1. Lenovo Laptops G50 70 Manual
2. Lenovo G50 80 User Manual
3. Lenovo Z50-70 Laptop Manual

Laptops and netbooks:: lenovo g series laptops:: g50 70 notebook lenovo - GB. SHOP SUPPORT. PC Data Center Mobile: Lenovo Mobile: Motorola Smart. I have encountered a problem that my laptop won't power up. If i press the power button the front LED blinks two times and goes off. On plugging the ac adapter there is no response. Even when i remove the battery and plug the ac adapter there in no response. I am using a Lenovo G50-70 for almost 3. Page 1 Lenovo 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. We would like to show you a description here but the site won’t allow us. Lenovo User Guide Read the safety notices and important tips in the included manuals before using your computer. Notes. Before using the product, be sure to read Lenovo Safety and General Information Guide first. Ask the question you have about the Lenovo IdeaPad G50-70 here simply to other product owners. Provide a clear and comprehensive description of the problem and your question. The better your problem and question is described, the easier it is for other Lenovo IdeaPad G50-70 owners to provide you with a good answer.

Lenovo Laptops G50 70 Manual

1

Lenovo limited warranty

L505-0010-02 08/2011

This Lenovo Limited Warranty consists of the following parts:
Part 1 - General Terms
Part 2 - Country-specific Terms
Part 3 - Warranty Service Information
The terms of Part 2 replace or modify terms of Part 1 as specified for a
particular country.

Part 1 - General Terms

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This Lenovo Limited Warranty applies only to Lenovo hardware products
you purchased for your own use and not for resale.
This Lenovo Limited Warranty is available in other languages at
www.lenovo.com/warranty.



What this Warranty Covers

Lenovo warrants that each Lenovo hardware product that you purchase is free
from defects in materials and workmanship under normal use during the
warranty period. The warranty period for the product starts on the original
date of purchase as shown on your sales receipt or invoice or as may be
otherwise specified by Lenovo. The warranty period and type of warranty
service that apply to your product are as specified in 'Part 3 - Warranty Service
Information

' below. This warranty only applies to products in the country or

region of purchase.

THIS WARRANTY IS YOUR EXCLUSIVE WARRANTY AND REPLACES ALL
OTHER WARRANTIES OR CONDITIONS, EXPRESS OR IMPLIED,
INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTIES OR
CONDITIONS OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE. AS SOME STATES OR JURISDICTIONS DO NOT ALLOW THE
EXCLUSION OF EXPRESS OR IMPLIED WARRANTIES, THE ABOVE
EXCLUSION MAY NOT APPLY TO YOU. IN THAT EVENT, SUCH
WARRANTIES APPLY ONLY TO THE EXTENT AND FOR SUCH DURATION
AS REQUIRED BY LAW AND ARE LIMITED IN DURATION TO THE
WARRANTY PERIOD. AS SOME STATES OR JURISDICTIONS DO NOT
ALLOW LIMITATIONS ON THE DURATION OF AN IMPLIED WARRANTY,
THE ABOVE LIMITATION ON DURATION MAY NOT APPLY TO YOU.

