Lenovo ThinkCentre M70a, ThinkCentre M90a User Manual
M70a and M90a
User Guide
Read this first
Before using this documentation and the product it supports, ensure that you read and understand the
following:
• Appendix A “Important safety information” on page 83
• Safety and Warranty Guide
• Setup Guide
First Edition (April 2020)
© Copyright Lenovo 2020.
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. GS35F-05925.
Contents
About this documentation . . . . . . . . iii
Chapter 1. Meet your computer. . . . . 1
Front . . . . . . . . . . . . . . . . . . . . 1
Rear . . . . . . . . . . . . . . . . . . . . 3
Locating connectors on system board . . . . . . . 4
Features and specifications . . . . . . . . . . . 6
Statement on USB transfer rate . . . . . . . . 7
Chapter 2. Get started with your
computer . . . . . . . . . . . . . . . . . 9
Adjust the computer stand (for selected models) . . . 9
Get started with Windows 10 . . . . . . . . . 10
Windows account . . . . . . . . . . . . 10
Windows user interface . . . . . . . . . . 11
Connect to networks. . . . . . . . . . . . . 12
Connect to the wired Ethernet . . . . . . . 12
Connect to Wi-Fi networks (for selected
models) . . . . . . . . . . . . . . . . 12
Use Lenovo Vantage . . . . . . . . . . . . . 12
Use Night light . . . . . . . . . . . . . . . 13
Use the multi-touch screen (for selected
models) . . . . . . . . . . . . . . . . . . 13
Use multimedia . . . . . . . . . . . . . . . 16
Use audio . . . . . . . . . . . . . . . 16
Use the camera (for selected models) . . . . 16
Connect to an external display . . . . . . . 16
Chapter 3. Explore your computer . . 19
Manage power . . . . . . . . . . . . . . . 19
Set power button behaviors . . . . . . . . 19
Set the power plan . . . . . . . . . . . . 19
Transfer data . . . . . . . . . . . . . . . . 19
Connect to a Bluetooth-enabled device (for
selected models) . . . . . . . . . . . . 19
Use the optical drive (for selected models) . . 20
Use a media card (for selected models). . . . 20
Purchase accessories . . . . . . . . . . . . 21
Chapter 4. Secure your computer
and information . . . . . . . . . . . . 23
Lock the computer . . . . . . . . . . . . . 23
Log in to your computer securely . . . . . . . . 23
Use passwords . . . . . . . . . . . . . 23
Use face authentication (for selected
models) . . . . . . . . . . . . . . . . 24
Use software security solutions. . . . . . . . . 25
Use firewalls . . . . . . . . . . . . . . 25
Use antivirus programs . . . . . . . . . . 25
Use computrace Agent software embedded in
firmware (for selected models) . . . . . . . 25
Use BIOS security solutions . . . . . . . . . . 25
Erase all storage drive data . . . . . . . . 26
Use the cover presence switch . . . . . . . 26
Use Intel BIOS guard . . . . . . . . . . . 26
Use Smart USB Protection. . . . . . . . . 26
Chapter 5. UEFI BIOS . . . . . . . . . 29
What is UEFI BIOS. . . . . . . . . . . . . . 29
Enter the BIOS menu. . . . . . . . . . . . . 29
Navigate in the BIOS interface . . . . . . . . . 29
Change the display language of UEFI BIOS . . . . 29
Set the system date and time . . . . . . . . . 30
Change the startup sequence . . . . . . . . . 30
Enable or disable the configuration change
detection feature . . . . . . . . . . . . . . 30
Enable or disable the automatic power-on
feature . . . . . . . . . . . . . . . . . . 31
Enable or disable the smart power-on feature . . . 31
Enable or disable the ErP LPS compliance mode . . 31
Change the ICE performance mode . . . . . . . 32
Change BIOS settings before installing a new
operating system . . . . . . . . . . . . . . 32
Update UEFI BIOS. . . . . . . . . . . . . . 32
Recover from a BIOS update failure . . . . . . . 33
Clear CMOS . . . . . . . . . . . . . . . . 34
Chapter 6. Troubleshooting,
diagnostics, and recovery . . . . . . . 35
