ThinkPad P50 User manual

P50 User Guide

Note: Before using this information and the product it supports, be sure to read and understand the
following:
• Safety, Warranty, and Setup Guide
• “Important safet information” on page v
The latest Safety, Warranty, and Setup Guide and the Regulatory Notice are available on the Lenovo Support
Web site at:
http://www.lenovo.com/support
Sixth Edition (August 2017)
© Copyright Lenovo 2015, 2017
LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant to a General Services
Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No. GS-
35F-05925.

Contents
Important safety information v
Read this first. . . . . . . . . . . . . . . . . v
Important information about using our computer . . v
Conditions that require immediate action . . . . . . vii
Service and upgrades . . . . . . . . . . . . viii
Power cords and power adapters . . . . . . . . . ix
Extension cords and related devices. . . . . . . . ix
Plugs and outlets . . . . . . . . . . . . . . . x
Power suppl statement . . . . . . . . . . . . x
External devices . . . . . . . . . . . . . . . xi
General batter notice . . . . . . . . . . . . . xi
Notice for removable rechargeable batter . . . . . xi
Notice for non-rechargeable coin-cell batter . . . . xii
Heat and product ventilation . . . . . . . . . . xiii
Electrical current safet information . . . . . . . xiv
Liquid cr stal displa (LCD) notice . . . . . . . . xv
Using headphones or earphones . . . . . . . . . xv
Choking hazard notice . . . . . . . . . . . . . xv
Plastic bag notice . . . . . . . . . . . . . . . xv
Glass parts notice . . . . . . . . . . . . . . xvi
Chapter 1 Product overview 1
Computer controls, connectors, and indicators . . . 1
Front view . . . . . . . . . . . . . . . . 1
Left-side view. . . . . . . . . . . . . . . 3
Right-side view . . . . . . . . . . . . . . 4
Rear view . . . . . . . . . . . . . . . . 5
Bottom view . . . . . . . . . . . . . . . 7
Status indicators . . . . . . . . . . . . . 7
Important product information labels . . . . . . . 9
Machine t pe and model information. . . . . . 9
FCC ID and IC Certification information . . . . 10
Labels for the Windows operating s stems . . 11
Features. . . . . . . . . . . . . . . . . . 12
Specifications . . . . . . . . . . . . . . . 13
Operating environment . . . . . . . . . . . . 14
Lenovo programs . . . . . . . . . . . . . . 14
Accessing Lenovo programs . . . . . . . . 14
An introduction to Lenovo programs . . . . . 15
Chapter 2 Using your computer 19
Registering our computer . . . . . . . . . . 19
Frequentl asked questions . . . . . . . . . . 19
Getting help about the Windows operating
s stem . . . . . . . . . . . . . . . . . . 20
Using the multi-touch screen . . . . . . . . . 20
Special ke s . . . . . . . . . . . . . . . . 22
Using the ThinkPad pointing device . . . . . . . 24
Using the TrackPoint pointing device. . . . . 24
Using the TrackPoint pointing device. . . . . 25
Using the trackpad with buttons . . . . . . 26
Using the trackpad touch gestures . . . . . 27
Customizing the ThinkPad pointing device . . 27
Replacing the cap on the pointing stick . . . . 28
Power management . . . . . . . . . . . . . 28
Using the ac power adapter . . . . . . . . 28
Using the batter . . . . . . . . . . . . 29
Managing the batter power . . . . . . . . 30
Power-saving modes . . . . . . . . . . . 30
Connecting to the network . . . . . . . . . . 31
Ethernet connections . . . . . . . . . . . 31
Wireless connections . . . . . . . . . . . 31
Using an external displa . . . . . . . . . . . 35
Connecting an external displa . . . . . . . 35
Choosing a displa mode . . . . . . . . . 36
Changing displa settings . . . . . . . . . 36
Using the color sensor . . . . . . . . . . . . 36
Using the NVIDIA Optimus Graphics feature. . . . 37
Using audio features . . . . . . . . . . . . . 37
Using the camera . . . . . . . . . . . . . . 38
Using an ExpressCard, a media card, or a smart
card . . . . . . . . . . . . . . . . . . . 38
Traveling with our computer . . . . . . . . . 40
Chapter 3 Enhancing your
computer 43
Finding ThinkPad options . . . . . . . . . . . 43
ThinkPad Pen Pro . . . . . . . . . . . . . . 43
ThinkPad Workstation Dock . . . . . . . . . . 45
ThinkPad Workstation Dock overview . . . . 45
Attaching the docking station to our
computer . . . . . . . . . . . . . . . 46
Detaching the docking station from our
computer . . . . . . . . . . . . . . . 47
Guideline on connecting multiple external
displa s to the docking station . . . . . . . 49
Chapter 4 Accessibility, ergonomic,
and maintenance information 51
