Lenovo Personal Computer 10086 3109 4743 [K430] User Manual

Machine type: 10086/3109/4743 [K430]  
10089/1168/4744 [K410]  
10090/2556/4748 [K415]  
10121/90A1  
10120/90A0  
[K450 ES]  
[K450 Non-ES]  
IdeaCentre K4 Series  
User Guide  
Version 3.0  
2012.12  
31503699  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Important Safety Information  
Before using this manual, it is important that you read and understand all of the  
related safety information for this product. Refer to the Safety and Warranty Guide  
that you received with this product for the latest safety information. Reading and  
understanding this safety information reduces the risk of personal injury or product  
damage.  
The interface and functions shown in this User Guide are provided for reference  
only and may differ from actual product appearance. Product design and  
specifications may be changed without notice.  
Danger: Be aware of extremely hazardous or potentially lethal situations.  
Attention: Be aware of possible damage to programs, devices, or data.  
Note: Pay attention to this important information.  
© Copyright Lenovo 2013. All rights reserved.  
LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered  
pursuant a General Services Administration “GSA” contract, use, reproduction, or  
disclosure is subject to restrictions set forth in Contract No. GS-35F-05925.  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Download from Www.Somanuals.com. All Manuals Search And Download.  
Contents  
Contents  
Download from Www.Somanuals.com. All Manuals Search And Download.  
i
ii  
Contents  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Using the Computer Hardware  
This chapter contains the following  
topics:  
Introduction to the computer hardware  
Information on computer connections  
Note: The descriptions in this chapter  
might be different from what you see on  
your computer, depending on the computer  
model and configuration.  
User Guide  
1
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Front view of the chassis  
Attention: Be careful not to block any air vents on the computer. Blocked  
air vents can cause overheating.  
Power button  
Power Control Switch indicator ON/OFF (selected models only)  
Hard disk drive indicator  
Power control switch (selected models only)  
Memory card readers (selected models only)  
USB connector/USB power off charging connector (selected models only)  
Microphone connector  
Headphone connector  
Optical drives (some models are equipped with only one optical drive)  
Hot-swappable HDD port (selected models only)  
Attention: Do not insert 3-inch discs into the optical drive.  
2
User Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Rear view of the chassis  
(If the rear view configuration shown in this chapter is different from the rear of your  
computer, please refer to the rear of your computer.)  
IdeaCentre K450  
Voltage selection switch (selected models only)  
Power connector  
DisplayPort connector (selected models only)  
HDMI connector (selected models only)  
On-board VGA connector  
USB 3.0 connector (selected models only)  
USB 2.0 connector  
Ethernet connector  
Audio connectors  
PCI Express X 16 graphics adapter slot (some models are equipped with a  
graphics card)  
User Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
3
 
PCI Express X 1 adapter slots (some models are equipped with a WIFI card  
or TV tuner card)  
IdeaCentre K430  
Voltage selection switch (selected models only)  
Power connector  
HDMI connector (selected models only)  
USB connectors  
DisplayPort connector (selected models only)  
On-board VGA connector  
Ethernet connector  
Audio connectors  
PCI Express X 16 graphics adapter slots (some models are equipped with a  
graphics card)  
4
User Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
PCI Express X 1 adapter slots (some models are equipped with a WIFI card  
or TV tuner card)  
IdeaCentre K410  
Voltage selection switch (selected models only)  
Power connector  
USB connectors  
HDMI connector (selected models only)  
On-board VGA connector  
Ethernet connector  
Audio connectors  
PCI Express X 16 graphics adapter slot (some models are equipped with a  
graphics card)  
PCI Express X 1 adapter slots (some models are equipped with a WIFI card  
or TV tuner card)  
User Guide  
5
Download from Www.Somanuals.com. All Manuals Search And Download.  
IdeaCentre K415  
Voltage selection switch (selected models only)  
Power connector  
USB connectors (USB ports 4 to 6)  
HDMI connector (selected models only)  
On-board VGA connector  
Ethernet connector  
Audio connectors  
PCI Express X 16 graphics adapter slot (some models are equipped with a  
graphics card)  
PCI Express X 1 adapter slots (some models are equipped with a WIFI card  
or TV tuner card)  
Note: If your model has two VGA monitor connectors, be sure to use the  
connector on the graphics adapter.  
6
User Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Basic connector instructions  
Connector  
Description  
Microphone  
Use this connector to attach a microphone to your  
computer when you want to record sound or if you  
use speech-recognition software.  
Headphone  
Use this connector to attach headphones to your  
computer when you want to listen to music or  
other sounds without disturbing anyone.  
Audio line-in connector  
Used to receive audio signals from an external  
audio device, such as a stereo system. When  
you attach an external audio device, a cable is  
connected between the audio line-out connector  
of the device and the audio line-in connector of  
the computer.  
Audio line-out connector  
Used to send audio signals from the computer  
to external devices, such as powered stereo  
speakers (speakers with built-in amplifiers),  
headphones, multimedia keyboards, or the audio  
line-in connector on a stereo system or other  
external recording device.  
USB connector  
Use this connector to attach a device that requires  
a USB connection.  
Ethernet connector  
VGA connector  
Use this connector to attach the computer to an  
Ethernet-type local area network.  
Used to attach a VGA monitor or other devices  
that use a VGA monitor connector.  
DVI connector  
Used to attach a DVI monitor or other devices that  
use a DVI monitor connector.  
HDMI connector (optional)  
Connects to the HDMI connector on your display  
or TV.  
DisplayPort connector  
(optional)  
Used to attach a high-performance monitor, a  
direct-drive monitor, or other devices that use a  
DisplayPort connector.  
TV-Tuner connector (optional) Only supported on systems with an optional TV  
tuner card.  
Note: If your computer is equipped with a wireless keyboard or mouse,  
follow the installation instructions for those devices.  
User Guide  
7
Download from Www.Somanuals.com. All Manuals Search And Download.  
Connecting your computer  
Note: Your computer may not have all of the connectors described in this  
section.  
