Lenovo Yoga C740 Series User manual

Lenovo Yoga C740 Series
User Guide

Read this first
Before using this documentation and the product it supports, ensure that you read and understand the
follo ing:
• Appendix A “Important safety information” on page 39
• Safety and Warranty Guide
• Setup Guide
First Edition (May 2019)
© Copyright Lenovo 2019.
LIMITED AND RESTRICTED RIGHTS NOTICE: If data or soft are 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
A out this documentation . . . . . . . . iii
Chapter 1. Meet your computer. . . . . 1
Front . . . . . . . . . . . . . . . . . . . . 1
Base . . . . . . . . . . . . . . . . . . . . 2
Left . . . . . . . . . . . . . . . . . . . . 4
Right . . . . . . . . . . . . . . . . . . . . 8
Bottom . . . . . . . . . . . . . . . . . . 10
Features and specifications . . . . . . . . . . 12
Statement on USB transfer rate . . . . . . . 13
Operating environment . . . . . . . . . . 13
Chapter 2. Get started with your
computer . . . . . . . . . . . . . . . . 15
Get started ith Windo s 10 . . . . . . . . . 15
Windo s account . . . . . . . . . . . . 15
Windo s desktop . . . . . . . . . . . . 17
Lenovo Vantage and Lenovo PC Manager . . . . 18
Connect to net orks . . . . . . . . . . . . . 18
Connect to Wi-Fi net orks. . . . . . . . . 18
Interact ith your computer . . . . . . . . . . 19
YOGA modes . . . . . . . . . . . . . . 19
Multi-touch gestures . . . . . . . . . . . 20
Lenovo Digital Pen (Base Pen II). . . . . . . 23
Keyboard hotkeys . . . . . . . . . . . . 24
Chapter 3. Explore your computer . . 27
Manage po er . . . . . . . . . . . . . . . 27
Check the battery status . . . . . . . . . 27
Charge the battery . . . . . . . . . . . . 27
Check the battery temperature . . . . . . . 28
Set po er button behavior. . . . . . . . . 28
Change or create a po er plan . . . . . . . 28
Set performance mode . . . . . . . . . . 28
Change settings in UEFI/BIOS setup utility . . . . 28
What is UEFI/BIOS setup utility . . . . . . . 28
Open the UEFI/BIOS setup utility . . . . . . 29
Change startup sequence . . . . . . . . . 29
Change hotkey mode. . . . . . . . . . . 29
Enable or disable al ays-on . . . . . . . . 29
Set pass ords in UEFI/BIOS setup utility . . . . . 29
Pass ord types . . . . . . . . . . . . . 29
Set administrator pass ord . . . . . . . . 30
Change or remove administrator pass ord . . 30
Set user pass ord . . . . . . . . . . . . 31
Enable po er-on pass ord . . . . . . . . 31
Set hard disk pass ord . . . . . . . . . . 31
Change or remove hard disk pass ord . . . . 31
Reset or restore Windo s . . . . . . . . . . . 32
Windo s 10 recovery options . . . . . . . 32
Windo s System Restore . . . . . . . . . 32
Reset Windo s . . . . . . . . . . . . . 33
Create a recovery drive . . . . . . . . . . 33
Use a recovery drive to restore or reset
Windo s . . . . . . . . . . . . . . . 33
Chapter 4. Help and support . . . . . 35
Frequently asked questions . . . . . . . . . . 35
Self-help resources . . . . . . . . . . . . . 35
Call Lenovo . . . . . . . . . . . . . . . . 37
Before you contact Lenovo . . . . . . . . 37
Lenovo Customer Support Center . . . . . . 37
Purchase additional services. . . . . . . . . . 38
Appendix A. Important safety
information . . . . . . . . . . . . . . . 39
Appendix B. Accessi ility and
ergonomic information . . . . . . . . 51
Appendix C. Compliance
information . . . . . . . . . . . . . . . 55
Appendix D. Notices and
trademarks . . . . . . . . . . . . . . . 69
© Copyright Lenovo 2019 i