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Lenovo G50 80 User Manual

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PDF OCR Transcript: Lenovo User Guide User Guide Read the safety notices and important tips in the included manuals before using your computer. 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. If you are using other operating systems, some operations may not apply to you. • 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. •The illustrations used in this manual are for Lenovo Z50-70 unless otherwise stated. • The illustrations in this manual may differ from the actual product. Please refer to the actual product. Regulatory Notice • For details, refer to Guides & Manuals at http://support.lenovo.com. First Edition (February 2014) © Copyright Lenovo 2014. 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. Lenovo User Guide User Guide 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 G50-30 Lenovo G50-45 Lenovo G50-70 Lenovo G50-70m Lenovo Z40-70 Lenovo Z40-75 Lenovo Z50-70 Lenovo Z50-75 20417, 80FY 20374, 80E1 20369, 80DX 20422, 80G3 20418, 80G0 20375, 80E3 20351, 80DY 20423, 80G4 20366, 80E6 20360, 80DW 20354, 80E7 20356, 80EC Contents 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 Connecting to a wireless network .......................................................................... 20 Help and support......................................................................................................21 Chapter 3. Lenovo OneKey Recovery System ...................................22 Chapter 4. Troubleshooting .................................................................23 Frequently asked questions.....................................................................................23 Troubleshooting........................................................................................................25 Appendix A. CRU instructions.............................................................29 Replacing the battery pack ......................................................................................29 Replacing the hard disk drive.................................................................................30 Replacing memory....................................................................................................36 Replacing the wireless LAN card ........................................................................... 39 Removing the optical drive ..................................................................................... 42 Trademarks............................................................................................44 i Chapter 1. Getting to know your computer Top view - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ∎ Lenovo G40-30/G40-45/G40-70/G40-70m/Z40-70/Z40-75 12 2 456 3 1 Chapter 1. Getting to know your computer ∎ Lenovo G50-30/G50-45/G50-70/G50-70m/Z50-70/Z50-75 12 2 456 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. 3 ® 2 abcdef Chapter 1. Getting to know your computer Integrated camera 3 Use the camera for video communication or taking photos. Built-in microphone Captures 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 antennas Connect to a wireless LAN adapter to send and receive wireless radio signals. Computer display Provides brilliant visual output. Power button Press this button to turn on the computer. Touchpad The touchpad functions as a conventional mouse. Touchpad: To move 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 mouse button on a conventional mouse. Note: You can enable/disable the touchpad by pressing . Chapter 1. Getting to know your computer ∎ Using the keyboard Numeric keypad (Lenovo G50-30/G50-45/G50-70/G50-70m/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 a ; then press one of the function keys b . Lenovo G40-30/G40-45/G40-70/G40-70m/Z40-70/Z40-75 1 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. 2 4 Chapter 1. Getting to know your computer Lenovo G50-30/G50-45/G50-70/G50-70m/Z50-70/Z50-75 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 system request. 5 2 1 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/Z40-70/Z40-75 Lenovo G50-30/G50-45/G50-70/G50-70m/Z50-70/Z50-75 : Mutes/unmutes the sound. : Enables/disables mode. Airplane : Decreases the volume level. : Displays apps. all currently active : Increases the volume level. : Turns on/off the backlight of the LCD screen. : Closes the currently active window. : Toggles the display between the computer and an external device. : Refreshes the desktop or the currently active window. : Decreases the display brightness. : Enables/disables touchpad. the : Increases the display brightness. 6 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. 3 In the BIOS setup utility, open the Configuration menu, and change the setting of HotKey Mode from Enabled to Disabled. Chapter 1. Getting to know your computer 7 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. 8 Chapter 1. Getting to know your computer Left-side view - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1 2 3 4 5 6 7 aAC adapter power jack bcdefg 9 Connect the AC power adapter here. Novo button 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 22. Ventilation slots Dissipate internal heat. Note: Make sure that the ventilation slots are not blocked or else the computer may overheat. VGA port Connects to external display devices. RJ-45 port Connects the computer to an Ethernet network. HDMI port Connects to devices with HDMI input such as a TV or an Ethernet display. USB port Connects to USB devices. Notes: • The blue port is a USB 3.0 port. • For details, see “Connecting USB device” on page 10. 