Check the position of the voltage-selection switch on  
the rear of the computer. Use a ballpoint pen to slide  
the switch if necessary.  
Note: Some computers do not have a voltage switch. These computers  
control voltage automatically.  
If the voltage supply range is 100-127 V AC, set the switch to 115 V.  
If the voltage supply range is 200-240 V AC, set the switch to 230 V.  
230  
115  
8
User Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
5.1 Audio configuration instructions  
This model of computer supports the transformation of stereo sound into 5.1  
surround sound.  
Use the following guides when connecting to the 5.1 surround audio device:  
Blue line-in connector  
Surround  
Green line-out connector  
Front channel  
Pink Mic-in connector  
Center-LFE  
The configurations are as followings:  
1. Right click the Sound icon in system property bar and select Sounds option to  
setup the sounds in the pop-up dialog box.  
2. Select a playback device from the Playback dialog box, then click the  
Configure button to configure it.  
3. Select 5.1 surround from audio channels in the pop-up Speaker setup dialog  
box to proceed with the speaker setup by following the prompts.  
4. 5.1 surround sound can be used once this configuration procedure is complete.  
Note: If the audio configuration interfaces above are different from  
those on your computer, you may use the above steps as a reference to  
configure the 5.1 surround sound audio device system in your actual audio  
configuration interface and read the electronic Help information for further  
assistance.  
User Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
9
 
7.1 Audio configuration instructions  
Use the following illustration when connecting a 7.1 surround sound audio system  
S/PDIF out connector  
Microphone input Connector  
Audio line-out Connector  
Center / Low frequency output  
connector  
Surround out connector  
Audio line-in Connector  
Note: For more detailed settings, from Control panel, select Hardware and  
Sound Lenovo HD Audio Manager. Follow the instructions to configure  
advanced settings.  
Sound configuration is as follows:  
1. Right click the Sound icon in the system property bar and select the Sounds  
option to set up sounds in the pop-up dialog box.  
2. Select a playback device from the Playback dialog box, then click the  
Configure button to configure it.  
10 User Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
3. Select 7.1 surround from audio channels in the pop-up Speaker setup dialog  
box and proceed with the speaker setup by following the prompts.  
4. 7.1 surround sound can be used once this configuration procedure is complete.  
Note: If the audio configuration interfaces above are different from those on  
your computer, you may use the above steps as a reference to configure the  
7.1 surround sound audio device system in your actual audio configuration  
interface and read the electronic Help information for further assistance.  
Connecting the power cord  
Connect the power cord to an electrical outlet. We recommend using a grounded  
connection or a surge protector.  
User Guide 11  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Display connecting instructions when  
playing Blu-ray Discs  
Note: Only some models are equipped with Blu-ray optical drive.  
Check the connectors available on your computer and display and select an  
appropriate cable according to the table below. Other types of cables do not meet  
the requirements of the Blu-ray standard.  
You need to purchase the cable separately if the computer is not equipped with  
the corresponding cable.  
This table will help you to identify the connectors on your computer and display.  
Connection Type Computer  
Cable  
Display  
DVI to DVI  
(DVI cable)  
DVI to HDMI  
(DVI-HDMI cable)  
HDMI to HDMI  
(HDMI cable)  
HDMI to DVI  
(HDMI-DVI cable)  
Connecting to the Internet  
To connect to the Internet, you’ll need a contract with an Internet Service Provider  
(ISP) and some hardware.  
IPSs and ISP offerings vary by country. Contact your ISP for offerings available in  
your country.  
Your computer is designed to support a wireless (selected models only) or wired  
network that connects your computer to other devices.  
Wired network connection  
For wired networks, connect one end of an Ethernet cable (purchased separately)  
to the Ethernet connector on your computer, and then connect the other end to  
the network router or broadband modem. Consult your ISP for detailed setup  
instructions.  
Note: Broadband modem and router installation procedures vary  
depending on the manufacturer. Follow the manufacturer’s instructions.  
12 User Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Wireless network connection  
For wireless networks, you can use the built-in wireless LAN antenna to access  
your wireless home network.  
To connect your computer to the wireless network:  
1. Move the cursor to the top right or bottom right corner of the screen, then click  
Settings. (If your computer is equipped with touch screen, swipe in from the  
right edge of the screen, then tap Settings.)  
2. Click or tap the network icon  
, then select the name of your router. Click or  
tap Connect, then follow the steps on the screen.  
Test the wireless network by opening your Web browser and accessing any Web  
site.  
Wired keyboard (selected models only)  
LVT —— After entering Windows, press this key to launch the LVT (Lenovo  
Vantage Technology) program, Lenovos pre-loaded Home PC software.  
In addition to its own functions, the LVT program will allow you to start  
other Windows compatible software specially configured to run on this  
model of computer.  
Notes:  
• Some models are not equipped with the LVT program.  
• The LVT key on the keyboard is disabled in the models  
without the LVT program.  
F2 —— Your computer has the Lenovo Rescue System installed. To learn more  
about this program, repeatedly press and release the F2 key once  
turning on the computer until the Lenovo Rescue System opens.  
User Guide 13  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Hot-swappable hard disk (selected models  
only)  
Components  
Hot-swappable hard disk  
USB adapter  
USB cable  
You can plug in the hot-swappable hard disk while the computer system using it is  
working, without damaging the hard disk data. You can back up the data on this  
hot-swappable hard disk at any time for data maintenance or data transmission.  
Using the hot-swappable hard disk  
Method 1: Slide it into the bay from the front until it clicks into position.  
14 User Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Method 2: Pull the hot-swappable hard disk drive out of the drive bay, then  
connect the hot-swappable hard disk drive to the other computer.  
Notes:  
• Do not unplug the hard disk while it is copying data, as this may result  
in loss of data.  
• After connecting the hard disk and all the cables, wait a moment to  
allow the system to recognise the hard disk.  
• Do not install the operating system on the hot-swappable hard disk.  
• Do not unplug the hard disk while it is running a program, as this may  
result in the system crashing.  
User Guide 15  
Download from Www.Somanuals.com. All Manuals Search And Download.  