Basic procedure for resolving computer
problems . . . . . . . . . . . . . . . . . 35
Troubleshooting . . . . . . . . . . . . . . 35
Startup problems . . . . . . . . . . . . 36
Screen problems . . . . . . . . . . . . 37
Audio problems . . . . . . . . . . . . . 38
Network problems . . . . . . . . . . . . 38
Performance problems . . . . . . . . . . 41
Storage drive problems . . . . . . . . . . 42
CD or DVD problems . . . . . . . . . . . 42
Serial connector problems. . . . . . . . . 43
USB device problems . . . . . . . . . . 43
Software problems. . . . . . . . . . . . 44
Diagnostics . . . . . . . . . . . . . . . . 44
Lenovo diagnostic tools. . . . . . . . . . 44
Recovery . . . . . . . . . . . . . . . . . 44
© Copyright Lenovo 2020 i
Restore system files and settings to an earlier
point . . . . . . . . . . . . . . . . . 44
Restore your files from a backup . . . . . . 44
Reset your computer . . . . . . . . . . . 44
Use advanced options . . . . . . . . . . 45
Windows automatic recovery. . . . . . . . 45
Create and use a recovery USB device . . . . 45
Update the device driver . . . . . . . . . 46
Chapter 7. CRU replacement . . . . . 47
What are CRUs . . . . . . . . . . . . . . . 47
Replace a CRU . . . . . . . . . . . . . . . 48
Computer stand . . . . . . . . . . . . . 48
Rear cover . . . . . . . . . . . . . . . 52
Optical drive . . . . . . . . . . . . . . 53
Optical drive holder . . . . . . . . . . . 56
System board shield . . . . . . . . . . . 58
VESA mount bracket cover . . . . . . . . 61
VESA mount bracket . . . . . . . . . . . 63
Storage drive and storage drive bracket . . . 65
M.2 solid-state drive . . . . . . . . . . . 70
Memory module . . . . . . . . . . . . . 74
Chapter 8. Help and support . . . . . 79
Self-help resources . . . . . . . . . . . . . 79
Call Lenovo . . . . . . . . . . . . . . . . 80
Before you contact Lenovo . . . . . . . . 80
Lenovo Customer Support Center . . . . . . 80
Purchase additional services. . . . . . . . . . 81
Appendix A. Important safety
information . . . . . . . . . . . . . . . 83
Appendix B. Accessibility and
ergonomic information . . . . . . . . 97
Appendix C. Supplemental
information about the Ubuntu operating
system . . . . . . . . . . . . . . . . . 101
Appendix D. Compliance
information . . . . . . . . . . . . . . . 103
Appendix E. Notices and
trademarks . . . . . . . . . . . . . . . 113
ii M70a and M90a User Guide
About this documentation
• Illustrations in this documentation might look different from your product.
• Depending on the model, some optional accessories, features, and software programs might not be
available on your computer.
• Depending on the version of operating systems and programs, some user interface instructions might not
be applicable to your computer.
• Documentation content is subject to change without notice. Lenovo makes constant improvements on the
documentation of your computer, including this User Guide. To get the latest documentation, go to:
https://pcsupport.lenovo.com
• Microsoft® makes periodic feature changes to the Windows® operating system through Windows Update.
As a result, some information in this documentation might become outdated. Refer to Microsoft resources
for the latest information.
© Copyright Lenovo 2020 iii
iv M70a and M90a User Guide
Chapter 1. Meet your computer
Front
1. Integrated camera activity
indicator*
2. Microphones* Capture or record sound and voice.
3. Integrated camera or IR
camera shield*
4. Integrated camera or IR
camera*
5. Multi-touch screen*
6. System status indicator
7. Storage drive activity indicator This indicator is on when the storage drive is in use.
8. Microphone mute/unmute
indicator*
This indicator is on when the camera is in use.
Slide to cover the camera lens whenever you need.
• Take pictures or record videos by clicking Camera from the Start menu.