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. Note: Typically, Windows detects a new device after it has been connected, and then installs the driver automatically. However, some devices may require you to install the driver before connecting. Check the documentation provided by the device’s manufacturer before connecting the device. Before disconnecting a USB storage device, make sure your computer has finished transferring data to that device. Click the Safely Remove Hardware and Eject Media icon in the Windows notification area to remove the device before disconnecting. Note: If your USB device uses a power cord, connect the device to a power source before connecting it. Otherwise, the device may not be recognized. 10 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 a . 2 Insert the connector into the RJ-45 port b . 1 2 Software configuration Consult your Internet Service Provider (ISP) for details on how to configure your computer. 11 Chapter 1. Getting to know your computer Right-side view - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Combo jack audio 1 2 3 4 5 abcde Connects to headset. Notes: • The combo audio jack does not support conventional microphones by default. • The recording function may not be supported if third-party headphones or headsets are connected, due to different industry standards. Memory card slot Insert memory cards (not supplied) here. Note: For details, see “Using memory cards (not supplied)” on page 13. USB port Connects to USB devices. Notes: • The blue port is a USB 3.0 port. • For details, see “Connecting USB device” on page 10. Optical select models) drive (on Reads/burns optical discs. Kensington slot lock Attach a security lock (not supplied) here to help protect your computer from theft and unauthorized use. 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. 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 judgment or warranty regarding the function, quality or performance of locking devices and security features. 12 Chapter 1. Getting to know your computer ∎ Using memory cards (not supplied) Your computer supports the following types of memory cards: • Secure Digital (SD) card • MultiMediaCard (MMC) Notes: • Insert only one card in the slot at a time. • This card reader does not support SDIO devices (e.g., SDIO Bluetooth and so on.). Inserting a memory card Slide the memory card in until it clicks into place. Removing a memory card 1 Push the memory card in until you hear a click. 2 Gently pull the memory card out of the memory card slot. Note: Before removing the memory card, disable it by using the Windows safely remove hardware and eject media utility to avoid data corruption. 13 Chapter 1. Getting to know your computer Front view - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - System status indicators Symbol Indicator Indicator status 1 a Charge status Meaning Power On (solid white) --- The computer is powered on. Blinking --- The computer is in sleep mode. Off --- The computer is powered off. Battery On (solid Charging The battery has more than 80% charge. white) Discharging The charge. battery has more than 20% On (solid amber) Discharging The 20% battery charge. has between 5% and Blinking slowly (white) The battery has between 20% and 80% charge. When the battery reaches 80% charge, the light will stop blinking. However, charging will continue until the battery is fully charged. Blinking slowly (amber) Charging The battery has less than 20% charge. When the battery charge reaches 20%, the blinking color will change to white. Blinking quickly (amber) Charging Charging/ Discharging The battery has less than 5% charge. 14 Chapter 1. Getting to know your computer Bottom view - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Battery pack latch - manual 15 1 2 3 4 4 abcd The manual battery pack latch is used to keep the battery pack secured in place. Battery pack Battery pack latch - spring- loaded The spring-loaded battery pack latch keeps the battery pack secured in place. Speakers The stereo speakers provide rich and powerful sound. Note: For sound effects and speaker locations specific to your model, refer to the actual product. 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. The configuration process may include the procedures below: • Accepting the end user license agreement • Configuring the Internet connection • Registering the operating system • Creating a user account Operating system interfaces - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Windows 8.1 comes with two main user interfaces: the Start screen and the Windows desktop. To switch from the Start screen to the Windows desktop, do one of the following: • Select the Windows desktop tile on the Start screen. • Press the Windows key + D. To switch from the desktop to the Start screen, do one of the following: • Select Start from the charms bar. • Press the Windows key . • Move the cursor to the lower-left corner, and then select the Start button. Start screen Desktop 16 The charms - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Charms are navigation buttons that let you control your Windows® 8.1 experience. Charms include: Search, Share, Start, Devices, and Settings. The Charms Bar is the menu that contains the charms. The five charms provide new and faster ways to perform many basic tasks, and are always available regardless of whichever app you are currently in. To display the charms, do one of the following: • Move the cursor to the upper-right or lower-right corner until the charms bar is displayed. • Press Windows key + C. Search charm The Search charm is a powerful new way to find what you are looking for, including settings, files, Web images, Web videos, etc. Chapter 2. Starting to use Windows 8.1 17 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. Settings charm The Settings charm lets you perform basic tasks, such as setting the volume or shutting down the computer. Also, you can get to the Control Panel through the Settings charm when on the Desktop screen. 