ii Lenovo Yoga C740 Series User Guide

A out this documentation
• Illustrations in this documentation might look different from your product.
• Depending on the model, some optional accessories, features, and soft are programs might not be
available on your computer.
• Depending on the version of operating systems, some user interface instructions might not be applicable
to your computer.
• Documentation content is subject to change ithout notice. Lenovo makes constant improvements on the
documentation of your computer, including this User Guide. To get the latest documentation, go to https://
support.lenovo.com.
• Microsoft® makes periodic feature changes to the Windo s® operating system through Windo s Update.
As a result, some information in this documentation might become outdated. Refer to Microsoft resources
for the latest information.
• This documentation applies to the follo ing product models:
Model Name Machine Type
Lenovo Yoga C740-14IML 81TC
Lenovo Yoga C740-15IML 81TD
© Copyright Lenovo 2019 iii

iv Lenovo Yoga C740 Series User Guide

Chapter 1. Meet your computer
Front
1. Microphones Capture or record sound and voice.
2. Camera Take pictures or record videos by clicking Camera from the Start
menu.
Note: If you use other apps that support photographing, video
chatting, and video conference, the camera starts automatically hen
you enable the camera-required feature from the app.
3. Camera cover slider Move the slider to cover or uncover the camera lens.
Note: The camera cover helps you better protect your privacy.
4. Camera light If the light is on, the camera is in use.
5. Multi-touch screen Displays text, graphics, and videos and supports multi-touch
function. See “Multi-touch gestures” on page 20.
© Copyright Lenovo 2019 1

Base
C740-14IML
1. Speakers Produce sound.
2. Keyboard Enter characters and interact ith programs.
Note: The keyboard also includes hotkeys and function keys for
changing settings and performing tasks quickly.
3. Fingerprint reader Enroll and read your fingerprint for user authentication.
4. Touchpad Perform finger touch and all the functions of a traditional mouse.
Note: The touchpad also supports multi-touch function.
2Lenovo Yoga C740 Series User Guide

C740-15IML
1. Keyboard Enter characters and interact ith programs.
Note: The keyboard also includes hotkeys and function keys for
changing settings and performing tasks quickly.
2. Numeric keypad To enable or disable the numeric keypad, press the Num Lock key.
Note: If the Num Lock light is on, the numeric keypad is in use.
3. Fingerprint reader Enroll and read your fingerprint for user authentication.
4. Touchpad Perform finger touch and all the functions of a traditional mouse.
Note: The touchpad also supports multi-touch function.
Chapter 1.Meet your computer 3

Left
C740-14IML
1. Po er connector / USB Type-CTM
connector (USB 3.1 Gen 1) • Connect to ac po er ith the included po er cord and ac po er
adapter.
• When not connected ith the ac po er adapter, it acts as a USB
Type-C connector. For more information about this connector, see
USB Type-C connector (USB 3.1 Gen 1).
Note: An appropriate USB Type-C cable is required for connecting
external devices.
2. Charging status indicator Indicate hether the computer is connected to ac po er.
• Solid hite: connected to ac po er; battery capacity 91% – 100%
• Solid amber: connected to ac po er; battery capacity 1% – 90%
• Off: not connected to ac po er
4Lenovo Yoga C740 Series User Guide