• After removing the hard disk, be careful not to damage it.  
• In the Rescue System program, the hot-swappable hard disk can not  
be recognised.  
Power Control Switch (selected models only)  
The Power Control Switch feature allows your computer to switch to different  
modes, thus providing you with customized experiences during operations.  
Operation of the Power Control Switch  
The Power Control Switch function supports three operating modes: Auto, Turbo  
and Cool. You can optimize system resources by toggling between those three  
different modes. Different modes are used for different applications. In Auto and  
Cool mode, computer will boot up quickly; in Turbo mode, computer will boot up  
very quickly.  
Switch to a different mode by toggling the power control switch.  
16 User Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Press the Power Control Switch indicator ON/OFF button to open the indicator  
under the front panel and set the different lighting effects in each mode.  
To display the main screen of the software  
Double click the Power Control Switch icon from the Start charm or the Desktop.  
Open the running status for  
each component under the  
Mode Switch:  
CPU — Show the  
percentage of  
the current CPU  
clock frequency  
against the nominal  
maximal CPU clock  
frequency.  
Boot — The status of the  
computer startup  
speed.  
User Guide 17  
Download from Www.Somanuals.com. All Manuals Search And Download.  
AUTO  
Auto adjust the system CPU  
clock frequency and running  
speed. Toggle the Power  
Control Switch to the Auto  
position to enable this mode.  
Note:  
The numeric values may  
vary because each model is  
configured differently.  
COOL  
The CPU runs at low  
frequency. The system  
consumes minimum power.  
Toggle the Power Control  
Switch to the Cool position  
to enable this mode.  
18 User Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Note:  
The numeric values may  
vary because each model is  
configured differently.  
TURBO  
The CPU runs at full speed.  
The system achieves its  
optimal performance. Toggle  
the Power Control Switch to  
the Turbo position to enable  
this mode.  
Note:  
The numeric values may  
vary because each model is  
configured differently.  
User Guide 19  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Notes:  
• When you are running system-intensive games or other programs that  
consume a high proportion of the system resources, you should choose  
Turbo mode. This will allow you to achieve optimal performance.  
• After unplugging and reconnecting the power cord to the outlet, the  
computer cannot boot up at ultra speed in Turbo mode. In order to  
keep ultra speed during the boot up, the computer must always keep  
connecting the outlet.  
Toggle the Power Control Switch to the Auto or Boot position when  
using OneKey Recovery program.  
20 User Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Using Windows 8  
This chapter contains the following  
topics:  
Switching between the main Windows 8 interfaces  
The Charms Bar  
Shutting down the computer  
Switching between apps  
Closing an app  
Opening other system programs  
Windows Help and Support  
Attention: The Windows 8 operating system  
is provided by Microsoft Corporation. Please  
use it in accordance with the END USER  
LICENSE AGREEMENT (EULA) between you  
and Microsoft. For any question related to the  
operating system, please contact Microsoft  
directly.  
User Guide 21  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Switching between the main Windows 8  
interfaces  
Windows 8 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.  
Move the cursor to the bottom left corner, then select the Start Screen  
thumbnail when it is displayed.  
Press the Windows key  
.
The Charms Bar  
Charms provide new and faster ways to perform many basic tasks.  
To display the charms, do one of the following:  
Move the cursor to the top right or bottom right corner of the screen.  
If your computer is equipped with touch screen, swipe in from the right edge of  
the screen.  
Press the Windows key  
+ C.  
Shutting down the computer  
To shut down the computer:  
1. Move the cursor to the top right or bottom right corner of the screen, then click  
Settings. (If your computer is equipped with touch screen, swipe in from the  
right edge of the screen, then tap Settings.)  
2. Select Power Shutdown.  
22 User Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Switching between apps  
Sometimes you want to get back to an app you were just using, or quickly switch  
through your recent apps.  
To switch between apps:  
Move the cursor to the top left corner, then click to bring in the next app. (If your  
computer is equipped with touch screen, swipe in from the left edge of the screen  
to bring in the next app.)  
Closing an app  
To close an app, do one of the following:  
Move the cursor to the top left corner of the screen. When the thumbnail  
appears, drag it to the bottom of the screen.  
Move the cursor to the top edge of the screen. When the cursor becomes a  
hand, drag the app page to the bottom of the screen.  
If your computer is equipped with touch screen, swipe in from the top edge of  
the screen. When the app page becomes smaller, drag it to the bottom of the  
screen.  
Opening other system programs  
There is a fast way to open other system programs.  
To open the menu, do one of the following:  
Move the cursor to the bottom left corner of the screen. When the thumbnail  
appears, right-click with the mouse to open the menu.  
Press the Windows key  
+ X.  
Windows 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 the Settings charm, then select Help.  
Press the Windows key + F1.  
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.  
User Guide 23  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
24 User Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Using the Rescue System  
This chapter contains the following  
topics:  
OneKey Recovery  
Driver and Application Installation  
Attention: Using OneKey Recovery will result  
in loss of data.  
You can restore the C: drive of the computer  
to factory default settings or to the last system  
backup status using OneKey Recovery. If you  
do this, all of the existing data on drive C: will  
be lost, but the content and format of the other  
partitions of the hard disk drive will remain  
unchanged.  
If you want to install an operating system and  
back it up with OneKey Recovery, you must  
format the C: partition in NTFS format and  
install the operating system on the C: partition.  
Otherwise, the OneKey Recovery system cannot  
run.  
User Guide 25  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Note about the service partition:  
The files and relevant data used by the rescue system are saved in the service  
partition. Deleting this partition will make the rescue system unusable. For more  
detailed information, see the following instructions:  
From the Search charm, select Apps Control Panel Administrative Tools →  
Computer Management Disk Management, you can see the service partition,  
which must not be deleted.  
Note: The recovery files and relevant data used by the rescue system are  
saved in the service partition. If the service partition is deleted or damaged  
by someone other than authorized Lenovo service personnel, Lenovo will  
not be liable for any losses arising therefrom in any way.  