• Log in to your computer with face authentication.
If you use other apps that support photographing, video chatting, and video
conference, the camera starts automatically when you enable the camerarequired feature from the app.
Enable you to use your computer with simple touch gestures.
The indicator shows the system status of your computer.
• Blinking for three times: The computer is initially connected to power.
• On: The computer is on.
• Off: The computer is off or in hibernation mode.
• Blinking rapidly: The computer is entering hibernation mode.
• Breathing (blinking slowly): The computer is in sleep or modern standby
mode.
This indicator is on when the microphones are muted.
© Copyright Lenovo 2020 1
9. E-Privacy button*
Press the button to enable the E-Privacy mode. In this mode, your screen
prevents visual hackers from stealing sideways glances at your screen, while
providing a crisp, clear view for intended users. To exit from the mode, press the
button again.
10. Microphone mute/unmute
control*
11. USB-C
™
connector (USB 3.2
Gen 1)
12. USB 3.2 connector Gen 2
13. USB 3.2 connectors Gen 2
(M90a) or USB 3.2 connector
Gen 1 (M70a)
14. Headset connector
15. Optical drive eject/close
button*
16. Optical drive activity
indicator*
17. SD-card slot*
Mute or unmute the integrated microphones in the computer mode.
• Charge USB-C compatible devices with the output voltage and current of 5 V
and 3 A.
• Transfer data at USB 3.2 speed, up to 5 Gbps.
• Connect to USB-C accessories to help expand your computer functionality. To
purchase USB-C accessories, go to
https://www.lenovo.com/accessories.
Connect USB-compatible devices, such as a USB keyboard, USB mouse, USB
storage device, or USB printer.
Connect USB-compatible devices, such as a USB keyboard, USB mouse, USB
storage device, or USB printer.
Connect a headset or headphones to your computer.
Eject or close the optical drive tray.
This indicator is on when the optical drive is in use.
Supported cards:
• Secure Digital (SD) card
• Secure Digital eXtended-Capacity (SDXC) UHS-1 card
• Secure Digital High-Capacity (SDHC) UHS-1 card
18. Power button
* for selected models
Note: Your computer does not support the content protection for recordable
media (CPRM) feature for the SD card.
Press to turn on the computer.
To turn off the computer, open the Start menu, click
Power, and then select
Shut down.
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M70a and M90a User Guide
Rear
1. Security-lock slot
2. Cable cover eject button
3. Cable clip Press the clip to route the cables connected to the computer.
4. USB 3.2 connector Gen 1 (with
keyboard smart power on
feature)
5. USB 3.2 connectors Gen 1 (3)
6. Ethernet connector
7. Serial connector*
8. Power cord connector
9. DisplayPort
®
1.2 out connector
Lock your computer to a desk, table, or other fixtures through a Kensington-style
cable lock.
Press the button to access the covered connectors and cables.
Note: For easy access, do not cover the button with any external parts.
Connect USB-compatible devices, such as a USB keyboard, USB mouse, USB
storage device, or USB printer.
Note: When a USB keyboard is connected, you can turn on the computer by
pressing Alt+P on the keyboard.
Connect USB-compatible devices, such as a USB keyboard, USB mouse, USB
storage device, or USB printer.
Connect to a local area network (LAN). When the green indicator is on, the
computer is connected to a LAN. When the yellow indicator blinks, data is being
transmitted.
Connect an external modem, a serial printer, or other devices that use a serial
connector.
Connect the power cord to your computer for power supply.