Accessibilit information . . . . . . . . . . . 51
Ergonomic information . . . . . . . . . . . . 53
Cleaning and maintenance . . . . . . . . . . 54
Chapter 5 Security 57
Using passwords . . . . . . . . . . . . . . 57
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Passwords introduction . . . . . . . . . . 57
Setting, changing, or removing a password . . 58
Hard disk securit . . . . . . . . . . . . . . 59
Setting the securit chip . . . . . . . . . . . 59
Using the fingerprint reader . . . . . . . . . . 60
Deleting data from our storage drive . . . . . . 63
Using firewalls . . . . . . . . . . . . . . . 63
Protecting data against viruses . . . . . . . . . 63
Chapter 6 Advanced
configuration 65
Installing a new operating s stem . . . . . . . . 65
Installing the Windows 7 operating s stem . . 65
Installing the Windows 10 operating s stem . . 66
Installing device drivers . . . . . . . . . . . . 67
Using the ThinkPad Setup program . . . . . . . 68
Configuring ThinkPad Setup . . . . . . . . 68
Changing the startup sequence . . . . . . . 69
Updating the UEFI BIOS. . . . . . . . . . 69
BIOS menu. . . . . . . . . . . . . . . 69
Using s stem management . . . . . . . . . . 84
Setting management features . . . . . . . 85
Chapter 7 Troubleshooting
computer problems 87
General tips for preventing problems . . . . . . 87
Diagnosing problems . . . . . . . . . . . . 87
Troubleshooting . . . . . . . . . . . . . . 88
Computer stops responding . . . . . . . . 88
Spills on the ke board . . . . . . . . . . 89
Error messages . . . . . . . . . . . . . 89
Beep errors. . . . . . . . . . . . . . . 91
Memor module problems . . . . . . . . . 91
Networking problems. . . . . . . . . . . 92
Problems with the ke board and other
pointing devices . . . . . . . . . . . . . 94
Problems with the displa and multimedia
devices . . . . . . . . . . . . . . . . 94
Fingerprint reader problems . . . . . . . . 100
Batter and power problems . . . . . . . . 100
Problems with drives and other storage
devices . . . . . . . . . . . . . . . . 103
A software problem . . . . . . . . . . . 103
Problems with ports and connectors . . . . . 104
Chapter 8 Recovery information 105
Recover information for the Windows 7 operating
s stem . . . . . . . . . . . . . . . . . . 105
Creating and using recover media . . . . . 105
Performing backup and recover
operations . . . . . . . . . . . . . . . 106
Using the Rescue and Recover
workspace . . . . . . . . . . . . . . . 107
Creating and using a rescue medium. . . . . 108
Reinstalling preinstalled programs and device
drivers . . . . . . . . . . . . . . . . 109
Solving recover problems. . . . . . . . . 109
Recover information for the Windows 10
operating s stem . . . . . . . . . . . . . . 110
Resetting our computer . . . . . . . . . 110
Using advanced startup options . . . . . . 110
Recovering our operating s stem if Windows
10 fails to start . . . . . . . . . . . . . 110
Creating and using a recover USB drive . . . 111
Chapter 9 Replacing devices 113
Static electricit prevention . . . . . . . . . . 113
Replacing the removable batter . . . . . . . . 113
Installing or replacing the micro SIM card . . . . . 115
Replacing the bottom cover . . . . . . . . . . 116
Replacing the hard disk drive . . . . . . . . . 117
Replacing the M.2 solid-state drive . . . . . . . 120
Replacing the memor module under the bottom
cover . . . . . . . . . . . . . . . . . . . 123
Replacing the coin-cell batter . . . . . . . . . 124
Replacing the ke board. . . . . . . . . . . . 126
Replacing an M.2 wireless-WAN card . . . . . . 129
Replacing the memor module under the
ke board . . . . . . . . . . . . . . . . . 132
Chapter 10 Getting support 135
Before ou contact Lenovo . . . . . . . . . . 135
Getting help and service . . . . . . . . . . . 135
Lenovo Support Web site . . . . . . . . . 136
Calling Lenovo . . . . . . . . . . . . . 136
Purchasing additional services . . . . . . . . . 137
Appendix A Supplemental
information about the Ubuntu operating
system 139
Appendix B Regulatory
information 141
Certification related information . . . . . . . . 141
Wireless-related information . . . . . . . . . . 141
Wireless interoperabilit . . . . . . . . . . 141
Usage environment and our health . . . . . 142
Locating the UltraConnect wireless
antennas. . . . . . . . . . . . . . . . 142
Wireless-radio compliance information . . . . 143
Locating wireless regulator notices . . . . . 143
TCO certification . . . . . . . . . . . . . . 143
Export classification notice . . . . . . . . . . 144
Electronic emission notices . . . . . . . . . . 144
ii P50 User Guide