OneKey Recovery  
OneKey Recovery is an easy-to-use application. You can use it to restore your  
computer to the system default or to a previously backed up state.  
Detailed Operation Procedure  
1. Repeatedly press and release the F2 key once turning on the computer until  
the Lenovo Rescue System opens, then select OneKey Recovery.  
Note: System Recovery will overwrite all of the data on the C: drive. To  
prevent loss of data, be sure to back up relevant data before performing  
system recovery.  
2. Follow the on-screen instructions to select the backup task you want to restore  
from and the disk where you want to install the operating system, then press  
Next to start the restore.  
3. Please wait during the process of system recovery. Do not interrupt the  
operation during the recovery process.  
4. After the system is recovered successfully, the software will prompt you to  
restart the computer. Restart the computer and start the operating system.  
26 User Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Driver and Application Installation  
The Driver and Application Installation function in the rescue system provides a  
way for the user to conveniently reinstall all of the Lenovo applications and drivers  
that were shipped with your Lenovo hardware.  
Method 1: Automatic Installation  
Repeatedly press and release the F2 key once turning on the computer until the  
Lenovo Rescue System opens, then select Drivers and Application Installation.  
Follow the on-screen prompts to install the Lenovo drivers and applications. Click  
OK to start installing the Lenovo Drivers and Application Installation software.  
The system will restart. After the system has restarted, the drivers and application  
installation process will continue until it has completed.  
Method 2: Manual Installation  
In the Windows system, Select Driver and Application Installation from the  
Search charm.  
After starting the procedure, install the drivers and software manually by following  
the prompts.  
Notes:  
1. Do not install software which is already installed on the computer.  
2. Make sure that the Drivers and Application Installation software has  
been automatically installed before starting the operating system. The  
manual installation function can only be used after the software has  
been installed.  
User Guide 27  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
28 User Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Using the Software  
This chapter contains the following  
topic:  
Software instructions  
Note: The interface and functionality of these  
features will depend on which software  
was shipped with the computer model you  
purchased.  
User Guide 29  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Lenovo Support  
The Lenovo Support program enables you to register your computer with Lenovo,  
download and view user manuals for your computer, get the warranty information  
of your computer, and explore help and support information.  
To open this program, do the following:  
Click the Lenovo Support icon from the Start Screen or Search Screen.  
The main functions of this program are listed below. (This program supports  
online upgrades. The functions shown below are for reference only, functionality will  
depend on the program icons currently displayed.)  
Registration  
Registration provides you with access to product support, upgrades and alerts on  
topics. Take advantage of award-winning Lenovo services.  
User Guide  
The User Guide provides more information about your computer.  
Service and Warranty  
You can extend the warranty of your computer through this option. Lenovo  
provides flexible options to meet your personal or business needs.  
30 User Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Troubleshooting and  
Confirming Setup  
This chapter contains the following  
topic:  
Troubleshooting and Problem Resolution  
User Guide 31  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Solving Problems  
Follow these tips when troubleshooting your computer:  
If you added or removed a part before the problem started, review the  
installation procedures to ensure that the part is correctly installed.  
If a peripheral device does not work, ensure that the device is properly  
connected.  
If an error message appears on the screen, write down the exact message.  
This message may help support personnel diagnose and fix the problem(s).  
If an error message occurs in a program, see the Help document of this  
program.  
Troubleshooting Display Problems  
Problem: Blank screen or no image is displayed on the monitor.  
Troubleshooting and problem resolution:  
1. Check to see if the monitor has been turned on; if not, press the Power button.  
2. Check to see if the monitor power cord is loose; if so, plug the power cord  
securely into the monitor.  
3. Check to see if the signal cable to the monitor is securely connected to the  
connector on the computer graphics card; if not, shut down the computer  
then connect the signal cable of the monitor securely to the connector on the  
computer graphics card.  
Problem: You need to change the display property settings.  
Setting display background and icon properties:  
1. Right-click the desktop anywhere except over an icon, then select Personalize  
from the pop-up menu.  
2. From here, select the appropriate options to:  
Change the desktop background  
Select a screen saver  
Select Windows color options for borders and taskbar  
Select a themes  
3. Right-click the desktop anywhere except over an icon, then select Screen  
resolution from the pop-up menu to change the appearance.  
32 User Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Problem: Ripple on screen.  
Troubleshooting and problem resolution:  
1. Check to see if any of the following devices are located less than one meter  
from the computer: refrigerators, electric fans, electric dryers, UPS systems,  
regulators, fluorescent lamps or other computers that may be generating  
magnetic interference.  
2. Move any interfering devices away from the computer.  
3. If the problem persists, contact Lenovo Service.  
Troubleshooting Audio Problems  
Problem: No sound from the integrated speakers.  
Troubleshooting and problem resolution:  
Adjust the Windows volume control — select the speaker icon from the  
Settings Charm or click the arrow on taskbar to show the hidden icons in  
Windows desktop mode, then click the speaker icon. Ensure that the volume  
is turned up and the sound is not muted. Adjust the volume, bass, or treble  
controls to eliminate distortion.  
Reinstall the audio driver.  
Disconnect any headphones from the headphone connector — sound from  
the speakers is automatically disabled when headphones are connected to the  
computers side-panel headphone connector.  
Problem: No sound from headphones.  
Troubleshooting and problem resolution:  
Check the headphone cable connection — ensure that the headphone cable is  
securely inserted into the headphone connector.  
Adjust the Windows volume control — select the speaker icon from the  
Settings Charm or click the arrow on taskbar to show the hidden icons in  
Windows desktop mode, then click the speaker icon. Ensure that the volume is  
turned up and the sound is not muted.  
User Guide 33  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Troubleshooting Software Problems  
Problem: You are unable to exit a running program normally.  
Troubleshooting and problem resolution:  
1. Press the Ctrl, Alt and Delete keys at the same time, then select the Task  
Manager option from the pop-up dialog box.  
2. Select the problem program, then click the End Task button.  
Problem: You need to install or uninstall a program.  
Problem resolution:  
During installation never abort the install process by powering the system off or  
through other drastic means. This can cause system program problems or even  
failure during system initialization.  
