Lenovo 90CS User manual

Machine type: 90BX [E50-00]
90CS [E50-05 ES]
90CT [E50-05 Non-ES]
Lenovo
E50 Series
User Guide
Version 2.0 2014.12
SP40G46561

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 2014. 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 chassis ............................................................................2
Rear view of the chassis.............................................................................3
Basic connector instructions ......................................................................5
Connecting your computer.........................................................................6
5.1 Audio configuration instructions............................................................7
Connecting the power cord........................................................................8
Display connecting instructions when playing Blu-ray Discs........................9
Connecting to the Internet..........................................................................9
Wired keyboard (selected models only) ....................................................10
Using Windows 8.1 ................................................................... 11
Switching between the main Windows 8.1 interfaces ...............................12
The Charms Bar.......................................................................................12
Shutting down the computer....................................................................12
Switching between apps ..........................................................................13
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
Using the Software................................................................... 19
Lenovo Support .......................................................................................20

ii Contents
Troubleshooting and Confirming Setup ................................. 21
Troubleshooting Display Problems............................................................22
Troubleshooting Audio Problems ..............................................................23
Troubleshooting Software Problems .........................................................24
Troubleshooting Problems with Optical Drives and Hard Disks .................24
Special considerations for troubleshooting Windows ................................25
Windows Help and Support .....................................................................26
BIOS setup utility......................................................................................26
Performing Daily Maintenance Tasks ........................................................27
Hardware Replacement Guide ................................................ 29
Locations .................................................................................................33
Replacing hardware .................................................................................36
Appendix. .................................................................................. 47
Declaration...............................................................................................47
Trademarks ..............................................................................................48
Energy Star Statement .............................................................................48
Enabling ErP compliance mode................................................................49
Electronic emissions notices .................................................. 50
Mexico regulatory notice......................................................... 51

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 chassis
Attention: Be careful not to block any air vents on the computer. Blocked
air vents can cause overheating.
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4
5
8
3
6
7
21
Hard disk drive indicator
Power button
Optical Drive (selected models only)
USB 2.0 connectors (2)
Headphone connector
Microphone connector
Memory card reader (selected models only)
Optical drive eject button

3
User Guide
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.)
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6
8
10
11 12
13
14
7
9
3
5
4
Lenovo E50-00
PS/2 keyboard connector
PS/2 mouse connector
USB 3.0 connector
Serial port
VGA monitor connector
USB 2.0 connectors (2)
Ethernet connector
Audio connectors
Optional serial port
Integrated cable lock (Kensington lock) slot & Padlock loop
Power connector
Cable clip
PCI Express X 16 graphics card slot
PCI Express X 1 card slot

4User Guide
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6
8
10 11
12
13
7
9
3
5
4
Lenovo E50-05
65
43
PS/2 keyboard connector
PS/2 mouse connector
Serial port
VGA monitor connector
USB 2.0 connectors (2)
USB 3.0 connectors (2)
Ethernet connector
Audio connectors
Integrated cable lock (Kensington lock) slot & Padlock loop
Power connector
Cable clip
PCI Express X 16 graphics card slot
PCI Express X 1 card slot
Note: If your model has two VGA monitor connectors, be sure to use the
connector on the graphics adapter.
Attention: Do not open the WiFi antenna cover.

5
User Guide
Basic connector instructions
Note: Your computer may not have all of the connectors described in this
section.
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.
Memory card reader Use to view and share digital photos, music, and
videos, stored on a media card.
Power connector Connect to the power cable. The appearance of this
connector may vary.
USB connector Use this connector to attach a device that requires a
USB connection.
Ethernet connector Use this connector to attach the computer to an
Ethernet-type local area network.
VGA connector 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)
Connect to the HDMI connector on your display or TV.
TV-Tuner connector
(optional)
Only supported on systems with an optional TV tuner
card.