Federal Communications Commission
Declaration of Conformit . . . . . . . . . 144
Industr Canada Class B emission
compliance statement . . . . . . . . . . 144
European Union conformit . . . . . . . . 144
German Class B compliance statement. . . . 145
Japan VCCI Class B compliance
statement . . . . . . . . . . . . . . . 146
Japan compliance statement for products
which connect to the power mains with rated
current less than or equal to 20 A per
phase . . . . . . . . . . . . . . . . . 146
Japan notice for ac power cord . . . . . . . 146
Lenovo product service information for
Taiwan . . . . . . . . . . . . . . . . 146
Eurasian compliance mark . . . . . . . . . . 146
Brazil audio notice . . . . . . . . . . . . . . 146
Appendix C WEEE and recycling
statements 147
General rec cling information . . . . . . . . . 147
Important WEEE information. . . . . . . . . . 147
Japan rec cling statements . . . . . . . . . . 148
Rec cling information for Brazil. . . . . . . . . 148
Batter rec cling information for the European
Union . . . . . . . . . . . . . . . . . . . 149
Batter rec cling information for Taiwan . . . . . 150
Batter rec cling information for the United States
and Canada . . . . . . . . . . . . . . . . 150
Rec cling information for China . . . . . . . . 150
Appendix D Restriction of
Hazardous Substances (RoHS)
Directive 151
Appendix E ENERGY STAR model
information 155
Appendix F Notices 157
Appendix G Trademarks 159
© Cop right Lenovo 2015, 2017 iii

iv P50 User Guide

Important safety information
Note: Read the important safet information first.
Read this first
This information can help ou safel use our notebook computer. Follow and retain all information included
with our computer. The information in this document does not alter the terms of our purchase agreement
or the Limited Warrant . For more information, see "Warrant Information" in the Safety, Warranty, and Setup
Guide that comes with our computer.
Customer safet is important. Our products are developed to be safe and effective. However, personal
computers are electronic devices. Power cords, power adapters, and other features can create potential
safet risks that can result in ph sical injur or propert damage, especiall if misused. To reduce these risks,
follow the instructions included with our product, observe all warnings on the product and in the operating
instructions, and review the information included in this document carefull . B carefull following the
information contained in this document and provided with our product, ou can help protect ourself from
hazards and create a safer computer work environment.
Note: This information includes references to power adapters and batteries. In addition to notebook
computers, some products (such as speakers and monitors) ship with external power adapters. If ou have
such a product, this information applies to our product. In addition, computer products contain a coin-sized
internal batter that provides power to the s stem clock even when the computer is unplugged, so the
batter safet information applies to all computer products.
Important information about using your computer
Ensure that ou follow the important tips given here to get the most use and enjo ment out of our computer.
Failure to do so might lead to discomfort or injur , or cause the computer to fail.
Protect yourself from the heat that your computer generates
When our computer is turned on or the batter is charging, the base, the palm
rest, and some other parts ma become hot. The temperature the reach
depends on the amount of s stem activit and the level of charge in the
batter .
Extended contact with our bod , even through clothing, could cause
discomfort or even a skin burn.
• Avoid keeping our hands, our lap, or an other part of our bod in
contact with a hot section of the computer for an extended time.
• Periodicall take hands from using the ke board b lifting our hands from
the palm rest.
© Cop right Lenovo 2015, 2017 v