During the uninstall process, never directly delete the files or folders. This is  
harmful to the operating system, and might cause a system-wide malfunction.  
Use the following procedure to properly uninstall programs:  
1. Back up all documents and system settings related to the program before  
removing it.  
2. If the program has its own uninstaller, run it directly to uninstall the program.  
3. If the program does not have its own uninstaller, then select Apps Control  
Panel from the Search charm.  
4. From the Control Panel, choose Programs Programs and Features.  
5. Find the applicable program from the Programs and Features dialog box and  
then select Uninstall/Change.  
6. Perform the instructions displayed to uninstall the software.  
Troubleshooting Problems with Optical Drives  
and Hard Disks  
Problem: The Optical drive is unable to read a CD/DVD.  
Troubleshooting and problem resolution:  
1. Check to determine if there is an optical drive icon in the resource manager  
of the operating system. If not, restart your computer. If there is still no icon,  
contact Lenovo Service. Otherwise, continue with the next step of this  
procedure.  
34 User Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
2. Confirm that the CD/DVD has been properly placed in the drive. If not, reload  
the CD or DVD. Otherwise, continue with the next step of this procedure.  
3. Check the specifications that came with your computer to confirm that this  
optical drive is capable of reading this type of CD or DVD.  
4. If the CD/DVD cannot be read, replace it with a known good CD/DVD such as  
one that was shipped with the computer.  
5. If the known good CD cannot be read, visually check the operating side of the  
CD/DVD for defects.  
Problem: The capacity of the hard disk, as indicated by the system, is less than  
the nominal capacity.  
Troubleshooting and problem resolution: For computers equipped with the  
OneKey Recovery feature, the system recovery feature needs to occupy some  
hard disk space. This may account for the apparent hard disk capacity deficit.  
Further Technical Explanation: The nominal capacity of the hard disk is  
expressed in the decimal system as 1000 bytes. But the actual hard disk capacity  
is expressed in the binary system as 1024 bytes (For example, the nominal  
capacity 1G is 1000M, while the actual capacity 1G is 1024M).  
The capacity of the hard disk shown in Windows can be calculated according to  
the calculations in the following example:  
The nominal capacity of the hard disk is 40G, while its actual capacity  
should be: 40 x 1000 x 1000 x 1000/(1024 x 1024 x 1024) = 37G.  
If the Service partition of 3G - 3 x 1000 x 1000 x 1000/(1024 x 1024 x  
1024) = 2.79G is subtracted, the capacity of the hard disk shown in the  
system can be obtained.  
The capacity of the hard disk as calculated using this method may be slightly  
different from the actual capacity due to the rounding of totals.  
Special considerations for troubleshooting  
Windows  
Record the following information as it may be useful later when troubleshooting  
system problems:  
The drivers for this computer model only support the Windows 8 system.  
User Guide 35  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Windows 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 the Settings charm, then select Help.  
Press Windows key + F1.  
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.  
BIOS setup utility  
What is the BIOS setup utility?  
The BIOS setup utility is ROM-based software. It communicates 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. Repeatedly press and release the F1 key once turning on the computer to start  
the Setup Utility program.  
How can I change the boot mode?  
There are two boot modes: UEFI and Legacy. To change the boot mode, start the  
BIOS setup utility and select Startup Boot Priority, then 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 the UEFI mode. If you need to install  
a legacy Windows operating system (any operating system before Windows 8) on  
your computer, you must change the boot mode to Legacy support. The legacy  
Windows operating system cannot be installed if you don’t change the boot mode.  
36 User Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Performing Daily Maintenance Tasks  
Cleaning the computer components  
Because many of the computer components consist of sophisticated integrated  
circuit boards, it is very important to periodically clean the computer to prevent  
dust buildup. The cleaning supplies you need to clean the components include:  
a vacuum cleaner, a soft cotton cloth, pure water (preferably purified or distilled  
water) and cotton swabs.  
Attention: Before you clean your computer, disconnect the computer  
from the electrical outlet. Clean your computer with a soft cloth  
dampened with water. Do not use liquid or aerosol cleaners, which may  
contain flammable substances.  
Note: To avoid damaging the computer or display, do not spray cleaning  
solution directly onto the display. Only use products specifically designed  
for cleaning displays, and follow the instructions included with the product.  
The following are general methods for cleaning the components:  
You can use a soft cloth to remove dust on the surface of the computer, the  
monitor, the printer, the speakers and the mouse.  
You can use a vacuum cleaner to clean in otherwise inaccessible corners.  
To clean the keyboard thoroughly, shut down the computer and scrub it gently  
with a wet cloth. Do not use the keyboard until it is dry.  
Do not do any of the following:  
Allow water to enter the computer.  
Use a heavily dampened cloth.  
Spray water directly onto the surface of the monitor or inside the computer.  
LCD monitor should be cleaned daily. Use a dry cloth to brush dust from the  
monitor and keyboard every day. Keep all surfaces clean and free of grease stains.  
User Guide 37  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
38 User Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Hardware Replacement Guide  
This chapter contains the following  
topics:  
Identifying internal components  
Identifying parts on the system board  
Removing the computer cover  
Removing the front bezel  
Replacing a memory module  
Replacing a hard disk drive  
Replacing an optical drive  
Replacing a graphics card  
Replacing the TV-Tuner card  
Replacing the keyboard and mouse  
User Guide 39  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Overview  
This guide is intended to be used by customers who are replacing Customer  
Replaceable Units (CRUs) as well as trained service personnel who are replacing  
Field Replaceable Units (FRUs). In this guide, CRUs and FRUs will often be referred  
to as parts.  
Note: Trained service personnel should refer to the Hardware Maintenance  
Manual (HMM) for parts ordering information.  
This guide does not include procedures for the replacement of all parts. It is  
expected that trained service personnel are already able to replace cables, switches,  
and certain mechanical parts without the need for step-by-step procedures.  
Note: Use only parts provided by Lenovo®.  
