Lenovo Thunderbolt 3 User manual

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Lenovo Thunderbolt 3 Graphics Dock
User Guide

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Note: Before using this product, ensure that you read and understand the safety information in the warranty poster that comes with
the product.
First Edition (July 2017)
© Copyright Lenovo 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.

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Table of Contents
Chapter 1. About the dock ............................................................................................................4
1.1 Features .................................................................................................................................4
1.2 Package..................................................................................................................................4
1.3 Dock controls, connectors, and indicators ..............................................................................4
Chapter 2. Setting up the dock.....................................................................................................6
2.1 Connecting the dock to your computer...................................................................................6
2.2 Removing the dock from your computer.................................................................................6
2.3 Installing the device driver on Windows operating systems....................................................7
2.4 Uninstalling the device drivers from Windows operating systems...........................................7
Chapter 3. Using the dock.............................................................................................................8
3.1 Using the headset and microphone combo connector............................................................8
3.2 Using the video output connectors..........................................................................................8
Chapter 4. Troubleshooting........................................................................................................10
4.1 General.................................................................................................................................10
4.2 Video output..........................................................................................................................10
4.3 Audio ....................................................................................................................................11
Trademarks...................................................................................................................................11

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Chapter 1. About the dock
This chapter contains product information about the Lenovo®ThunderboltTM 3 Graphics Dock (hereafter called dock).
1.1 Features
The dock is a portable expansion module. It can greatly improve your computer graphics performance with an NVIDIA®GeForce®
GTX 1050 (4 GB GDDR5) Graphics Card installed in the dock. It can also easily connect your computer to the Ethernet and
multiple devices, such as a microphone, a monitor, and a Universal Serial Bus (USB) device.
After setting up the dock, configure the dock on your computer. Connect the desired devices to the dock, and then you can use the
multiple devices each time you connect your computer to the dock. The dock can also supply power to your computer when
connected to the computer.
1.2 Package
Your option package includes the following:
Lenovo Thunderbolt 3 Graphics Dock
ac power adapter and power cord
Thunderbolt 3 cable
Documentation
Contact your place of purchase if any item is missing or damaged. Ensure that you retain your proof of purchase and packing
material. They might be required to receive warranty service.
1.3 Dock controls, connectors, and indicators
The following illustration helps you locate and identify the controls, connectors, and indicators on your dock.
Headset and microphone combo connector
USB 2.0 connector
USB 3.0 connector
Always On USB 3.0 connector
Status indicator
Thunderbolt 3 connector
Power connector
DisplayPort® connector
DisplayPort connector
HDMITM connector
Ethernet connector
Security-lock slot
Vents

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Always On USB 3.0 connector
Charge some mobile digital devices when the dock is connected to the power supply. The Always On USB 3.0 connector can
supply power up to 2.4 A during the charging process.
Note:
For the wireless keyboard and mouse, it is recommended that you connect the USB receiver of the wireless keyboard or mouse to
the USB 2.0 connector of the dock.
Status indicator
The indicator shows the dock status and computer status:
–Red: The dock is on and ready to connect to the computer; or the dock is on and the computer is in hibernation mode or off.
–Amber: The dock is on and connected to an active computer. Install the dock graphics drive to enable the dock graphics card.
–Green: The dock is on and connected to an active computer with the dock graphics card enabled.
Thunderbolt 3 connector
Connect the dock to your Lenovo computer with a Thunderbolt 3 cable.
DisplayPort connectors
Connect a high-performance monitor, a direct-drive monitor, or other devices that use a DisplayPort connector.
HDMI connector
The High-Definition Multimedia InterfaceTM (HDMI) connector is a digital audio and video interface. It enables you to connect your
computer to a compatible digital audio device or video monitor, such as a DVD player or an HDTV.
Security-lock slot
To protect your dock from theft, lock your dock to a desk, table, or other non-permanent fixture. Use a security cable lock that fits
this security-lock slot.
Vents
Ensure that the vents are not blocked to avoid overheat.

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Chapter 2. Setting up the dock
This chapter provides information to help you set up the dock.
2.1 Connecting the dock to your computer
To connect the dock to your computer, do the following:
Notes:
•Ensure that you use the Thunderbolt 3 cable and power adapter that come with your dock.
•It is recommended that you put the dock flat on the table. Do not put it upside down, or stand on the side of the dock.
1. Connect the ac power adapter to the power cord .
2. Connect the ac power adapter to the power connector of the dock .
3. Connect the power cord to an electrical outlet .
4. Connect one end of the Thunderbolt 3 cable to the dock .
5. Connect the other end of the Thunderbolt 3 cable to the computer .
Note: You might connect the dock to one of the following Thunderbolt 3 connectors depending on your computer design:
: The dock works and supplies power to the computer when it is connected to the computer.
: The dock works but does not supply power to the computer when it is connected to the computer.
: All dock connectors and graphics card are disabled. The dock works as a power adapter and only supplies power to the
computer when it is connected to the computer.
2.2 Removing the dock from your computer
Note: Removing the dock when some programs are running with dock graphics card might cause the program data loss or the
program to stop response.
To remove the dock from your computer, do the following:
1. Check and close the programs that are using the graphics card.
a. From the desktop, move the pointer to the Windows notification area, and then click Show hidden icons.