Protect yourself from the heat generated by the ac power adapter
When the ac power adapter is connected to an electrical outlet and our
computer, it generates heat.
Extended contact with our bod , even through clothing, ma cause a skin
burn.
• Do not place the ac power adapter in contact with an part of our bod
while it is in use.
• Never use it to warm our bod .
Prevent your computer from getting wet
To avoid spills and the danger of electrical shock, keep liquids awa from our
computer.
Protect the cables from being damaged
Appl ing strong force to cables ma damage or break them.
Route communication lines, or the cables of an ac power adapter, a mouse, a
ke board, a printer, or an other electronic device, so that the cannot be
walked on, tripped over, pinched b our computer or other objects, or in an
wa subject to treatment that could interfere with the operation of our
computer.
Protect your computer and data when moving it
Before moving a computer equipped with a hard disk drive, do one of the
following:
• Turn it off.
• Put it in sleep mode.
• Put it in hibernation mode.
This helps to prevent damage to the computer, and possible loss of data.
vi P50 User Guide

Handle your computer gently
Do not drop, bump, scratch, twist, hit, vibrate, push, or place heav objects on
our computer, displa , or external devices.
Carry your computer carefully
• Use a qualit carr ing case that provides adequate cushioning and protection.
• Do not pack our computer in a tightl packed suitcase or bag.
• Before putting our computer in a carr ing case, make sure that it is off, in sleep
mode, or in hibernation mode. Do not put a computer in a carr ing case while it is
turned on.
Conditions that require immediate action
Products can become damaged due to misuse or neglect Some product damage is serious enough
that the product should not be used again until it has been inspected and, if necessary, repaired by an
authorized servicer
As with any electronic device, pay close attention to the product when it is turned on On very rare
occasions, you might notice an odor or see a puff of smoke or sparks vent from your product Or you
might hear sounds like popping, cracking, or hissing These conditions might merely mean that an
internal electronic component has failed in a safe and controlled manner Or, they might indicate a
potential safety issue However, do not take risks or attempt to diagnose the situation yourself
Contact the Customer Support Center for further guidance For a list of Service and Support phone
numbers, see the following Web site:
http://www lenovo com/support/phone
Frequently inspect your computer and its components for damage or wear or signs of danger If you
have any question about the condition of a component, do not use the product Contact the Customer
Support Center or the product manufacturer for instructions on how to inspect the product and have it
repaired, if necessary
In the unlikely event that you notice any of the following conditions, or if you have any safety concerns
with your product, stop using the product and unplug it from the power source and
telecommunication lines until you can speak to the Customer Support Center for further guidance
© Cop right Lenovo 2015, 2017 vii

• Power cords, plugs, power adapters, extension cords, surge protectors, or power supplies that are
cracked, broken, or damaged.
• Signs of overheating, smoke, sparks, or fire.
• Damage to a batter (such as cracks, dents, or creases), discharge from a batter , or a buildup of foreign
substances on the batter .
• A cracking, hissing, or popping sound, or strong odor that comes from the product.
• Signs that liquid has been spilled or an object has fallen onto the computer product, the power cord, or
power adapter.
• The computer product, power cord, or power adapter has been exposed to water.
• The product has been dropped or damaged in an wa .
• The product does not operate normall when ou follow the operating instructions.
Note: If ou notice these conditions with a product (such as an extension cord) that is not manufactured for
or b Lenovo®, stop using that product until ou can contact the product manufacturer for further
instructions, or until ou get a suitable replacement.
Service and upgrades
Do not attempt to service a product ourself unless instructed to do so b the Customer Support Center or
our documentation. Onl use a Service Provider who is approved to repair our particular product.
Note: Some computer parts can be upgraded or replaced b the customer. Upgrades t picall are referred
to as options. Replacement parts approved for customer installation are referred to as Customer
Replaceable Units, or CRUs. Lenovo provides documentation with instructions when it is appropriate for
customers to install options or replace CRUs. You must closel follow all instructions when installing or
replacing parts. The Off state of a power indicator does not necessaril mean that voltage levels inside a
product are zero. Before ou remove the covers from a product equipped with a power cord, alwa s make
sure that the power is turned off and that the product is unplugged from an power source. If ou have an
questions or concerns, contact the Customer Support Center.
Although there are no moving parts in our computer after the power cord has been disconnected, the
following warnings are required for our safet .
CAUTION:
Hazardous moving parts Keep fingers and other body parts away
CAUTION:
Before you open the computer cover, turn off the computer and wait several minutes until the
computer is cool
viii P50 User Guide