Send audio and video signals from the computer to another audio or video device,
such as a high-performance monitor. For more information, see
www.vesa.org/wp-content/uploads/2010/12/DisplayPort-DevCon-Presentation-DP-
1.2-Dec-2010-rev-2b.pdf
.
https://
* for selected models
Chapter 1. Meet your computer 3
Locating connectors on system board
Figure 1. M70a system board
1 LCD LVDS connector
3 Microprocessor socket
5 Touch board connector 6 Memory slots
7 M.2 solid-state drive slot 8 M.2 Wi-Fi card slot
9 Optical drive connector 10 Clear CMOS (Complementary Metal Oxide
2 Integrated camera and microphone module connector
4 Serial (COM1) connector
Semiconductor) / Recovery jumper
11 ME disable header
12 Cover presence switch connector (intrusion switch
connector)
13 Internal speaker connector
15 Card reader connector 16 LCD backlight connector
17 Coin-cell battery 18 System fan connector
14 Storage drive connector
4 M70a and M90a User Guide
Figure 2. M90a system board
1 LCD backlight connector 2 LCD LVDS connector
3 Integrated camera and microphone module connector 4 Microprocessor socket
5 Serial (COM1) connector
7 M.2 solid-state drive slot 8 M.2 Wi-Fi card slot
9 Coin-cell battery
11 Optical drive connector
13 E-Privacy connector
6 Memory slots
10 Touch board connector
12 Internal speaker connector
14 Cover presence switch connector (intrusion switch
connector)
15 Card reader connector 16 Storage drive connector
17 ME disable header
18 Clear CMOS (Complementary Metal Oxide
Semiconductor) / Recovery jumper
19 System fan connector
Chapter 1. Meet your computer 5
Features and specifications
• M70a:
– Width: 490.1 mm (19.3 inches)
– Height: 312.3 mm (12.3 inches)
– Depth: 55.6 mm (2.2 inches)
• M90a:
Dimensions (without any
computer stand)
Weight (without the package)
Hardware configuration
– E-Privacy models:
– Width: 541 mm(21.3 inches)
– Height: 338.5 mm (13.3 inches)
– Depth: 49.5 mm (2.4 inches)
– Non E-Privacy models:
– Width: 541 mm(21.3 inches)
– Height: 338.5 mm (13.3 inches)
– Depth: 57.8 mm (2.3 inches)
Maximum configuration as shipped:
• M70a: 8.1 kg (17.9 lb)
• M90a: 9.1 kg (20.1 lb)
1. Right-click the Start button to open the Start context menu.
2. Click Device Manager. Type the administrator password or provide
confirmation if prompted.
• 135-watt automatic voltage-sensing power supply
Power supply
Electrical input
Microprocessor
Memory Double data rate 4 (DDR4) small outline dual in-line memory module (SODIMM)
Storage device
• 150-watt automatic voltage-sensing power supply
• 170-watt automatic voltage-sensing power supply
• 230-watt automatic voltage-sensing power supply
• Input voltage: From 100 V ac to 240 V ac
• Input frequency: 50/60 Hz
To view the microprocessor information of your computer, right-click the Start
button and then click System.
• 2.5-inch form factor, 7-mm (0.28-inch) height storage drive*
• M.2 solid-state drive*
®
• Intel
To view the storage drive capacity of your computer, right-click the Start button
to open the Start context menu and then click Disk Management.
Note: The storage drive capacity indicated by the system is less than the nominal
capacity.
Optane™ memory*
6 M70a and M90a User Guide
Video features
Audio features
Expansion
• Color display with White Light Emitting Diode (WLED) technology
• Color display with Full High Definition (FHD) technology
• Display size:
– M70a: 546.1 mm (21.5 inches)
– M90a: 604.5 mm (23.8 inches)
• Display resolution: 1920 x 1080 pixels
• Multi-touch technology*
• The integrated graphics card supports DisplayPort 1.2 out connector.
• The optional discrete graphics card provides an enhanced video experience
and extended capabilities.
• The integrated audio card supports the following:
– Headset connector
– Integrated microphones*
– Internal speakers
• Card reader*
• Memory slots
• M.2 solid-state drive slot
• Optical drive*
• Storage drive bay
• Bluetooth*
Network features
• Ethernet LAN
• Wireless LAN*
* for selected models
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 will vary and will be slower than the data rate listed
below for each corresponding device.