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b. Find and click the icon for NVIDIA GeForce GTX1050 . A window is displayed with a list of the programs that are
using the graphics card.
c. Save and close the programs that are using the graphics card.
2. Safely disconnect the Thunderbolt 3 cable of the dock from your computer.
2.3 Installing the device driver on Windows operating systems
After setting up the dock, download the latest dock device drivers from the Lenovo Web site
http://www.lenovo.com/support/docks. Click Lenovo Thunderbolt 3 Graphics Dock, download the installation file, and then follow
the instructions on the screen to complete the installation.
2.4 Uninstalling the device drivers from Windows operating systems
To uninstall the device driver, do the following:
1. From the desktop, move the pointer to the bottom-left corner of the screen, and then search Control Panel in the search box.
2. Click Control Panel, and then view the Control Panel by Category.
3. Click Uninstall a program ➙Lenovo Thunderbolt 3 Graphics Dock GPU driver, and then right-click to select Uninstall.
4. Click Lenovo Thunderbolt 3 Graphics Dock Ethernet driver, and then right-click to select Uninstall.
5. Click Lenovo Thunderbolt 3 Graphics Dock Audio driver, and then right-click to select Uninstall.
6. Follow the instructions on the screen to uninstall the device drivers.
7. If necessary, restart your computer.

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Chapter 3. Using the dock
This chapter provides information to help you use the dock.
Note: Before using the dock, ensure that you are using a Microsoft®Windows®10 computer.
3.1 Using the headset and microphone combo connector
To manually enable the headset and microphone combo connector on the dock, do the following:
1. Right-click the speaker icon in the Windows notification area. A pop-up menu opens.
2. Click Playback devices to select a USB audio line-out device, and then click the Recording tab to select a USB audio line-in
device.
3. Click OK.
Note: To apply the new settings, restart the applications that are using the audio devices.
3.2 Using the video output connectors
Note: The supported maximum resolution of the external monitors is 3840 x 2160 pixels / 60 Hz.
The video output connectors on the dock include two DP connectors and an HDMI connector. The dock works in the following three
video output modes:
• Extend mode: Extends the video output from your computer display to external displays. You can drag and move items between
your computer and external displays. By default, the dock works in the extend mode.
• Mirror mode: Displays the same video output on your computer screen and external displays. The dock automatically selects the
settings (screen resolution, color quality, and refresh rate) for the external monitors, which achieves optimal resolution based on
your computer.
• Single-display mode: Shows the video output only one of the displays.
Note: In single display mode, if you select Show desktop only on 1, your computer display will be on and the external
monitor will turn off. However, the other functions such as audio, Ethernet, and USB connection can still work although the
external monitor is off. If you select Show desktop only on 2, the external monitor will be on and your computer display will
turn off.
The first time you connect the dock to your computer, the resolution of your computer and the connected monitor is changed to the
default. You can configure your external monitors to your needs by doing the following:
• “Setting the resolution of the external monitor” on page 9
• “Rotating the external monitor display” on page 8
To enter your desired display modes, do the following:
1. From the desktop, move the pointer to the bottom-left corner of the screen, and then search Control Panel in the search box.
2. Depending on your Control Panel mode, do one of the following:
•Click Display ➙Change display settings.
•Click Appearance and Personalization ➙Display ➙Change display settings.
3. In the Multiple displays drop-down list box, select your desired display mode.
4. Follow the instructions on the screen to complete the setting.
3.2.1 Rotating the external display
The dock enables you to rotate only your external display as you want.
To rotate the external display, do the following:
1. From the desktop, move the pointer to the bottom-left corner of the screen, and then search Control Panel in the search box.

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2. Depending on your Control Panel mode, do one of the following:
•Click Display ➙Change display settings.
•Click Appearance and Personalization ➙Display ➙Change display settings.
3. In the Orientation drop-down list box, select one of the following options:
•Landscape: The external display remains the same as your computer display.
•Portrait: The external display rotates 90 degrees to the left.
•Landscape (flipped): The external display becomes upside-down.
•Portrait (flipped): The external display rotates 90 degrees to the right.
4. Follow the instructions on the screen to complete the setting.
Note: You also can continually click Portrait or Portrait (flipped) until the display becomes upside-down.
3.2.2 Setting the resolution of the external display
To set the resolution of the external display, do the following:
1. From the desktop, move the pointer to the bottom-left corner of the screen, and then search Control Panel in the search box.
2. Depending on your Control Panel mode, do one of the following:
•Click Display ➙Change display settings.
•Click Appearance and Personalization ➙Display ➙Change display settings ➙Advanced display settings.
3. In the Resolution drop-down list box, move the slider up to increase or down to decrease the resolution of the external display.
4. Follow the instructions on the screen to complete the setting.