Power cords and power adapters
DANGER
Use only the power cords and power adapters supplied by the product manufacturer
The power cords shall be safety approved For Germany, it shall be H03VV-F, 3G, 0 75 mm2, or
better For other countries, the suitable types shall be used accordingly
Never wrap a power cord around a power adapter or other object Doing so can stress the cord in
ways that can cause the cord to fray, crack, or crimp This can present a safety hazard
Always route power cords so that they will not be walked on, tripped over, or pinched by objects
Protect power cords and power adapters from liquids For instance, do not leave your power cord
or power adapter near sinks, tubs, toilets, or on floors that are cleaned with liquid cleansers Liquids
can cause a short circuit, particularly if the power cord or power adapter has been stressed by
misuse Liquids also can cause gradual corrosion of power cord terminals and/or the connector
terminals on a power adapter, which can eventually result in overheating
Ensure that all power cord connectors are securely and completely plugged into receptacles
Do not use any power adapter that shows corrosion at the ac input pins or shows signs of
overheating (such as deformed plastic) at the ac input pins or anywhere on the power adapter
Do not use any power cords where the electrical contacts on either end show signs of corrosion or
overheating or where the power cord appears to have been damaged in any way
To prevent possible overheating, do not cover the power adapter with clothing or other objects
when the power adapter is plugged into an electrical outlet
Extension cords and related devices
Ensure that extension cords, surge protectors, uninterruptible power supplies, and power strips that ou use
are rated to handle the electrical requirements of the product. Never overload these devices. If power strips
are used, the load should not exceed the power strip input rating. Consult an electrician for more information
if ou have questions about power loads, power requirements, and input ratings.
© Cop right Lenovo 2015, 2017 ix

Plugs and outlets
DANGER
If a receptacle (power outlet) that you intend to use with your computer equipment appears to be
damaged or corroded, do not use the outlet until it is replaced by a qualified electrician
Do not bend or modify the plug If the plug is damaged, contact the manufacturer to obtain a
replacement
Do not share an electrical outlet with other home or commercial appliances that draw large
amounts of electricity; otherwise, unstable voltage might damage your computer, data, or attached
devices
Some products are equipped with a three-pronged plug This plug fits only into a grounded
electrical outlet This is a safety feature Do not defeat this safety feature by trying to insert it into a
non-grounded outlet If you cannot insert the plug into the outlet, contact an electrician for an
approved outlet adapter or to replace the outlet with one that enables this safety feature Never
overload an electrical outlet The overall system load should not exceed 80 percent of the branch
circuit rating Consult an electrician for more information if you have questions about power loads
and branch circuit ratings
Be sure that the power outlet you are using is properly wired, easily accessible, and located close to
the equipment Do not fully extend power cords in a way that will stress the cords
Be sure that the power outlet provides the correct voltage and current for the product you are
installing
Carefully connect and disconnect the equipment from the electrical outlet
Power supply statement
DANGER
Never remove the cover on a power supply or any part that has the following label attached
Hazardous voltage, current, and energy levels are present inside any component that has this label
attached There are no serviceable parts inside these components If you suspect a problem with
one of these parts, contact a service technician
xP50 User Guide

External devices
CAUTION:
Do not connect or disconnect any external device cables other than Universal Serial Bus (USB) and
1394 cables while the computer power is on; otherwise, you might damage your computer To avoid
possible damage to attached devices, wait at least five seconds after the computer is shut down to
disconnect external devices
General battery notice
DANGER
Batteries supplied by Lenovo for use with your product have been tested for compatibility and
should only be replaced with approved parts A battery other than the one specified by Lenovo, or a
disassembled or modified battery is not covered by the warranty
Battery abuse or mishandling can cause overheat, liquid leakage, or an explosion To avoid possible
injury, do the following:
• Do not open, dissemble, or service any battery
• Do not crush or puncture the battery
• Do not short-circuit the battery, or expose it to water or other liquids
• Keep the battery away from children
• Keep the battery away from fire
Stop using the battery if it is damaged, or if you notice any discharge or the buildup of foreign
materials on the battery leads
Store the rechargeable batteries or products containing the rechargeable batteries at room
temperature, charged to approximately 30 to 50% of capacity We recommend that the batteries be
charged about once per year to prevent overdischarge
Do not put the battery in trash that is disposed of in landfills When disposing of the battery, comply
with local ordinances or regulations
Notice for removable rechargeable battery
DANGER
Only recharge the battery strictly according to instructions included in the product documentation
If the battery is incorrectly replaced, there is danger of an explosion The battery contains a small
amount of harmful substances
© Cop right Lenovo 2015, 2017 xi