USB device Data rate (Gbit/s)
3.2 Gen 1 / 3.1 Gen 1
3.2 Gen 2 / 3.1 Gen 2
3.2 Gen 2 × 2
5
10
20
Chapter 1. Meet your computer 7
8 M70a and M90a User Guide
Chapter 2. Get started with your computer
Adjust the computer stand (for selected models)
Note: For information about installing the computer stand, refer to the setup guide that comes with your
computer.
Full-function monitor stand
• Tilt the screen forward and back.
• Adjust the height of the screen.
UltraFlex IV Stand
• Tilt the screen forward and back.
© Copyright Lenovo 2020 9
Get started with Windows 10
Learn the basics of Windows 10 and start working with it right away. For more information about Windows
10, see the Windows help information.
Windows account
A user account is required to use the Windows operating system. It can either be a Windows user account or
a Microsoft account.
Windows user account
When you start Windows for the first time, you are prompted to create a Windows user account. This first
account you created is of the “Administrator” type. With an Administrator account, you can create additional
user accounts or change account types by doing the following:
1. Open the Start menu and select Settings ➙ Accounts ➙ Family & other users.
2. Follow the on-screen instructions.
Microsoft account
You can also log in to the Windows operating system with a Microsoft account.
To create a Microsoft account, go to the Microsoft sign-up page at
screen instructions.
With a Microsoft account, you can:
• Enjoy one-time signing in if you are using other Microsoft services, such as OneDrive, Skype, and Outlook.
com.
• Sync personalized settings across other Windows-based devices.
10
M70a and M90a User Guide
https://signup.live.com and follow the on-
Windows user interface
1. Account
2. Documents
3. Pictures
4. Settings
5. Power
6. Start button
7. Windows Search
8. Task View
9. Windows notification area
10. Battery status icon
11. Network icon
12. Action center
Change account settings, lock the computer, or sign out from the current account.
Open the Documents folder, a default folder to save your received files.
Open the Pictures folder, a default folder to save your received pictures.
Launch Settings.
Shut down, restart, or put the computer into sleep mode.
Open the Start menu.
Type what you are looking for in the search box and get search results from your
computer and the Web.
Display all opened apps and switch among them.
Display notifications and status of some features.
Display power status and change battery or power settings. When your computer
is not connected to ac power, the icon changes to
Connect to an available wireless network and display the network status. When
connected to a wired network, the icon changes to
Display the latest notifications from apps and provide quick access to some
features.
Open the Start menu
• Click the Start button.
• Press the Windows logo key on the keyboard.
.
.
Open the Start context menu
Right-click the Start button.
Chapter 2. Get started with your computer 11
Access Control Panel
• Open the Start menu and click Windows System ➙ Control Panel.
• Use Windows Search.
Launch an app
• Open the Start menu and select the app you want to launch.
• Use Windows Search.
Connect to networks
Your computer helps you connect to the world through a wired or wireless network.
Connect to the wired Ethernet
Connect your computer to a local network through the Ethernet connector on your computer with an
Ethernet cable.
Connect to Wi-Fi networks (for selected models)
1. Click the network icon in the Windows notification area. A list of available wireless networks is displayed.
2. Select a network available for connection. Provide required information, if needed.
Use Lenovo Vantage
The preinstalled Lenovo Vantage is a customized one-stop solution to help you maintain your computer with
automated updates and fixes, configure hardware settings, and get personalized support.
Access Lenovo Vantage
Open the Start menu and click Lenovo Vantage. You also can type Lenovo Vantage in the search box.
To download the latest version of Lenovo Vantage, go to Microsoft Store and search by the app name.
Key features
Lenovo Vantage enables you to:
• Know the device status easily and customize device settings.
• Download and install UEFI BIOS, firmware and driver updates to keep your computer up-to-date.
• Monitor your computer health, and secure your computer against outside threats.
• Look up warranty status (online).
• Access User Guide and helpful articles.
Notes:
• The available features vary depending on the computer model.
• Lenovo Vantage makes periodic updates of the features to keep improving your experience with your
computer. The description of features might be different from that on your actual user interface.