18 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. ∎ Putting your computer to sleep If you will be away from your computer for only a short time, put the computer to sleep. When the computer is in sleep mode, you can quickly wake it to resume use, bypassing the startup process. To put the computer to sleep, do one of the following: • Close the display lid. • Press the Power button. • Open the charms, and then select Settings → Power → Sleep. Note: Wait until the power indicator light starts blinking (indicating that the computer is in sleep mode) before you move your computer. Moving your computer while the hard disk is spinning can damage the hard disk, causing loss of data. To wake the computer, do one of the following: • Press any key on the keyboard. Note: If the computer does not awaken after pressing a key on the keyboard, this means that the computer has entered an enhanced power-saving mode. • Press the Power button. ∎ Shutting down the computer If you are not going to use your computer for a long time, shut it down. To shut down the computer, do one of the following: • Open the charms, and then select Settings → Power → Shut down. • Right-click the Start button in the lower-left corner and select Shut down or sign out → Shut down. 19 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: • Press to disable airplane mode. • Open the charms and select Settings → to open the network configuration page. Then toggle the airplane mode switch to off. Connecting to a wireless network After wireless has been enabled, the computer will automatically scan for available wireless networks and display them in the wireless network list. To connect to a wireless network, click the network name in the list, and then click Connect. Note: Some networks require a network security key or passphrase for connection. To connect to one of those networks, ask the network administrator or the Internet service provider (ISP) for the security key or passphrase. 20 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. To open the Windows Help and Support file, do one of the following: • Select Settings charm, then select Help. • Press F1 or Fn + F1 (depending on your keyboard layout). You can read the Windows Help and Support file on your computer. You can also get online help and support by clicking on one of the two links listed under More to explore. Note: Windows 8.1 also provides an app, Help + Tips. You can find it on the Start screen, to learn more information on new features of Windows 8.1. 21 Chapter 3. Lenovo OneKey Recovery System The Lenovo OneKey Recovery System is software designed to back up and restore your computer. You can use it to restore the system partition to its original for easy status restoration in case as of required. a system failure. You can also create user backups Notes: • If your computer is preinstalled with a GNU/Linux operating system, OneKey Recovery System is not available. • To utilize the features of the OneKey Recovery System, your hard disk already includes a hidden partition by default to store the system image file and the OneKey Recovery System program files. This default partition is hidden for security reasons, which explains why the available disk space is less than the stated capacity. ∎ Backing up the system partition You can back up the system partition to an image file. To back up the system partition: 1 Press the Novo button to start the Lenovo OneKey Recovery System. 2 Click System Backup. 3 Select a back-up location and click Next to start the backup. Notes: • 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. • The back-up process may take a while. • The back-up process is only available when Windows can be started normally. ∎ Restoring You previously can choose created to restore back-up the point. system To partition restore the to system its original partition: status or to a 1 Press the Novo button to start the Lenovo OneKey Recovery System. 2 Click System Recovery. The computer will restart to the recovery environment. 3 Follow the on-screen instructions to restore the system partition to its original status or to a previously created back-up point. Notes: • The recovery process is irreversible. Make sure to back up any data you wish to save on the system partition before starting the recovery process. • The recovery process may take a while. So be sure to connect the AC power adapter to your computer during the recovery process. • The above instructions should be followed when Windows can be started normally. 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 the Novo button menu, select the Lenovo OneKey Recovery System and press Enter. 