Lenovo C340 Series User manual

Version 2.0
Machine type: 10102/4773 [C340]
10103/4751 [C345]
10104/6595 [C440]
10105/6596 [C445]
10110/6267 [C540]
2012.08
Lenovo
C3/C4/C5 Series
User Guide
31502285

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 2012. 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.

i
Contents
Contents
Important Safety Information
Using the Computer Hardware ................................................. 1
Front view of the computer.........................................................................2
Left and right views of the computer ..........................................................3
Rear view of the computer .........................................................................4
Installing the computer stand .....................................................................5
Computer stand .........................................................................................6
Connecting your computer.........................................................................7
Connecting the power cord........................................................................8
Important information about using the computer ........................................9
Wired keyboard (selected models only) ....................................................10
Connecting to the Internet........................................................................10
Using Windows 8 ...................................................................... 11
Switching between the main Windows 8 interfaces ..................................12
The Charms Bar.......................................................................................12
Shutting down the computer....................................................................12
Switching between apps ..........................................................................12
Closing an app.........................................................................................13
Opening other system programs ..............................................................13
Windows Help and Support .....................................................................13
Using the Rescue System........................................................ 15
OneKey Recovery ....................................................................................16
Driver and Application Installation .............................................................17

ii Contents
Troubleshooting and Confirming Setup ................................. 19
Troubleshooting Display Problems............................................................20
Troubleshooting Audio Problems ..............................................................21
Troubleshooting Software Problems .........................................................22
Troubleshooting Problems with Optical Drives and Hard Disks .................23
Special considerations for troubleshooting Windows ................................24
Windows Help and Support .....................................................................24
BIOS setup utility......................................................................................25
Performing Daily Maintenance Tasks ........................................................26
Hardware Replacement Guide ................................................ 27
Overview ..................................................................................................28
Replacing hardware .................................................................................31
Appendix. .................................................................................. 41
Declaration...............................................................................................41
Trademarks ..............................................................................................42
Energy Star Statement .............................................................................43
Enabling ErP compliance mode................................................................44

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
Using the Computer Hardware

2User Guide
Front view of the computer
Attention: Be careful not to block any air vents on the computer. Blocked
air vents can cause overheating.
1 2
37654 8 9
10
Built-in microphone Built-in camera
Hard disk drive indicator Wi-Fi status indicator
Monitor On/Off indicator Menu button
Direction button Direction button
Monitor On/Off button Built-in IR receiver (Only
functional on models equipped
with a IR receiver module)
Attention: The effective range of the Built-in IR Emitter is 10 feet.

3
User Guide
Left and right views of the computer
Attention: Be sure not to block any air vents on the computer. Blocked
air vents may cause thermal problems.
1
2
3
6
5
4
7
8
USB connector Headphone connector
Microphone connector USB connector
Memory card reader Power button
Optical drive eject button Optical drive
Attention: Do not insert 3-inch discs into the optical drive.

4User Guide
Rear view of the computer
1 2 3 76
54
8
9
TV tuner connector (selected
models only, 2 connectors for
Japan)
TV tuner connector (selected
models only, 2 connectors for
Japan)
Power connector Ethernet connector
USB connector USB connector
HDMI-out connector
(selected models only)
Security cable slot
Air vents

5
User Guide
Installing the computer stand
1. Raise the stand holder.
2. Line up the stand base with the mounting holes in the stand holder, then push
the stand base into position.
1
2
3. Pull the hand screw ring up, then secure the stand base to the stand holder
with the hand screw.
3
4. Press down the hand screw ring.