12
M70a and M90a User Guide
Use Night light
Blue light is the high-energy visible light in the light spectrum. Excessive exposure to blue light might damage
your vision. Night light is a feature that reduces the blue light emitted by computer displays. When the night
light is on, your computer display shows warmer colors that help you reduce eye strain.
To turn on or turn off the night light, do one of the following:
• Type Night light in the search box. Click Night light to open its settings window. Then, follow the on-
screen instructions.
• Open the Start menu. Click Settings ➙ System ➙ Display. Then, turn on or turn off the Night light
switch.
Use the multi-touch screen (for selected models)
If your computer display supports the multi-touch function, you can navigate the screen with simple touch
gestures.
Note: Some gestures might not be available depending on the app you use.
Tap once
• From the Start menu: Open an app or item.
• From the desktop: Select an app or item.
• In an open app: Perform an action such as Copy, Save, and
Delete, depending on the app.
Tap twice quickly
Open an app or item from the desktop.
Chapter 2. Get started with your computer 13
Tap and hold
Open a shortcut menu.
Slide
Scroll through items, such as lists, pages, and photos.
Drag an item to the location you want
Move an object.
Move two fingers closer together
Zoom out.
14 M70a and M90a User Guide
Move two fingers farther apart
Zoom in.
Swipe in from the right edge
Open the action center to see your notifications and quick actions.
Swipe in from the left edge
View all your open windows in task view.
• Swipe downwards shortly from the top edge (for full-screened
app or when your computer is in the tablet mode)
Show a hidden title bar.
• Swipe in from the top edge to the bottom edge (when your
computer is in the tablet mode)
Close the current app.
Chapter 2. Get started with your computer 15
Tips
• Turn off the computer before cleaning the multi-touch screen.
• Use a dry, soft, and lint-free cloth or a piece of absorbent cotton to remove fingerprints or dust from the
multi-touch screen. Do not apply solvents to the cloth.
• The multi-touch screen is a glass panel covered with a plastic film. Do not apply pressure or place any
metallic object on the screen, which might damage the touch panel or cause it to malfunction.
• Do not use fingernails, gloved fingers, or inanimate objects for input on the screen.
• Regularly calibrate the accuracy of the finger input to avoid a discrepancy.
Use multimedia
Use your computer for business or entertainment with the devices (such as a camera, a monitor, or
speakers).
Use audio
To enhance the audio experience, connect speakers, headphones, or a headset to the audio connector.
Adjust the volume
1. Click the volume icon in the Windows notification area on the taskbar.
2. Follow the on-screen instructions to adjust the volume. Click the speaker icon to mute the audio.
Change the sound settings
1. Go to Control Panel and view by category.
2. Click Hardware and Sound ➙ Sound.
3. Change the settings as you prefer.
Use the camera (for selected models)
You can use the camera to take photos or record videos.
To take photos or record a video:
1. Open the Start menu and click Camera. You also can type Camera in the search box.
2. To take a photo, click the camera icon. If you want to record video, click the video icon to switch to
video mode.
If you use other programs that provide features such as photographing, video capturing, and video
conference, the camera starts automatically when you enable the camera-required feature.
Connect to an external display
Connect your computer to a projector or a monitor to give presentations or expand your workspace.
Connect to a wired display
1. Connect the external display to the DisplayPort-out connector on your computer.
2. Connect the external display to an electrical outlet.
3. Turn on the external display.
If your computer cannot detect the external display, right-click an empty area of the desktop, and then click
Display settings ➙ Detect.
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M70a and M90a User Guide
Connect to a wireless display
To use a wireless display, ensure that both your computer and the external display support the Miracast
®
feature.
• Open the Start menu, and then click Settings ➙ Devices ➙ Bluetooth & other devices ➙ Add
Bluetooth or other device. In the Add a device window, click Wireless display or dock. Then, follow the
instructions on the screen.
• Click the action center icon
in the Windows notification area and click Connect. Select the wireless
display and follow the on-screen instructions.
Set the display mode
Right-click a blank area on the desktop and select Display settings. Then, select a display mode of your
preference from the Multiple displays menu.
• Duplicate these displays: Display the same video output on both your computer screen and an external
display.