The description of the TV-Tuner card in this manual applies only to computer  
models with a TV-Tuner card, and therefore does not apply to models without a  
TV-Tuner card.  
This guide contains instructions for replacing the following parts:  
Memory modules  
Hard disk drive  
Optical disk drive  
Graphics card  
TV-Tuner card  
Safety information for replacing CRUs  
Do not open your computer or attempt any repairs before reading the “Important  
safety information” in the Safety and Warranty Guide that was included with your  
computer. An electronic copy of the Safety and Warranty Guide can also be  
40 User Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Additional information resources  
The most up-to-date information for your computer is available online at:  
You can find the following information:  
Customer replacement unit removal and installation information  
Publications  
Troubleshooting information  
Parts information  
Links to other useful sources of information  
Tools required  
To disassemble the computer, you will need the following tools:  
Wrist grounding strap and conductive mat for preventing electrostatic discharge  
Flat screwdriver  
Phillips screwdriver  
Hex screwdriver  
Plastic flat screwdriver  
Plastic tweezers  
Note: The screws used for the different components vary in size. During  
the disassembly procedure, group the screws with their corresponding  
components to avoid a mismatch when replacing the components.  
User Guide 41  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Handling static-sensitive devices  
Static electricity, although harmless to you, can seriously damage computer  
components.  
When replacing a part, do not open the anti-static packaging containing the new  
part until the defective part has been removed from the computer and you are  
ready to install the new part.  
When handling parts and other computer components, the following precautions  
should be taken in order to avoid static electricity damage:  
Limit your movements, as movement can cause the build-up of static electricity.  
Always handle parts and other computer components with care, and handle  
adapters, memory modules, system boards, and microprocessors by their  
edges. Never touch any exposed circuitry.  
Prevent others from touching parts and other computer components.  
Before replacing a new part, first place the anti-static packaging containing the  
part against a metal expansion slot cover or other unpainted metal surface on  
the computer for at least two seconds. This will reduce static electricity in the  
package and your body.  
When possible, remove the new part from its anti-static packaging and install it  
directly into the computer without setting the part down. If this is not possible,  
place the part on top of its anti-static packaging on a smooth, flat surface  
before installing it.  
Do not place parts on the computer cover or other metal surface.  
42 User Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Locations  
Identifying internal components  
The following illustration shows the components inside your computer.  
1
2
3
4
6
5
Optical disk drive  
Graphics card  
System fan  
Hard disk drive  
System board  
Power supply  
User Guide 43  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Identifying parts on the system board  
The system board (also known as the “mainboard” or “motherboard”) is the main  
circuit board in your computer. It provides basic computer functions and supports  
a variety of devices that are factory-installed or that you can install later.  
The following illustrations show the locations of the different parts on the system  
board.  
Lenovo K450  
1
2
3
4
5
6
7
8
9
10  
11  
12  
13  
27 26 25 24 23 22  
21 20  
19  
18 17 16  
15  
14  
12V power connector  
Microprocessor fan header  
Thermal sensor header  
Power connector  
Microprocessor and heat sink  
Memory slots (4)  
Mini PCI-E slot  
Front USB slot  
44 User Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
PCI express X 16 adapter slot  
Solid state disk power connector  
eSATA connector  
SPI debug connector  
SATA connectors (4)  
Power fan header  
Front panel connector  
Battery  
Front USB 2.0 connector  
Clear CMOS jumper  
Mode switch connector  
ME disable jumper  
Front USB 3.0 connector  
Serial (COM2) connector  
LPC debug connector  
Front audio connector  
System fan header  
Clear CMOS jumper  
PCI express X 1 adapter slots (3)  
Lenovo K430  
1
2
3
4
5
6
7
17 16 15  
14 13 12  
11  
10  
9
8
User Guide 45  
Download from Www.Somanuals.com. All Manuals Search And Download.  
12V power connector  
Microprocessor fan header  
Power connector  
Microprocessor and heat sink  
Memory slots (4)  
Front USB header  
PCI express X 16 adapter slots (2)  
Front panel connector  
Front USB connector  
Serial (COM2) connector  
Front audio connector  
System fan header  
Power fan header  
Front USB connector  
Mode switch connector  
Battery  
PCI express X 1 adapter slots (2)  
Lenovo K410  
1
2
3
4
5
6
7
8
9
20 19 18 17 16 15 14  
13  
12 11 10  
46 User Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
12V power connector  
Microprocessor fan header  
Thermal sensor header  
Battery  
Microprocessor and heat sink  
Memory slots (2)  
Power connector  
SATA connectors (3)  
Power fan header  
eSATA connector  
Front panel connector  
Front USB connectors (2)  
Mode switch connector  
PCI express X 1 adapter slots (3)  
PCI express X 16 adapter slot  
Clear CMOS jumper  
Mini PCI-E slot  
Serial (COM2) connector  
Front audio connector  
System fan header  
Lenovo K415  
1
2
3
4
5
6
7
8
9
10  
11  
12  
13  
25 24 23 22 21  
20 19  
18  
17 16 15  
14  
User Guide 47  
Download from Www.Somanuals.com. All Manuals Search And Download.  
12V power connector  
Microprocessor and heat sink  
Memory slots (4)  
Battery  
Microprocessor fan header  
Thermal sensor header  
Power connector  
Mini PCI-E slot  
eSATA connector  
Power fan header  
LPC debug connector  
Solid state disk power connector  
(Optional)  
SATA connectors (4)  
Front panel connector  
Mode switch connector  
ROM socket  
Serial (COM2) connector  
SPI debug connector  
Front USB connector (2)  
Clear CMOS jumper  
Front USB header  
Front audio connector  
System fan header  
PCI express X 1 adapter slots (3)  
PCI express X 16 adapter slot  
Replacing hardware  
Attention: Do not remove the computer cover or attempt any repair  
before reading the “Important safety information” in the Safety and  
Warranty Guide that was included with your computer or in the Hardware  
Maintenance Manual (HMM) for the computer. To obtain copies of the  
Safety and Warranty Guide or HMM, go to the Support Web site at  
General information  
Pre-disassembly instructions  
Before proceeding with the disassembly procedure, make sure that you do the  
following:  
1. Turn off the power to the system and all peripherals.  
2. Unplug all power and signal cables from the computer.  
3. Place the system on a flat, stable surface.  
48 User Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Removing the computer cover  
Attention:  
Turn off the computer and wait 3 to 5 minutes to let it cool down  
before removing the cover.  
