
  • Page 25: Putting The Computer To Sleep Or Shutting It Down

    Chapter 2. Starting to use Windows 8.1 Putting the computer to sleep or shutting it down - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - When you have finished working with your computer, you can put it to sleep or shut it down.
  • Page 26: Touch Screen Operation (G50-80 Touch)

    Chapter 2. Starting to use Windows 8.1 Touch screen operation (G50-80 Touch) - - - - - - - - - - - - - - - - - - - - - The display panel can accept inputs like a tablet, using the multi-touch screen, or like a traditional notebook computer, using the keyboard and touchpad.
  • Page 27 Chapter 2. Starting to use Windows 8.1 (Continued) Frequently used gestures Tasks performed Zoom Move two fingers together or apart while touching the screen. Zooms in and out on visual apps, such as pictures and maps. Can also jump to the beginning or end of a list.
  • Page 28 Chapter 2. Starting to use Windows 8.1 (Continued) Frequently used gestures Tasks performed Swipe Start from any edge of the screen, then swipe inwards toward the center. Swiping down from the top edge or up from the bottom edge displays a task bar on the bottom of the screen with app commands, including save, edit, and delete.
  • Page 29 Chapter 2. Starting to use Windows 8.1 (Continued) Frequently used gestures Tasks performed Swiping in from the left edge can: • Bring in and open an app currently running in the background. If there is more than one currently open app, you can: •...
  • Page 30: Connecting To A Wireless Network

    Chapter 2. Starting to use Windows 8.1 Connecting to a wireless network - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Enabling wireless connection To enable wireless functions, do one of the following: •...
  • Page 31: Help And Support

    Chapter 2. Starting to use Windows 8.1 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Help and support If you have a problem with the operating system, see the Windows Help and Support file.
  • Page 32: Chapter 3. Lenovo Onekey Recovery System

    You can choose a back-up location on the local hard disk drive or an external storage device. • Remove the removable hard disk drive before starting the Lenovo OneKey Recovery System. Otherwise, data from the removable hard disk drive might be lost.
  • Page 33 Chapter 3. Lenovo OneKey Recovery System If Windows cannot be started, then follow the steps below to start the Lenovo OneKey Recovery System: 1 Shut down the computer. 2 Press the Novo button. From Novo Button Menu, select System Recovery and press Enter.
  • Page 34: Chapter 4. Troubleshooting

    Lenovo consumer support website. Lenovo OneKey Recovery System  Where are the recovery discs? Your computer did not come with any recovery discs. Use the Lenovo OneKey Recovery System if you need to restore the system to its original factory status.
  • Page 35 Windows, Linux or Dos, etc cannot be installed if you don't change the boot mode. Getting help  How can I contact the customer support center? See "Chapter 3. Getting help and service" in the Lenovo Safety and General Information Guide.
  • Page 36: Troubleshooting

    If you forget your user password, ask the system administrator to clear your user password. • If you forget your hard disk drive password, a Lenovo authorized servicer cannot reset your password or recover data from the hard disk. You must take your computer to a Lenovo authorized servicer or a marketing representative to have the hard disk drive replaced.
  • Page 37 (POST). - The operating temperature is within the acceptable range. See “Chapter 2. Use and care Information” in the Lenovo Safety and General Information Guide. Note: If the battery pack is charged and the temperature is within range, have the computer serviced.
  • Page 38 Chapter 4. Troubleshooting Sound problems No sound can be heard from • Make sure that: the speaker even when the - The Mute function is off. volume is turned up. - The combo audio jack is not being used. - Speakers are selected as the playback device. Battery pack problems Your computer shuts down •...
  • Page 39 Chapter 4. Troubleshooting Other problems Your computer does not • To turn off your computer, press and hold the Power button respond. for four seconds or more. If the computer still does not respond, remove the AC power adapter and the battery pack. •...
  • Page 40: Appendix A. Cru Instructions

    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Note: Use only the battery pack provided by Lenovo. Any other battery pack could ignite or explode.
  • Page 41: Replacing The Hard Disk Drive

    You can increase the storage capacity of your computer by replacing the hard disk drive with one of greater capacity. You can purchase a new hard disk drive from your reseller or Lenovo marketing representative. Notes: • Replace the hard disk drive only if you upgrade it or have it repaired. The connectors and bay of the hard disk drive were not designed for frequent changes, or drive swapping.
  • Page 42 2 Close the computer display and turn the computer over. 3 Remove the battery pack. 4 Remove the Optical drive/Hard disk drive/Memory/Central processing unit/Mini PCI Express Card slot compartment cover. a.Remove the screws that secure the compartment cover b.Remove the compartment cover Lenovo G40-30/G40-45/G40-70/G40-70m/G40-80/Z40-70/Z40-75/G41-35...
  • Page 43 Appendix A. CRU instructions Lenovo G50-30/G50-45/G50-70/G50-70m/G50-80/G50-80 Touch/ Z50-70/Z50-75/G51-35 5 Remove the frame fixing screws Lenovo G40-30/G40-45/G40-70/G40-70m/G40-80/Z40-70/Z40-75/G41-35...
  • Page 44 Appendix A. CRU instructions Lenovo G50-30/G50-45/G50-70/G50-70m/G50-80/G50-80 Touch/ Z50-70/Z50-75/G51-35 6 Pull the hard disk drive tab in the direction shown by arrow Lenovo G40-30/G40-45/G40-70/G40-70m/G40-80/Z40-70/Z40-75/G41-35...
  • Page 45 Appendix A. CRU instructions Lenovo G50-30/G50-45/G50-70/G50-70m/G50-80/G50-80 Touch/ Z50-70/Z50-75/G51-35 7 Take out the hard disk drive secured in a metal frame Lenovo G40-30/G40-45/G40-70/G40-70m/G40-80/Z40-70/Z40-75/G41-35...
  • Page 46 Appendix A. CRU instructions Lenovo G50-30/G50-45/G50-70/G50-70m/G50-80/G50-80 Touch/ Z50-70/Z50-75/G51-35 8 Remove the screws and detach the metal frame from the hard disk drive. 9 Attach the metal frame to a new hard disk drive and tighten the screws. 0 Put the hard disk drive gently into the hard disk drive bay with the tab facing upwards and the connectors facing each other;...
  • Page 47: Replacing Memory