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Chapter 4. Troubleshooting
This chapter provides some troubleshooting hints and tips to assist you if you experience any problems with the dock. Check the
following items first to try to solve the problem.
4.1 General
1. The dock does not work after connected to a computer with the provided Thunderbolt 3 cable.
Ensure that the dock is well powered by its power adapter. The dock always needs an external power adapter for
operation, because it does not take power from the Thunderbolt 3 connector attached to your computer.
Ensure that the device driver of the dock is well installed; if not, install the device driver and restart the computer.
Ensure that the Thunderbolt 3 connector on your computer works well.
Disconnect and reconnect the Thunderbolt 3 cable to ensure that the cable works well.
2. The 2.4 GHz wireless keyboard or 2.4 GHz wireless mouse function is interrupted. The mouse pointer lags or it cannot
move. Some characters are lost when you input by the keyboard.
Ensure that you connect your 2.4 GHz device receiver to the USB 2.0 connector on the dock.
Avoid connecting another USB 3.0 device next to the connector with the receiver attached.
3. The charging speed becomes slow, after I connect my device (such as a mobile phone) to the dock for charging.
Ensure that you connect your mobile phone to the Always On USB 3.0 connector. Disconnect the dock from the computer, the
charging speed might become faster.
4. My mobile phones or other USB devices cannot be charged with the Always On USB 3.0 connector on the dock.
It is recommended that you can disconnect the dock from the computer, and then you can charge the mobile phones or other USB
devices.
5. The mouse and keyboard cannot wake up my computer when connected to the Always On USB 3.0 connector.
Ensure that your mouse or keyboard is connected to another USB connector on the dock instead of the Always On USB 3.0
connector.
6. My computer cannot be charged after I connect it to the dock.
Ensure that you use the power adapter that shipped with the dock and the Thunderbolt 3 connector on your computer supports the
charging function.
6. My dock sometimes stops working.
Ensure that both air vents are not blocked.
4.2 Video output
1. The external monitor display is blank.
•Ensure that the computer connected to the dock is running correctly and is not in standby or hibernation mode. When the
computer is in standby or hibernation mode, the external monitor display is always blank.
•Ensure that the device driver is installed following the installation instructions.
•Ensure that the following connections are correct:
–The connection between the Thunderbolt 3 cable and your computer
–The connection between the Thunderbolt 3 cable and the dock
–The connection between the power adapter, the dock, and the electrical outlet
–The connection between your video cable to the dock and the external monitor

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If the problem persists, disconnect all connections of the dock, and uninstall the dock device driver. Then, reinstall the device driver
and the dock. See Chapter 3 “Using the dock” on page 8.
2. I cannot play back videos on the external monitor but can play them back on the computer monitor.
Some computers do not support the Certified Output Protection Protocol (COPP), and you cannot play back the protected videos
on the external monitor connected to the dock.
To play back videos on the external monitor, you can connect the external monitor to the HDMI or DisplayPort connector on your
computer, and extend the display to the external monitor. For more information about configuring the display settings, see “Setting
the resolution of the external monitor” on page 9.
3. The images on the external monitor flutter.
Check the display resolution of the computer and ensure that the resolution is supported by the dock.
4. The computer can play back Web flashes. However, when you drag the window to the external monitor and maximize
the playback window, the playback stops.
To solve the problem, update your Adobe Flash Player program to the latest version.
4.3 Audio
I cannot hear anything through my computer speakers or I cannot use the audio connectors on the computer.
By default, Lenovo computers use the headset and microphone combo connector on the dock and disable built-in audio connectors
when the dock is connected.
To enable the built-in audio connectors on your computer, do the following:
1. Right-click the Volume icon in the Windows notification area.
2. Select Sounds, and the Sound window is displayed.
3. Click the Playback tab to select a built-in audio device, and then click the Recording tab to select another built-in audio device.
See “Using the video output connectors” on page 8 for more information.
Note: To apply the new settings, restart the applications that are using the audio devices. The settings you have adjusted will be
saved until you change the settings next time.
Trademarks
Lenovo and the Lenovo logo are trademarks of Lenovo in the United States, other countries, or both.
DisplayPort is a trademark of the Video Electronics Standards Association.
Microsoft and Windows are trademarks of the Microsoft group of companies.
NVIDIA and GeForce are trademarks and/or registered trademarks of NVIDIA Corporation in the U.S. and/or other countries.
Thunderbolt and the Thunderbolt logo are trademarks of Intel Corporation or its subsidiaries in the U.S.and/or other countries.
The terms HDMI and HDMI High-Definition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing LLC in
the United States and other countries.
Other company, product, or service names may be trademarks or service marks of others.

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Part Number: SP40N88677
Printed in China
1P) P/N: SP40N88677
SP40N88677
SP40N88677