G40/G50/Z40/Z50
User Guide
Read the safety notices and important tips in the
included manuals before using your computer.
Lenovo
G40/G50/Z40/Z50
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 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
Contents
Top view.......................................................................................................................1
Left-side view ..............................................................................................................9
Right-side view..........................................................................................................12
Front view ..................................................................................................................14
Bottom view...............................................................................................................15
Operating system interfaces....................................................................................16
The charms.................................................................................................................17
Touch screen operation (G50-80 Touch)................................................................20
Connecting to a wireless network ..........................................................................24
Help and support......................................................................................................25
Frequently asked questions.....................................................................................27
Troubleshooting ........................................................................................................29
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/
Replacing the keyboard............................................................................................48
Removing the optical drive .....................................................................................53
Trademarks............................................................................................55
i
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
2
1
2
3
4
5
6
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.
2
Chapter 1. Getting to know your computer
Use the camera for video communication or taking
photos.
Integrated
camera
a
b
Captures sound which can be used for video conferencing,
voice narration, or audio recording.
Built-in
microphone
Note: Select models may have only one microphone, please refer to the actual product.
Connect to a wireless LAN adapter to send and receive
wireless radio signals.
Wireless LAN
antennas
c
d
Provides brilliant visual output.
Computer display
e
f
Power button
Touchpad
Press this button to turn on the computer.
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
.
3
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
a
function keys
.
b
Lenovo G40-30/G40-45/G40-70/G40-70m/G40-80/Z40-70/Z40-75
2
1
The following describes the features of each function key.
Fn + Home:
Activates the pause function.
Activates the break function.
Enables/disables the scroll lock.
Activates the insert function.
Fn + End:
Fn + PgUp:
Fn + PgDn:
4
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
2
1
The following describes the features of each function key.
Fn + Home:
Activates the pause function.
Activates the break function.
Enables/disables the scroll lock.
Activates the system request.
Fn + End:
Fn + PgUp:
Fn + PgDn:
5
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
Lenovo G50-30/G50-45/G50-70/G50-70m/G50-80/G50-80 Touch/
Z50-70/Z50-75
Enables/disables Airplane
Mutes/unmutes the sound.
Decreases the volume level.
Increases the volume level.
:
:
:
:
:
:
mode.
Displays all currently active
apps.
Turns on/off the backlight of
the LCD screen.
Toggles the display between
the computer and an external
device.
Closes the currently active
window.
:
:
Refreshes the desktop or the
Decreases the display
:
:
:
:
currently active window.
brightness.
Enables/disables the
touchpad.
Increases the display
brightness.
6
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
2
Shut down the computer.
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.
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
a
b
Connect the AC power adapter here.
AC power
adapter jack
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.
Novo button
c
Dissipate internal heat.
Ventilation slots
Note: Make sure that the ventilation slots are not blocked or else the computer may overheat.
d
e
f
Connects to external display devices.
VGA port
RJ-45 port
HDMI port
Connects the computer to an Ethernet network.
Connects to devices with HDMI input such as a TV or an
external display.
g
Connects to USB devices.
USB port
Notes:
•
•
The blue port is a USB 3.0 port.
9
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 -----------------------------------------------------------------------------------
1
2
3
4
5
Connects to headset.
Combo audio
jack
a
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.
Insert memory cards (not supplied) here.
Memory card slot
b
c
Connects to USB devices.
USB port
Notes:
•
•
The blue port is a USB 3.0 port.
Reads/burns optical discs.
Optical drive
d
e
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.
Kensington lock
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 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
2
Push the memory card in until you hear a click.
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 -----------------------------------------------------------------------------------------------
1
System status
indicators
a
Indicator
status
Charge
status
Symbol Indicator
Meaning
On (solid
white)
---
The computer is powered on.
Power
Blinking
---
---
The computer is in sleep mode.
Off
The computer is powered off.
The battery has more than 80%
charge.
Charging
Discharging
Discharging
On (solid
white)
The battery has more than 20%
charge.
On (solid
amber)
The battery has between 5% and
20% charge.
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
(white)
Charging
Battery
The battery has less than 20%
charge. When the battery charge
reaches 20%, the blinking color will
change to white.
Blinking
slowly
(amber)
Charging
Blinking
quickly
(amber)
Charging/
Discharging
The battery has less than 5% charge.
14
Chapter 1. Getting to know your computer
Bottom view ------------------------------------------------------------------------------------------
1
2
3
4
4
The manual battery pack latch is used to keep the battery
pack secured in place.
Battery pack
latch - manual
a
Battery pack
b
c
The spring-loaded battery pack latch keeps the battery
pack secured in place.
Battery pack
latch - spring-
loaded
The stereo speakers provide rich and powerful sound.
Speakers
d
Note: For sound effects and speaker locations specific to your model, refer to the actual product.