• Extend these displays: Extend the video output from your computer display to an external display. You
can drag and move items between the two displays.
• Show only on 1: Display the video output only on your computer screen.
• Show only on 2: Display the video output only on an external display.
If you show programs using DirectDraw or Direct3D
®
in full-screen mode, only the main display shows the
video output.
Change display settings
1. Right-click a blank area on the desktop and select Display settings.
2. Select the display that you want to configure.
3. Change display settings of your preference.
You can change the settings for both the computer display and the external display. For example, you can
define which one is the main display and which one is the secondary display. You also can change the
resolution and orientation.
Note: If you set a higher resolution for the computer display than the external display, only part of the screen
can be displayed on the external display.
Chapter 2. Get started with your computer 17
18 M70a and M90a User Guide
Chapter 3. Explore your computer
Manage power
Use the information in this section to achieve the best balance between performance and power efficiency.
Set power button behaviors
You can define what the power button does according to your preference. For example, by pressing the
power button, you can turn off the computer or put the computer to sleep or hibernation mode.
To change what the power button does:
1. Go to Control Panel and view by large icons or small icons.
2. Click Power Options ➙ Choose what the power buttons do.
3. Change the settings as you prefer.
Set the power plan
For ENERGY STAR® compliant computers, the following power plan takes effect when your computers have
been idle for a specified duration:
Table 1. Default power plan (when plugged into ac power)
• Turn off the display: After 10 minutes
• Put the computer to sleep: After 25 minutes
To awaken the computer from Sleep mode, press any key on your keyboard.
To reset the power plan to achieve the best balance between performance and power saving:
1. Go to Control Panel and view by large icons or small icons.
2. Click Power Options, and then choose or customize a power plan of your preference.
Transfer data
Quickly share your files using the built-in Bluetooth technology among devices with the same features. You
also can install a disc or media card to transfer data.
Connect to a Bluetooth-enabled device (for selected models)
You can connect all types of Bluetooth-enabled devices to your computer, such as a keyboard, a mouse, a
smartphone, or speakers. To ensure that the connection is successful, place the devices 10 meters (33 feet),
at most, from the computer.
1. Turn on Bluetooth on the computer.
a. Open the Start menu, and then click Settings ➙ Devices ➙ Bluetooth & other devices.
b. Turn on the Bluetooth switch.
2. Click Add Bluetooth or other device ➙ Bluetooth.
3. Select a Bluetooth device, and then follow the on-screen instructions.
© Copyright Lenovo 2020 19
Your Bluetooth device and computer will automatically connect the next time if the two devices are in range
of each other with Bluetooth turned on. You can use Bluetooth for data transfer or remote control and
communication.
Use the optical drive (for selected models)
If your computer has an optical drive, read the following information.
Know the type of your optical drive
1. Right-click the Start button to open the Start context menu.
2. Click Device Manager. Type the administrator password or provide confirmation, if prompted.
Install or remove a disc
1. With the computer on, press the eject/close button on the optical drive. The tray slides out of the drive.
2. Insert a disc into the tray or remove a disc from the tray, and then press the eject/close button again to
close the tray.
Note: If the tray does not slide out of the drive when you press the eject/close button, turn off the computer.
Then, insert a straightened paper clip into the emergency-eject hole adjacent to the eject/close button. Use
the emergency eject only in an emergency.
Record a disc
1. Insert a recordable disc into the optical drive that supports recording.
2. Do one of the following:
• Open the Start menu, and then click Settings ➙ Devices ➙ AutoPlay. Select or turn on Use
AutoPlay for all media and devices.
• Open Windows Media Player.
• Double-click the ISO file.
3. Follow the on-screen instructions.
Use a media card (for selected models)
If your computer has a SD-card slot, read the following information.
Install a media card
1. Locate the SD-card slot.
2. Ensure that the metal contacts on the card are facing the ones in the SD-card slot. Insert the card firmly
into the SD-card slot until it is secured in place.
Remove a media card
Attention: Before removing a media card, eject the card from the Windows operating system first.