Notice for non-rechargeable coin-cell battery
DANGER
If the coin-cell battery is incorrectly replaced, there is danger of an explosion The battery contains
a small amount of harmful substance
Do not heat to more than 100°C (212°F)
The following statement applies to users in the state of California, U S A
California Perchlorate Information:
Products containing manganese dioxide lithium coin-cell batteries may contain perchlorate
Perchlorate Material - special handling may apply, See http://www dtsc ca gov/hazardouswaste/
perchlorate
xii P50 User Guide

Heat and product ventilation
DANGER
Computers, ac power adapters, and many accessories can generate heat when turned on and when
batteries are charging Notebook computers can generate a significant amount of heat due to their
compact size Always follow these basic precautions:
• When your computer is turned on or the battery is charging, the base, the palm rest, and some
other parts may become hot Avoid keeping your hands, your lap, or any other part of your body
in contact with a hot section of the computer for any extended length of time When you use the
keyboard, avoid keeping your palms on the palm rest for a prolonged period of time Your
computer generates some heat during normal operation The amount of heat depends on the
amount of system activity and the battery charge level Extended contact with your body, even
through clothing, could cause discomfort or even a skin burn Periodically take breaks from using
the keyboard by lifting your hands from the palm rest; and be careful not to use the keyboard for
any extended length of time
• Do not operate your computer or charge the battery near flammable materials or in explosive
environments
• Ventilation slots, fans and/or heat sinks are provided with the product for safety, comfort, and
reliable operation These features might inadvertently become blocked by placing the product on
a bed, sofa, carpet, or other flexible surface Never block, cover, or disable these features
• When the ac power adapter is connected to an electrical outlet and your computer, it generates
heat Do not place the adapter in contact with any part of your body while using it Never use the
ac power adapter to warm your body Extended contact with your body, even through clothing,
may cause a skin burn
For your safety, always follow these basic precautions with your computer:
• Keep the cover closed whenever the computer is plugged in
• Regularly inspect the outside of the computer for dust accumulation
• Remove dust from vents and any perforations in the bezel More frequent cleanings might be
required for computers in dusty or high-traffic areas
• Do not restrict or block any ventilation openings
• Do not operate your computer inside furniture, as this might increase the risk of overheating
• Airflow temperatures into the computer should not exceed 35°C (95°F)
© Cop right Lenovo 2015, 2017 xiii

Electrical current safety information
DANGER
Electric current from power, telephone, and communication cables is hazardous
To avoid a shock hazard:
• Do not use your computer during a lightning storm
• Do not connect or disconnect any cables or perform installation, maintenance, or reconfiguration
of this product during an electrical storm
• Connect all power cords to a properly wired and grounded electrical outlet
• Connect to properly wired outlets any equipment that will be attached to this product
• Whenever possible, use one hand only to connect or disconnect signal cables
• Never turn on any equipment when there is evidence of fire, water, or structural damage
• Disconnect the attached power cords, battery, and all the cables before you open the device
covers, unless instructed otherwise in the installation and configuration procedures
• Do not use your computer until all internal parts enclosures are fastened into place Never use
the computer when internal parts and circuits are exposed
DANGER
Connect and disconnect cables as described in the following procedures when installing, moving,
or opening covers on this product or attached devices
To connect:
1 Turn everything OFF
2 First, attach all cables to devices
3 Attach signal cables to connectors
4 Attach power cords to outlets
5 Turn devices ON
To disconnect:
1 Turn everything OFF
2 First, remove power cords from outlets
3 Remove signal cables from connectors
4 Remove all cables from devices
The power cord must be disconnected from the wall outlet or receptacle before installing all other electrical
cables connected to the computer.
The power cord ma be reconnected to the wall outlet or receptacle onl after all other electrical cables have
been connected to the computer.
DANGER
During electrical storms, do not perform any replacement and do not connect the telephone cable
to or disconnect it from the telephone outlet on the wall
xiv P50 User Guide