22 Chapter 4. Troubleshooting Frequently asked questions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - This section lists frequently asked questions by category. ∎ Finding information What safety precautions should I follow when using my computer? The Lenovo Safety and General Information Guide which came with your computer contains safety precautions for using your computer. Read and follow all the precautions when using your computer. Where can I find the hardware specifications for my computer? You can find the hardware specification for your computer on the printed flyers which came with your computer. Where can I find warranty information? For the warranty applicable to your computer, including the warranty period and type of warranty service, see the Safety, Warranty, and Setup Guide (SWSG) that came with your computer. ∎ Drivers and preinstalled software Where are the installation discs for Lenovo preinstalled software (desktop software)? Your computer did not come with installation discs for Lenovo preinstalled software. If you need to reinstall any preinstalled software, you can find the installation program on the D partition of your hard disk. If you cannot find the installation program there, you can also download it from the Lenovo consumer support website. Where can I find drivers for the various hardware devices of my computer? If your computer is preinstalled with a Windows operating system, Lenovo provides drivers for all the hardware devices that you need on the D partition of your hard disk. You can also download the latest device drivers from the 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. 23 Chapter 4. Troubleshooting What can I do if the back-up process fails? If you can start the backup but it fails during the back-up process, try the following steps: 1 Close all open programs, and then restart the back-up process. 2 Check to see if the destination media is damaged. Select another path and then try again. When do I need to restore the system to its factory status? Use this feature when the operating system fails to start up. If there is critical data on the system partition, back it up before starting recovery. ∎ BIOS setup utility What is the BIOS setup utility? The BIOS setup utility is a ROM-based software. It displays basic computer information and provides options for setting boot devices, security, hardware mode, and other preferences. How can I start the BIOS setup utility? To start the BIOS setup utility: 1 Shut down the computer. 2 Press the Novo button and then select BIOS Setup. How can I change the boot mode? There are two boot modes: UEFI and Legacy Support. To change the boot mode, start the BIOS setup utility and set boot mode to UEFI or Legacy Support on the boot menu. When do I need to change the boot mode? The default boot mode for your computer is UEFI mode. If you need to install a legacy operating system, such as Windows, Linux or Dos, etc (that is, any operating system before Windows 8) on your computer, you must change the boot mode to Legacy Support. The legacy operating system, such as 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. 24 Chapter 4. Troubleshooting Troubleshooting - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Display problems When I turn on the computer, nothing appears on the screen. 25 • If the screen is blank, make sure that: - The battery pack is installed correctly. - The AC power adapter is connected to the computer, and the power cord is plugged into a working electrical outlet. - The computer power is on. (Press the Power button again for confirmation.) - The memory is installed correctly. • If these items are properly set, and the screen remains blank, have the computer serviced. When I turn on the computer, only a white cursor appears on a blank screen. • Restore backed-up files to your Windows environment or the entire contents of your hard disk to its original factory contents using the Lenovo OneKey Recovery System. If you still see only the cursor on the screen, have the computer serviced. The screen goes blank while the computer is on. • Your screen saver or power management may be enabled. Do one of the following to exit from the screen saver or to resume from sleep mode: - Touch the touchpad. - Press any key on the keyboard. - Press the Power button. - Press F9 ( ) to confirm whether the backlight of the LCD screen has been turned off. BIOS password problems I forgot my password. • 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. Proof of purchase is required, and a fee will be charged for parts and service. • If you forget your administrator password, a Lenovo authorized servicer cannot reset your password. You must take your computer to a Lenovo authorized servicer or a marketing representative to have the system board replaced. Proof of purchase is required, and a fee will be charged for parts and service. Chapter 4. Troubleshooting Sleep problems The critical low-battery error message appears, and the computer immediately turns off. • The battery power is getting low. Connect the AC power adapter to the computer, or replace the battery pack with a fully charged one. The computer enters sleep mode immediately after Power- on self-test (POST). • Make sure that: - The battery pack is charged. - 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. The computer does not return from sleep mode, and the computer does not work. • If