    Appendix A. CRU instructions Replacing memory - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - You can increase the amount of memory in your computer by installing double-data-rate three synchronous dynamic random access memory (DDR3 SDRAM)-available as an option-in the memory slot of your computer.
  • Page 48 Appendix A. CRU instructions 6 Remove the DDR3 SDRAM by pressing out on the latches on both edges of the socket at the same time. Be sure to save the old DDR3 SDRAM for future use. 7 Align the notch of the DDR3 SDRAM with the protrusion of the socket and gently insert the DDR3 SDRAM into the socket at a 30-45°...
  • Page 49 Appendix A. CRU instructions C Connect the AC power adapter and the cables to the computer. Notes: • When replacing the memory is completed, you need to restart the computer after the first reboot. • If only one DDR3 SDRAM module is used on the computer you are servicing, it must be installed in SLOT-1 ( ), but not in SLOT-2 ( To make sure that the DDR3 SDRAM is installed correctly, do as follows:...
  • Page 50: Replacing The Thermal Fan (Lenovo G50-30/G50-45/G50-70/G50-70M/G50-80/G50-80 Touch/Z50-70/Z50-75/G51-35)

    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Note: For the Lenovo G40-30/G50-30, select models (computers with UMA architecture) do not have a thermal fan.
  • Page 51 Appendix A. CRU instructions 6 Remove the screws that secure the thermal fan 7 Remove the thermal fan 8 Install the new thermal fan and reconnect the thermal fan connector. Make sure that the connector is attached firmly. 9 Reinstall and tighten the screws. 0 Reinstall the compartment cover and tighten the screws.
  • Page 52: Replacing The Keyboard

    2 Close the computer display and turn the computer over. 3 Remove the battery pack. 4 Remove the Optical drive/Hard disk drive/Memory/Central processing unit/Mini PCI Express Card slot compartment cover. 5 Remove the screws that secure the keyboard Lenovo G40-30/G40-45/G40-70/G40-70m/G40-80/Z40-70/Z40-75/G41-35...
  • Page 53 Appendix A. CRU instructions Lenovo G50-30/G50-45/G50-70/G50-70m/G50-80/G50-80 Touch/ Z50-70/Z50-75/G51-35 6 Push the area of the keyboard highlighted and shown by arrow loosen. Lenovo G40-30/G40-45/G40-70/G40-70m/G40-80/Z40-70/Z40-75/G41-35...
  • Page 54 Appendix A. CRU instructions Lenovo G50-30/G50-45/G50-70/G50-70m/G50-80/G50-80 Touch/ Z50-70/Z50-75/G51-35 7 Loosen the keyboard with fingers , and then lift the keyboard slightly Lenovo G40-30/G40-45/G40-70/G40-70m/G40-80/Z40-70/Z40-75/G41-35...
  • Page 55 Appendix A. CRU instructions Lenovo G50-30/G50-45/G50-70/G50-70m/G50-80/G50-80 Touch/ Z50-70/Z50-75/G51-35 8 Disconnect the keyboard connector in the direction shown by arrows . Then remove the keyboard. Lenovo G40-30/G40-45/G40-70/G40-70m/G40-80/Z40-70/Z40-75/G41-35...
  • Page 56 Appendix A. CRU instructions Lenovo G50-30/G50-45/G50-70/G50-70m/G50-80/G50-80 Touch/ Z50-70/Z50-75/G51-35 9 Reconnect the keyboard connector and install the new keyboard. Push the keyboard in gently until it clicks into place. Note: Make sure that the keyboard connector is attached firmly. 0 Close the computer display and turn the computer over.
  • Page 57: Removing The Optical Drive

    Appendix A. CRU instructions Removing the optical drive - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - To remove the optical drive, do the following: 1 Remove the Optical drive/Hard disk drive/Memory/Central processing unit/Mini PCI Express Card slot compartment cover.
  • Page 58 Appendix A. CRU instructions 4 Remove the screw , then remove the optical drive bracket in the direction shown by arrow 5 Carefully remove the optical drive bezel in the direction shown by arrow...
  • Page 59 Appendix A. CRU instructions The following table provides a list of CRUs (Customer Replaceable Units) for your computer and informs you of where to find replacement instructions. Safety, Warranty, User Guide and Setup Guide AC power adapter Power cord for AC power adapter Battery pack Bottom access doors Hard disk drive...
  • Page 60: Trademarks

    Trademarks The following terms are trademarks or registered trademarks of Lenovo in the United States, other countries, or both. Lenovo OneKey Microsoft and Windows are trademarks of Microsoft Corporation in the United States, other countries, or both. Other company, products, or service names may be trademarks or service...
  • Page 61 en-US Rev. RT02...

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