Liquid crystal display (LCD) notice
CAUTION:
The liquid crystal display (LCD) is made of glass, and rough handling or dropping the computer can
cause the LCD to break If the LCD breaks and the internal fluid gets into your eyes or on your hands,
immediately wash the affected areas with water for at least 15 minutes; if any symptoms are present
after washing, get medical care
Note: For products with mercur -containing fluorescent lamps (for example, non-LED), the fluorescent lamp
in the liquid cr stal displa (LCD) contains mercur ; dispose of according to local, state, or federal laws.
Using headphones or earphones
CAUTION:
Excessive sound pressure from earphones and headphones can cause hearing loss Adjustment of
the equalizer to maximum increases the earphone and headphone output voltage and the sound
pressure level Therefore, to protect your hearing, adjust the equalizer to an appropriate level
Excessive use of headphones or earphones for a long period of time at high volume can be dangerous if the
output of the headphone or earphone connectors do not compl with specifications of EN 50332-2. The
headphone output connector of our computer complies with EN 50332-2 Sub clause 7. This specification
limits the computer’s maximum wide band true RMS output voltage to 150 mV. To help protect against
hearing loss, ensure that the headphones or earphones ou use also compl with EN 50332-2 (Clause 7
limits) for a wide band characteristic voltage of 75 mV. Using headphones that do not compl with EN 50332-
2 can be dangerous due to excessive sound pressure levels.
If our Lenovo computer came with headphones or earphones in the package, as a set, the combination of
the headphones or earphones and the computer alread complies with the specifications of EN 50332-1. If
different headphones or earphones are used, ensure that the compl with EN 50332-1 (Clause 6.5
Limitation Values). Using headphones that do not compl with EN 50332-1 can be dangerous due to
excessive sound pressure levels.
Choking hazard notice
CHOKING HAZARD – Product contains small parts.
Keep awa from children under three ears.
Plastic bag notice
DANGER
Plastic bags can be dangerous Keep plastic bags away from babies and children to avoid danger of
suffocation
© Cop right Lenovo 2015, 2017 xv

Glass parts notice
CAUTION:
Some parts of your product may be made of glass This glass could break if the product is dropped on
a hard surface or receives a substantial impact If glass breaks, do not touch or attempt to remove it
Stop using your product until the glass is replaced by trained service personnel
xvi P50 User Guide

Chapter 1 Product overview
This chapter provides basic information to help ou get familiar with our computer.
Computer controls, connectors, and indicators
This section introduces hardware features of the computer.
Front view
Figure 1. Front view
1 Camera (available on some models) 2 Microphones (available on some models)
3 Screen (multi-touch on some models) 4 Power button
5 Numeric ke pad 6 Fingerprint reader
7 TrackPoint® pointing device 8 Trackpad with buttons
9 Color sensor (available on some models) 10 Speakers
1 Camera (available on some models)
Use the camera to take pictures or hold a video conference. For more information, see “Using the camera”
on page 38.
2 Microphones (available on some models)
The microphones capture sound and voice when used with a program capable of handling audio.
3 Screen (multi-touch screen on some models)
The multi-touch screen enables ou to use our computer with simple touch gestures. For more information,
see “Using the multi-touch screen” on page 20.
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4 Power button
Press the power button to turn on the computer or put the computer into sleep mode. For information about
how to turn off the computer, see “Frequentl asked questions” on page 19.
If our computer is completel unresponsive, ou can turn off the computer b pressing and holding the
power button for four or more seconds. If the computer cannot be turned off, see “Computer stops
responding” on page 88 for more information.
You also can define what the power button does. For example, b pressing the power button, ou can turn
off the computer or put the computer into sleep or hibernation mode. To change what the power button
does, do the following:
1. Go to Control Panel, and then change the view of Control Panel from Categor to Large icons or Small
icons.
2. Click Power Options ➙ Choose what the power buttons do.
3. Follow the instructions on the screen.
5 Numeric keypad
Use the numeric ke pad to quickl input numbers.
6 Fingerprint reader
Fingerprint authentication technolog provides simple and secure user access b associating our fingerprint
with passwords. For more information, see “Using the fingerprint reader” on page 60.
ThinkPad® pointing device
7 TrackPoint pointing device
8 Trackpad with buttons
The ke board contains the Lenovo-unique ThinkPad pointing device. For information about using the
ThinkPad pointing device, see “Using the ThinkPad pointing device” on page 24.
9 Color sensor (available on some models)
The color sensor enables ou to measure and adjust the color accurac of our displa s. For more
information, see “Using the color sensor” on page 36.
10 Speakers
Your computer is equipped with a pair of stereo speakers.
2P50 User Guide