• For this procedure, it helps to lay the computer on a flat, stable  
surface.  
To remove the computer cover:  
1. Remove any media (disks, CDs, or memory cards) from the drives, shut down  
the computer, and turn off all attached devices.  
2. Unplug all power cords from electrical outlets.  
3. Disconnect all cables attached to the computer. This includes power cords,  
input/output (I/O) cables, and any other cables that are connected to the  
computer. Refer to “Locating connectors on the rear of the computer”.  
4. Remove the two screws that secure the computer cover at the rear of the  
chassis.  
5. Slide the computer cover out to remove it.  
User Guide 49  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Removing the front bezel  
Note: For this procedure, it helps to lay the computer on a flat, stable  
surface.  
To remove the front bezel:  
1. Remove the computer cover. Refer to “Removing the computer cover”.  
2. Remove the front bezel by releasing the three plastic tabs inside the chassis  
and sliding the bezel out as shown.  
3. To reattach the bezel, align the plastic tabs on the bottom of the bezel with the  
corresponding holes in the chassis, and then snap it into position.  
50 User Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Replacing a memory module  
Note: For this procedure, it helps to lay the computer on a flat, stable  
surface.  
To replace a memory module:  
1. Remove the computer cover. Refer to “Removing the computer cover”.  
2. Locate the memory module connectors. Refer to “Locating components”.  
3. Remove the memory module to be replaced by opening the retaining clips as  
shown.  
4. Position the new memory module over the memory connector. Make sure  
that the notch  
key on the system board. Push the memory module straight down into the  
connector until the retaining clips close.  
on the memory module aligns correctly with the connector  
5. Reattach the computer cover.  
User Guide 51  
Download from Www.Somanuals.com. All Manuals Search And Download.  
6. K415 Memory Installation Instructions  
Note: The following instructions apply for model K415 only.  
Lenovo K415  
1
2
3
4
Slot one  
Slot two  
Slot four  
Slot three  
When installing new memory module(s), follow the diagram below to insert the new  
memory module(s) into different slot(s) depending on how many memory modules  
are being installed.  
Total number of modules Insert location  
One memory module  
Two memory modules  
Slot one or three ( or  
Slots one and two, three and four or one and three  
, or  
Slots one, two and three or one, three and four  
)
(
,
)
Three memory modules  
Four memory modules  
(
or  
)
All slots  
52 User Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Replacing a hard disk drive  
Note: For this procedure, it helps to lay the computer on a flat, stable  
surface.  
To replace a hard disk drive:  
1. Remove the computer cover. Refer to “Removing the computer cover”.  
2. Disconnect the data and power cables from the hard disk drive.  
3. Lift up the plastic handle and slide the hard disk drive out of the drive bay.  
1
2
4. Remove the hard disk drive from the plastic bracket as shown.  
5. Line up the new hard disk drive with the plastic bracket and snap it into position.  
User Guide 53  
Download from Www.Somanuals.com. All Manuals Search And Download.  
6. Slide the new hard disk drive into the drive bay and slide the drive bay into  
place.  
7. Connect the power and signal cables to the new hard disk drive.  
8. Reattach the computer cover.  
Replacing an optical drive  
Note: For this procedure, it helps to lay the computer on a flat, stable  
surface.  
To replace an optical drive:  
1. Remove the computer cover. Refer to “Removing the computer cover”.  
2. Remove the front bezel. Refer to “Removing the front bezel”.  
3. Disconnect the data and power cables from the rear of the optical drive.  
4. Press the release button and push the optical drive straight out of the front of  
the chassis.  
1
2
3
5. Slide the new optical drive into the bay from the front until it snaps into position.  
6. Connect the data and power cables to the new disk drive.  
7. Reattach the front bezel and computer cover.  
54 User Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Replacing a graphics card  
Note: For this procedure, it helps to lay the computer on a flat, stable  
surface.  
To replace a graphics card:  
1. Remove the computer cover. Refer to “Removing the computer cover”.  
2. Follow the below steps to remove a graphics card:  
If your computer has a Duo-graphics cards installed, follow the steps  
below to replace it:  
a. Remove the screw that secures the Duo-graphics cards fixing bracket and  
lift the bracket up.  
User Guide 55  
Download from Www.Somanuals.com. All Manuals Search And Download.  
b. Remove the screw that secures the graphics card latch to the chassis,  
open it, and remove the Duo-graphics cards connector.  
c. Remove the screw that secures the graphics card to the chassis.  
4
3
2
1
d. Remove the graphics card by pulling it straight out of the connector.  
56 User Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
If your computer has a single graphics card installed, follow the steps  
below to replace it:  
a. Remove the screw that secures the graphics latch to the chassis and open  
it.  
b. Remove the screw that secures the graphics card to the chassis.  
3
2
1
c. Remove the graphics card by pulling it straight out of the connector.  
User Guide 57  
Download from Www.Somanuals.com. All Manuals Search And Download.  
3. Install the new adapter into the same adapter connector and secure it to  
chassis with the screw.  
4. Turn the graphics card latch to the closed position and secure it with the screw.  
5. Connect the two graphics cards with the Duo-graphics cards connector and  
reattach the Duo-graphics cards fixing bracket to the chassis. (For models with  
Duo-graphics cards only)  
6. Reattach the computer cover.  
Replacing the TV-Tuner card  
Note: For this procedure, it helps to lay the computer on a flat, stable  
surface.  
To replace the TV-Tuner card:  
1. Remove the computer cover. Refer to “Removing the computer cover”.  
2. Remove the screw that secures the graphics card latch to the chassis and  
open it.  