3. USB Type-C connector (USB 3.1 Gen 1) • Charge your computer.
• Charge USB Type-C compatible devices ith the output voltage
and current of 5 V and 3 A.
• Transfer data at USB 3.1 speed, up to 5 Gbps.
• Connect to an external display:
– USB Type-C to VGA: Maximum 1900 x 1200 pixels, 60 Hz
– USB Type-C to DP: Maximum 3840 x 2160 pixels, 60 Hz
– USB Type-C to HDMI: Maximum 3840 x 2160 pixels, 60 Hz
• Supply po er to another computer using P-to-P (Peer to Peer) 2.0
charging function. See “Use P-to-P 2.0 charging function” on page
27.
• Connect to USB Type-C accessories to help expand your
computer functionality. To purchase USB Type-C accessories, go
to https:// .lenovo.com/accessories.
Note: When the battery po er is belo 10%, the connected USB
Type-C accessories might not ork correctly.
4. Audio connector Connect headphones or headsets ith a 3.5-mm (0.14-inch), 4-pole
plug.
Note: This jack does not support standalone external microphones. If
you use headsets, choose one ith a single plug.
Chapter 1.Meet your computer 5

C740-15IML
1. Po er connector / USB Type-C connector
(USB 3.1 Gen 1) • Connect to ac po er ith the included po er cord and ac po er
adapter.
• When not connected ith the ac po er adapter, it acts as a USB
Type-C connector. For more information about this connector, see
USB Type-C connector (USB 3.1 Gen 1).
Note: An appropriate USB Type-C cable is required for connecting
external devices.
2. Charging status indicator Indicate hether the computer is connected to ac po er.
• Solid hite: connected to ac po er; battery capacity 91% – 100%
• Solid amber: connected to ac po er; battery capacity 1% – 90%
• Off: not connected to ac po er
6Lenovo Yoga C740 Series User Guide

3. USB Type-C connector (USB 3.1 Gen 1) • Charge your computer.
• Charge USB Type-C compatible devices ith the output voltage
and current of 5 V and 3 A.
• Transfer data at USB 3.1 speed, up to 5 Gbps.
• Connect to an external display:
– USB Type-C to VGA: Maximum 1900 x 1200 pixels, 60 Hz
– USB Type-C to DP: Maximum 3840 x 2160 pixels, 60 Hz
– USB Type-C to HDMI: Maximum 3840 x 2160 pixels, 60 Hz
• Supply po er to another computer using P-to-P (Peer to Peer) 2.0
charging function. See “Use P-to-P 2.0 charging function” on page
27.
• Connect to USB Type-C accessories to help expand your
computer functionality. To purchase USB Type-C accessories, go
to https:// .lenovo.com/accessories.
Note: When the battery po er is belo 10%, the connected USB
Type-C accessories might not ork correctly.
4. Audio connector Connect headphones or headsets ith a 3.5-mm (0.14-inch), 4-pole
plug.
Note: This jack does not support standalone external microphones. If
you use headsets, choose one ith a single plug.
Chapter 1.Meet your computer 7

Right
C740-14IML
1. Al ays On USB Type-A connector (USB
3.1 Gen 1)
The al ays-on connector can charge external devices hen the
computer is turned off, in sleep or hibernation mode.
Note: The al ays-on function can be turned on or off in one or more
of the follo ing soft are:
Lenovo Vantage
Lenovo PC Manager
UEFI/BIOS Setup utility
2. Po er button ( ith po er indicator) Press to turn on the computer or put the computer to sleep mode.
To turn off the computer, open the Start menu, click Power, and
then select Shut down.
The indicator on the po er button sho s the system status of your
computer.
• Solid hite/Solid amber: the computer is on.
• Off: the computer is off or in hibernation mode.
• Blinking slo ly: the computer is in sleep mode.
8Lenovo Yoga C740 Series User Guide

C740-15IML
1. Al ays On USB Type-A connectors (USB
3.1 Gen 1)
The al ays-on connector can charge external devices hen the
computer is turned off, in sleep or hibernation mode.
Note: The al ays-on function can be turned on or off in one or more
of the follo ing soft are:
Lenovo Vantage
Lenovo PC Manager
UEFI/BIOS Setup utility
2. Po er button ( ith po er indicator) Press to turn on the computer or put the computer to sleep mode.
To turn off the computer, open the Start menu, click Power, and
then select Shut down.
The indicator on the po er button sho s the system status of your
computer.
• Solid hite/Solid amber: the computer is on.
• Off: the computer is off or in hibernation mode.
• Blinking slo ly: the computer is in sleep mode.
Chapter 1.Meet your computer 9