your computer is in sleep mode, connect the AC power adapter to the computer, then press any key or the Power button. • If the system still does not return from sleep mode, stops responding, or cannot be turned off, reset the computer. Unsaved data may be lost. To reset the computer, press and hold the Power button for four seconds or more. If the computer is still not reset, remove the AC power adapter and the battery pack. Display panel problems The screen is blank. • Do the following: - If you are using the AC power adapter or the battery pack, and the battery status indicator is on, press F12 ( ) to make the screen brighter. - If the power indicator is blinking, press the Power button to resume from sleep mode. - If the problem persists, follow the solution in the next problem “The screen is unreadable or distorted.” - Press F9 ( ) to confirm whether the backlight of the LCD screen has been turned off. The screen is unreadable or distorted. • Make sure that: - The display device driver is installed correctly. - The screen resolution and color quality are correctly set. - The monitor type is correct. Incorrect characters appear on the screen. • Are the operating system or programs installed correctly? If they are installed and configured correctly, have the computer serviced. 26 Chapter 4. Troubleshooting Sound problems No sound can be heard from the speaker even when the volume is turned up. 27 • Make sure that: - The Mute function is off. - The combo audio jack is not being used. - Speakers are selected as the playback device. Battery pack problems Your computer shuts down before the battery status indicator shows empty. -or- Your computer operates after the battery status indicator shows empty. • Discharge and recharge the battery pack. The computer does not operate with a fully charged battery pack. • The surge protector in the battery pack might be active. Turn off the computer for one minute to reset the protector; then turn on the computer again. A hard disk drive problem The hard disk drive does not work. • Make sure that the hard disk drive is included in the Boot menu in the BIOS setup utility correctly. OneKey Recovery System problems Backup cannot be made. • Make sure that you are currently using a Windows operating system. • There may not be enough space to store the backed-up data. You will need to free more hard disk space on your backup's partition. Failure to restore system partition to factory default. • The system partition (e.g. the partition size or the drive capacity of C) has been modified. Chapter 4. Troubleshooting Other problems Your computer does not respond. • To turn off your computer, press and hold the Power button for four seconds or more. If the computer still does not respond, remove the AC power adapter and the battery pack. • Your computer might lock when it enters sleep mode during a communication operation. Disable the sleep timer when you are working on the network. The computer does not start from a device you want. • See the Boot menu of the BIOS setup utility. Make sure that the BIOS setup utility is set so that the computer starts from the device you want. • Also make sure that the device from which the computer starts is enabled. Make sure that the device is included in the Boot menu in the BIOS setup utility correctly. • While turned off, press the Novo button to select the device you want the computer to start from. The connected external device does not work. • Do not connect or disconnect any external device cables other than USB while the computer power is on. Otherwise, you might damage your computer. • When using high power consumption external devices such as an external USB optical disk drive, use an external device power adapter. Otherwise, the device may not be recognized, or the system may shut down as a result. 28 Appendix A. CRU instructions Notes: • The illustrations used in this appendix are for the Lenovo Z50-70, unless otherwise stated. • The following steps about upgrading and replacing devices are the same for the Lenovo G40-30/ G40-45/G40-70/G40-70m/G50-30/G50-45/G50-70/G50-70m/Z40-70/Z40-75/Z50-70/Z50-75. • Make sure the battery pack has been removed before replacing any devices. Replacing the battery pack - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Note: Use only the battery pack provided by Lenovo. Any other battery pack could ignite or explode. To replace the battery pack, do the following: 1 Turn off the computer. Disconnect the AC power adapter and all cables from the computer. 2 Close the computer display and turn the computer over. 3 Unlock the manual battery pack latch a . Slide the spring-loaded latch to the unlocked position to eject the battery pack b. Lift up the inner edge of the battery pack, pivoting it on the outer edge c . Gently raise the battery pack in the indicated direction d to remove it. 4 31 4 2 4 Install a fully charged battery pack. 5 Slide the manual battery pack latch to the locked position. 6 Turn the computer over again. 7 Connect the AC power adapter and the cables to the computer. 