Otherwise, data on the card might get corrupted or lost.
1. Click the triangular icon in the Windows notification area to show hidden icons. Then, right-click the
Safely Remove Hardware and Eject Media icon.
2. Select the corresponding item to eject the card from the Windows operating system.
3. Press the card and remove it from your computer. Store the card safely for future use.
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M70a and M90a User Guide
Purchase accessories
Lenovo has a number of hardware accessories and upgrades to help expand the capabilities of your
computer. Options include memory modules, storage devices, network cards, power adapters, keyboards,
mice, and more.
To shop at Lenovo, go to
https://www.lenovo.com/accessories.
Chapter 3. Explore your computer 21
22 M70a and M90a User Guide
Chapter 4. Secure your computer and information
Lock the computer
Note: You are responsible for evaluating, selecting, and implementing the locking device and security
feature. Lenovo makes no comments, judgments, or warranties about the function, quality, or performance
of the locking device and security feature. You can purchase computer locks from Lenovo.
Kensington-style cable lock
Lock your computer to a desk, table, or other fixtures through a Kensington-style cable lock.
Log in to your computer securely
This section provides secure ways to log in to your computer with a password or your face.
Use passwords
Password types
You can set the following passwords in UEFI (Unified Extensible Firmware Interface) BIOS (Basic Input/
Output System) to prevent unauthorized access to your computer. However, you are not prompted to enter
any UEFI BIOS password when your computer resumes from sleep mode.
• Power-on password
When a power-on password is set, you are prompted to enter a valid password each time the computer is
turned on. The computer cannot be used until the valid password is entered.
• Supervisor password
Setting a supervisor password deters unauthorized users from changing configuration settings. If you are
responsible for maintaining the configuration settings of several computers, you might want to set a
supervisor password.
When a supervisor password is set, you are prompted to enter a valid password each time you try to enter
the BIOS menu.
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If both the power-on password and supervisor password are set, you can enter either password.
However, you must use your supervisor password to change any configuration settings.
• Hard disk password
Setting a hard disk password prevents unauthorized access to the data on the storage drive. When a hard
disk password is set, you are prompted to enter a valid password each time you try to access the storage
drive.
Note: After you set a hard disk password, your data on the storage drive is protected even if the storage
drive is removed from one computer and installed in another.
• System management password (for selected models)
You can enable the system management password to have the same authority as the supervisor
password to control security related features. To customize the authority of the system management
password through the UEFI BIOS menu:
1. Restart the computer. When the logo screen is displayed, press F1 or Fn+F1.
2. Select Security ➙ System Management Password Access Control.
3. Follow the on-screen instructions.
If you have set both the supervisor password and the system management password, the supervisor
password overrides the system management password.
Set, change, and remove a password
Before you start, print these instructions.
1. Restart the computer. When the logo screen is displayed, press F1 or Fn+F1.
2. Select Security.
3. Depending on the password type, select Set Supervisor Password, Set Power-On Password, Set
System Management Password, or Hard Disk Password and press Enter.
4. Follow the on-screen instructions to set, change, or remove a password.
5. Press F10 or Fn+F10 to save the changes and exit.
You should record your passwords and store them in a safe place. If you forget the passwords, see “Clear
CMOS” on page 34 to remove them by yourself. You can also contact a Lenovo-authorized service provider
to have the passwords removed.
Notes:
• If the supervisor password is forgotten, it might not be removed by clearing CMOS depending on your
BIOS settings.
• If the hard disk password is forgotten, Lenovo cannot remove the password or recover data from the
storage drive.
Use face authentication (for selected models)
If your computer comes with a Windows Hello-compatible infrared camera, you can unlock your computer by
scanning your face instead of using a password.
Create face ID
1. Open the Start menu and click Settings ➙ Accounts ➙ Sign-in options.
2. Locate the Password section and click Add to create a password.
3. Follow the on-screen instructions to create a Personal Identification Number (PIN).
4. Locate the Windows Hello section and click Set up under Face Recognition. Then, click Get Started.
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M70a and M90a User Guide
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