Bottom
C740-14IML
1. Novo button When the computer is off, press this button to start the System
Recovery or the BIOS setup utility, or to enter the boot menu.
2. Ventilation slots Dissipate heat.
10 Lenovo Yoga C740 Series User Guide

C740-15IML
1. Novo button When the computer is off, press this button to start the System
Recovery or the BIOS setup utility, or to enter the boot menu.
2. Ventilation slots Dissipate heat.
3. Speakers Produce sound.
Chapter 1.Meet your computer 11

Features and specifications
Dimensions C740-14IML
• Width: 321.8 mm (12.67 inches)
• Depth: 214.6 mm (8.44 inches)
• Thickness:
– Front: 14.9 mm (0.58 inches)
– Rear: 16.9 mm (0.67 inches)
C740-15IML
• Width: 357.8 mm (14.08 inches)
• Depth: 235.35 mm (9.27 inches)
• Thickness:
– Front: 16.02 mm (0.63 inches)
– Rear: 18.25 mm (0.72 inches)
ac po er adapter 100 V to 240 V ac, 50 Hz to 60 Hz
Battery pack C740-14IML
• 51 Wh
• 4 cells
C740-15IML
• 60.3 Wh
• 3 cells
Microprocessor To vie the microprocessor information of your computer, right-click
the Start button and then select System.
Memory • Type: double data rate 4 (DDR4) SDRAM
• Capacity: 8GB / 12GB/ 16GB
Storage device • Type: solid-state drive
• Form factor: M.2
• Bus: PCI Express
• Capacity: 256 GB / 512 GB / 1TB
Screen C740-14IML
• Display size: 355.6 mm (14 inches)
• Display resolution: 1920 x 1080 pixels
C740-15IML
• Display size: 396.2 mm (15.6 inches)
• Display resolution: 1920 x 1080 pixels HDR
Keyboard • Hotkeys
• Keyboard backlight
• Numeric keypad*
12 Lenovo Yoga C740 Series User Guide

Connectors and slots • Audio connector
C740-14IML
• Al ays On USB Type-A connector (USB 3.1 Gen 1)
• T o USB Type-C connectors (USB 3.1 Gen 1)
C740-15IML
• T o Al ays On USB Type-A connectors (USB 3.1 Gen 1)
• T o USB Type-C connectors (USB 3.1 Gen 1)
Wireless features • Bluetooth
• Wireless LAN
Others • Camera
• Microphones
• Stereo speakers
• Novo button
* for selected models
Note: The battery capacity is the typical or average capacity as measured in a specific test environment.
Capacities measured in other environments may differ but are no lo er than the rated capacity (see product
label).
Statement on USB transfer rate
Depending on many factors such as the processing capability of the host and peripheral devices, file
attributes, and other factors related to system configuration and operating environments, the actual transfer
rate using the various USB connectors on this device ill vary and ill be slo er than the data rate listed
belo for each corresponding device.
USB device Data rate (G it/s)
3.1 Gen 1 5
3.1 Gen 2 10
3.2 20
Operating environment
Maximum altitude (without pressurization)
3048 m (10 000 ft)
Temperature
• At altitudes up to 2438 m (8000 ft)
– Operating: 5°C to 35°C (41°F to 95°F)
– Storage: 5°C to 43°C (41°F to 109°F)
• At altitudes above 2438 m (8000 ft)
– Maximum temperature hen operating under the unpressurized condition: 31.3°C (88°F)
Note: When you charge the battery, its temperature must be no lo er than 10°C (50°F).
Chapter 1.Meet your computer 13

Relative humidity
• Operating: 8% to 95% at et-bulb temperature 23°C (73°F)
• Storage: 5% to 95% at et-bulb temperature 27°C (81°F)
14 Lenovo Yoga C740 Series User Guide