29 Appendix A. CRU instructions 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. • The preinstalled softwares are not included on an optional hard disk drive. Handling a hard disk drive • Do not drop the drive or subject it to physical shocks. Put the drive on a material, such as soft cloth, that absorbs the physical shock. • Do not apply pressure to the cover of the drive. • Do not touch the connector. The drive is very sensitive. Incorrect handling can cause damage and permanent loss of data on the hard disk. Before removing the hard disk drive, make a backup copy of all the information on the hard disk, and then turn the computer off. Never remove the drive while the system is operating or in sleep mode. 30 Appendix A. CRU instructions To replace the hard disk drive, do the following: 1 Turn off the computer. Disconnect the AC power adapter and all cables from the computer. 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 a . b.Remove the compartment cover b . Lenovo G40-30/G40-45/G40-70/G40-70m/Z40-70/Z40-751 1 2 2 31 Appendix A. CRU instructions Lenovo G50-30/G50-45/G50-70/G50-70m/Z50-70/Z50-75 1 1 1 2 2 5 Remove the frame fixing screws c . Lenovo G40-30/G40-45/G40-70/G40-70m/Z40-70/Z40-75 3 3 3 32 Appendix A. CRU instructions Lenovo G50-30/G50-45/G50-70/G50-70m/Z50-70/Z50-75 3 3 3 6 Pull the hard disk drive tab in the direction shown by arrow d . Lenovo G40-30/G40-45/G40-70/G40-70m/Z40-70/Z40-75 4 33 Appendix A. CRU instructions Lenovo G50-30/G50-45/G50-70/G50-70m/Z50-70/Z50-75 4 7 Take out the hard disk drive secured in a metal frame e . Lenovo G40-30/G40-45/G40-70/G40-70m/Z40-70/Z40-75 5 34 Appendix A. CRU instructions Lenovo G50-30/G50-45/G50-70/G50-70m/Z50-70/Z50-75 5 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; then push it firmly into space. A Reinstall the frame fixing screws. B After aligning the attachment clips with their matching gaps, reinstall the compartment cover. C Reinstall and tighten the screws. D Reinstall the battery pack. E Turn the computer over again. F Connect the AC power adapter and the cables to the computer. 35 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. DDR3 SDRAM is available in various capacities. Notes: • Use only the memory types supported by your computer. If you incorrectly install optional memory, or install an unsupported memory type, a warning beep will sound when you try to start the computer. • Select models of the computer may have only one memory slot. Refer to the actual product. However, the procedure for replacing the memory is the same as listed below. To install DDR3 SDRAM, do the following: 1 Touch a metal table or a grounded metal object to reduce any static electricity in your body, which could damage the DDR3 SDRAM. Do not touch the contact edge of the DDR3 SDRAM. 2 Turn off the computer. Disconnect the AC power adapter and all cables from the computer. 3 Close the computer display and turn the computer over. 4 Remove the battery pack. 5 Remove the Optical drive/Hard disk drive/Memory/Central processing unit/Mini PCI Express Card slot compartment cover. 36 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. 1 21 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° angle. 8 Push the DDR3 SDRAM inward toward the socket until the latches on both edges of the socket are pushed into the closed position. 2 1 9 After aligning the attachment clips with their matching gaps, reinstall the compartment cover. 0 Reinstall and tighten the screws. A Reinstall the battery pack. B Turn the computer over again. 37 Appendix A. CRU instructions C Connect the AC power adapter and the cables to the computer. Note: 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 ( ). a b To make sure that the DDR3 SDRAM is installed correctly, do as follows: 1 Shut down the computer. 2 Press the Novo button and then select BIOS Setup. The BIOS setup utility screen opens. The System Memory item shows the total amount of memory installed in your computer. 38 Appendix A. CRU instructions Replacing the wireless LAN card - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - To replace the wireless LAN card, do the following: 1 Turn off the computer; then disconnect the AC power adapter and all cables from the computer. 2 Close the computer display, and then 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 Disconnect the two wireless LAN cables (one black, one grey) . Note: The wireless LAN card in select models may have only one cable (black). 39 a 1 Appendix A. CRU instructions 6 Remove the screw that secures the wireless LAN card . 7 Take out the wireless LAN card . 8 Install the new wireless LAN card. 9 Reinstall and tighten the screw. b 2 c 3 40 Appendix A. CRU instructions 0 Reconnect the two wireless LAN cables (one black, one grey). Note: When installing or reinstalling the wireless card: • In models with a wireless LAN card that has two cables: Plug the black cable (MAIN) into the jack labeled M(Main). Plug the grey cable (AUX) into the jack labeled A(Aux). • In models with a wireless LAN card that has only one cable, plug the black cable (MAIN) into the jack labeled M(Main). A Reinstall the compartment cover and tighten the screws. B Reinstall the battery pack. C Turn the computer over again. D Connect the AC power adapter and the cables to the computer. 41 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. 2 Remove the screw shown in the illustration . 3 Gently pull the optical drive out . a b 2 1 42 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, and Setup Guide User Guide AC power adapter O Power cord for AC power adapter O Battery pack O O Bottom access doors O Hard disk drive O Memory O Wireless LAN card O Optical drive O 43 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 marks of others. 44 en-US Rev. AA00

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