15
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
To switch from the desktop to the Start screen, do one of the following:
• Select Start from the charms bar.
+ D.
• Press the Windows key
.
• Move the cursor to the lower-left corner, and then select the Start button.
Start screen Desktop
16
Chapter 2. Starting to use Windows 8.1
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.
• Use one finger to swipe in from the right edge of the screen until the
charms bar is displayed. (G50-80 Touch)
• 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.
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.
• Press and hold or right-click the Start button in the lower-left corner and
select Shut down or sign out Shut down.
• Select
Shut down in the upper-right corner of the Start screen.
Note: The operation depends on the BIOS setup. Please refer to the actual product.
19
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.
Multi-touch gestures
You can touch the screen with one or more fingertips to perform a variety of
tasks.
Frequently used gestures
Tasks performed
Tap
Tap once on an item.
Performs an action, such as starting an
app, opening a link, or performing a
command. Similar to left-clicking with
a mouse.
Press and hold
Press your finger down and leave it there
for a moment.
Enables you to see detailed
information before selecting an action.
Can also open a menu with more
options. Similar to right-clicking with
a mouse.
20
Chapter 2. Starting to use Windows 8.1
Tasks performed
(Continued)
Frequently used gestures
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.
Rotate
Place two or more fingers on an item and
then turn your hand.
Rotates an object (Note: Not all items can
be rotated, depending upon the app.).
Slide
Drag your finger across the screen.
Pans or scrolls through lists and pages.
Can also move an object or be used to
draw or write, depending upon the
app. Similar to pressing and holding to
pan and to scrolling with a mouse.
21
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.
If you have an app currently open, you
can also:
•
Swipe from the top edge to halfway
down the screen without lifting
your finger to dock that app on the
left or right side of the screen. This
enables you to keep two apps open
simultaneously in a split-screen
format.
•
Swipe from the top edge straight
down to the bottom edge of the
screen continuously without lifting
your finger to close the currently
open app.
22
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:
•
Swipe in from the left to bring in an
app and, without lifting your finger,
push that app quickly back off the
left edge of the screen. This displays
a list of the apps currently running
in the background.
Swiping in from the right edge of the
screen displays the charms.
23
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.
24
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.
25
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 status in case of a system failure. You can also create user backups
for easy restoration as required.
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
2
3
Press the Novo button to start the Lenovo OneKey Recovery System.
Click System Backup.
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 can choose to restore the system partition to its original status or to a
previously created back-up point. To restore the system partition:
1
2
3
Press the Novo button to start the Lenovo OneKey Recovery System.
Click System Recovery. The computer will restart to the recovery environment.
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.
26
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.
27
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.
28
Chapter 4. Troubleshooting
Troubleshooting--------------------------------------------------------------------------------------
Display problems
When I turn on the computer,
nothing appears on the screen.
•
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.
•
29
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.
30
Chapter 4. Troubleshooting
Sound problems
No sound can be heard from
the speaker even when the
volume is turned up.
•
•
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-
Discharge and recharge the battery pack.
Your computer operates after
the battery status indicator
shows empty.
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.
31
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.
32
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/G40-80/G50-30/G50-45/G50-70/G50-70m/G50-80/
G50-80 Touch/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
3
Close the computer display and turn the computer over.
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.
3
4
1
4
2
4
5
6
7
Install a fully charged battery pack.
Slide the manual battery pack latch to the locked position.
Turn the computer over again.
Connect the AC power adapter and the cables to the computer.
33
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.
34
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
3
4
Close the computer display and turn the computer over.
Remove the battery pack.
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/G40-80/Z40-70/Z40-75
1
1
2
2
35
Appendix A. CRU instructions
Lenovo G50-30/G50-45/G50-70/G50-70m/G50-80/G50-80 Touch/
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/G40-80/Z40-70/Z40-75
3
3
3
36
Appendix A. CRU instructions
Lenovo G50-30/G50-45/G50-70/G50-70m/G50-80/G50-80 Touch/
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/G40-80/Z40-70/Z40-75
4
37
Appendix A. CRU instructions
Lenovo G50-30/G50-45/G50-70/G50-70m/G50-80/G50-80 Touch/
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/G40-80/Z40-70/Z40-75
5
38
Appendix A. CRU instructions
Lenovo G50-30/G50-45/G50-70/G50-70m/G50-80/G50-80 Touch/
Z50-70/Z50-75
5
8
9
0
Remove the screws and detach the metal frame from the hard disk drive.
Attach the metal frame to a new hard disk drive and tighten the screws.
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
B
Reinstall the frame fixing screws.
After aligning the attachment clips with their matching gaps, reinstall the
compartment cover.
C
D
E
F
Reinstall and tighten the screws.
Reinstall the battery pack.
Turn the computer over again.
Connect the AC power adapter and the cables to the computer.
39
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
4
5
Close the computer display and turn the computer over.