3. Remove the screw that secures the TV-tuner card to the chassis.  
3
2
1
58 User Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
4. Remove the TV-Tuner card by pulling it straight out of the connector.  
5. Install the new TV-tuner into the same connector and secure it to chassis with  
the screw.  
6. Turn the graphics card latch to the closed position and secure it with the screw.  
7. Reattach the computer cover.  
User Guide 59  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Replacing the keyboard and mouse  
Note: Your keyboard will be connected to a USB connector at either front  
or the rear of the computer.  
To replace the keyboard:  
1. Remove any media (disks, CDs, or memory cards) from the drives, shut down  
the computer, and turn off all attached devices.  
2. Unplug all power cords from electrical outlets.  
3. Locate the connector for the keyboard. Refer to “Front view of the chassis” and  
“Rear view of the chassis”.  
4. Disconnect the defective keyboard cable from the computer and connect the  
new keyboard cable to the same connector.  
*
The mouse can be replaced using the same method.  
60 User Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Appendix.  
Declaration  
Thank you for using Lenovo products.  
Carefully read all documents shipped with your computer before you install and  
use the product for the first time. Lenovo is not responsible for any loss except  
when caused by installation and operations performed by Lenovo professional  
service personnel. You are responsible if you fail to operate the product according  
to instructions and requirements in the manuals included with your computer, or  
operate the product inappropriately.  
This manual could include technical inaccuracies or typographical errors. Changes  
are made periodically to the information herein; these changes will be incorporated  
in new editions of the publication.To provide better service, Lenovo reserves the  
right to improve and/or modify the products and software programs described in  
the manuals included with your computer, and the content of the manual, at any  
time without additional notice.  
The manuals included with your computer are provided to help you use Lenovos  
products appropriately. For the configuration of the product, refer to the related  
contract (if any) or product packing list, or consult the distributor for the product  
sales.  
The content of the manuals included with your computer is protected by copyright  
laws and rules. None of the manuals included with your computer may be  
reproduced or transcribed by any means or translated into any language without  
prior written permission of Lenovo.  
The software interface and function and hardware configuration described in  
the manuals included with your computer might not match exactly the actual  
configuration of the computer that you purchase.You are welcome to contact us  
about the manuals included with your computer. For the latest information or any  
questions or comments, contact or visit the Lenovo Web site:  
User Guide 61  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Trademarks  
Lenovo and the Lenovo logo, IdeaCentre and IdeaCentre logo are trademarks of  
Lenovo in the United States, other countries, or both.  
Microsoft, Windows, and Windows Vista are trademarks of the Microsoft group of  
companies.  
Intel Inside is a trademark of Intel Corporation in the U.S. and/or other countries.  
AMD, the AMD Arrow logo, ATI, AMD Athlon, AMD LIVE!, AMD Opteron, AMD  
Phenom, AMD Sempron, Catalyst, Cool ‘n’ Quiet, CrossFire, PowerPlay, Radeon,  
and The Ultimate Visual Experience are trademarks of Advanced Micro Devices,  
Inc.  
Other company, product, or service names referred to herein or in other Lenovo  
publications may be trademarks or service marks of others.  
All rights reserved.  
Names or marks of certain companies mentioned in the manuals included with  
your computer or this document do not necessarily indicate that related software  
or hardware is included. The actual configuration of the product depends on the  
packing list description.  
62 User Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Energy Star Statement  
ENERGY STAR® is a joint program of the U.S. Environmental Protection Agency  
and the U.S. Department of Energy aimed at saving money and protecting the  
environment through energy efficient products and practices.  
Lenovo is proud to offer our customers products with an ENERGY STAR compliant  
designation. The following machine types have been designed and tested to  
conform to the ENERGY STAR program requirement for computers at the time  
of manufacture. For more information about ENERGY STAR ratings for Lenovo  
• 4744  
• 4748  
• 4743  
• 10121/90A1  
By using ENERGY STAR compliant products and taking advantage of the power-  
management features of your computer, you reduce the consumption of electricity.  
Reduced electrical consumption contributes to potential financial sayings, a cleaner  
environment, and the reduction of greenhouse gas emissions.  
Lenovo encourages you to make efficient use of energy an integral part of your  
day-to-day operations. To help in this endeavor, Lenovo has preset the following  
power-management features to take effect when your computer has been inactive  
for a specified duration:  
ENERGY STAR power-management features, by operating system.  
Microsoft Windows Vista, Windows 7 and Windows 8  
Power plan: Balanced  
Turn off the display: After 10 minutes  
• Put the computer to sleep: After 25 minutes  
• Advanced power settings:  
-
-
Turn off hard disk drives: After 20 minutes  
Hibernate: Never  
User Guide 63  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
To awaken your computer from a Sleep or System Standby mode, press any  
key on your keyboard. For more information about these settings, refer to your  
Windows Help and Support information system.  
Enabling ErP compliance mode  
You can enable the energy-related products directive (ErP) compliance mode  
through the Power menu in the Setup Utility program. This mode reduces  
electricity consumption when your computer is in standby mode or turned off.  
To enable ErP compliance mode in the Setup Utility program, do the following:  
1. Repeatedly press and release the F1 key when turning on the computer to start  
the Setup Utility program.  
2. From the Setup Utility program main menu, select Power ErP and press  
Enter.  
3. Select Enabled and press Enter.  
4. Press F10 to save changes and exit the Setup Utility program. Press Enter  
when prompted to confirm.  
Note: When ErP compliance mode is enabled, you only can wake up your  
computer by pressing the power switch.  
64 User Guide  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 

KTI Networks Network Cables Ethernet Media Converter User Manual
KWC Indoor Furnishings K10A133 User Manual
Lawn Boy Lawn Mower 10356 10357 10358 User Manual
LG Electronics Dishwasher LDF8812BB User Manual
Lindy Computer Drive 51072 User Manual
LOREX Technology Security Camera CVC6973HRP User Manual
Makita Drill 6015DWE User Manual
Mattel Doll BMC01 User Manual
MB QUART Car Stereo System FX11000 User Manual
Mesa Boogie Musical Instrument MARK II B User Manual