Remove the battery pack.
Remove the Optical drive/Hard disk drive/Memory/Central processing
unit/Mini PCI Express Card slot compartment cover.
40
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
2
1
7
8
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.
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
A
B
Reinstall and tighten the screws.
Reinstall the battery pack.
Turn the computer over again.
41
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 ( ).
a
b
To make sure that the DDR3 SDRAM is installed correctly, do as follows:
1
2
Shut down the computer.
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.
42
Appendix A. CRU instructions
Replacing the wireless LAN card ---------------------------------------
To replace the wireless LAN card, do the following:
1
Turn off the computer. Disconnect the AC power adapter and all cables
from the computer.
2
3
4
Close the computer display and turn the computer over.
Remove the battery pack.
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) a.
1
Note: The wireless LAN card in select models may have only one cable (black).
43
Appendix A. CRU instructions
6
Remove the screw that secures the wireless LAN card b.
2
7
Take out the wireless LAN card c.
3
8
9
Install the new wireless LAN card.
Reinstall and tighten the screw.
44
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
B
C
D
Reinstall the compartment cover and tighten the screws.
Reinstall the battery pack.
Turn the computer over again.
Connect the AC power adapter and the cables to the computer.
45
Appendix A. CRU instructions
Replacing the thermal fan (Lenovo G50-30/
G50-45/G50-70/G50-70m/G50-80/G50-80 Touch/
Z50-70/Z50-75) -------------------------------------------------------------------------------------
Note: For the Lenovo G40-30/G50-30, select models (computers with UMA architecture) do
not have a thermal fan.
To replace the thermal fan, do the following:
1
Turn off the computer. Disconnect the AC power adapter and all cables
from the computer.
2
3
4
Close the computer display and turn the computer over.
Remove the battery pack.
Remove the Optical drive/Hard disk drive/Memory/Central processing
unit/Mini PCI Express Card slot compartment cover.
Disconnect the thermal fan connector in the direction shown by
5
arrow a.
1
Note: Be careful not to damage the thermal fan connector.
46
Appendix A. CRU instructions
6
7
8
Remove the screws that secure the thermal fan b.
2
2
2
Remove the thermal fan c.
3
Install the new thermal fan and reconnect the thermal fan connector.
Make sure that the connector is attached firmly.
Reinstall and tighten the screws.
Reinstall the compartment cover and tighten the screws.
Reinstall the battery pack.
9
0
A
B
C
Turn the computer over again.
Connect the AC power adapter and the cables to the computer.
47
Appendix A. CRU instructions
Replacing the keyboard --------------------------------------------------------------
To replace the keyboard, do the following:
1
Turn off the computer. Disconnect the AC power adapter and all cables
from the computer.
2
3
4
Close the computer display and turn the computer over.
Remove the battery pack.
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 a.
Lenovo G40-30/G40-45/G40-70/G40-70m/G40-80/Z40-70/Z40-75
1
1
1
48
Appendix A. CRU instructions
Lenovo G50-30/G50-45/G50-70/G50-70m/G50-80/G50-80 Touch/
Z50-70/Z50-75
1
1
1
6
Push the area of the keyboard highlighted and shown by arrow b to
loosen.
Lenovo G40-30/G40-45/G40-70/G40-70m/G40-80/Z40-70/Z40-75
2
49
Appendix A. CRU instructions
Lenovo G50-30/G50-45/G50-70/G50-70m/G50-80/G50-80 Touch/
Z50-70/Z50-75
2
7
Loosen the keyboard with fingers c, and then lift the keyboard
slightly d.
Lenovo G40-30/G40-45/G40-70/G40-70m/G40-80/Z40-70/Z40-75
3
4
3
50
Appendix A. CRU instructions
Lenovo G50-30/G50-45/G50-70/G50-70m/G50-80/G50-80 Touch/
Z50-70/Z50-75
3
4
3
8
Disconnect the keyboard connector in the direction shown by arrows e
and f. Then remove the keyboard.
Lenovo G40-30/G40-45/G40-70/G40-70m/G40-80/Z40-70/Z40-75
5
6
51
Appendix A. CRU instructions
Lenovo G50-30/G50-45/G50-70/G50-70m/G50-80/G50-80 Touch/
Z50-70/Z50-75
5
6
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.
Reinstall and tighten the screws.
Reinstall the compartment cover and tighten the screws.
Reinstall the battery pack.
Turn the computer over again.
Connect the AC power adapter and the cables to the computer.
A
B
C
D
E
52
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
3
Remove the screw shown in the illustration
.
a
Gently pull the optical drive out
.
b
2
1
53
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
O
O
O
O
O
O
O
O
O
O
O
Bottom access doors
Hard disk drive
Memory
Wireless LAN card
Thermal Fan
Keyboard
Optical drive
54
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.
55
en-US
Rev. RT01
|