Lenovo ThinkCentre M70s Gen 2 User manual

ThinkCentre M70s Gen 4
ThinkCentre M90s Gen 4
User Guide

Read this first
Before using this documentation and the product it supports, ensure that you read and understand the
follo ing:
• Safety and Warranty Guide
• Generic Safety and Compliance Notices
• Setup Guide
First Edition (May 2023)
© Copyright Lenovo 2023.
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
Discover yo r Lenovo comp ter . . . . iii
Chapter 1. Meet yo r comp ter . . . . . 1
Front . . . . . . . . . . . . . . . . . . . . 1
Rear . . . . . . . . . . . . . . . . . . . . 4
Features and specifications . . . . . . . . . . . 6
USB specifications . . . . . . . . . . . . . . 7
The Vantage app . . . . . . . . . . . . . . . 8
Chapter 2. Get started with yo r
comp ter . . . . . . . . . . . . . . . . . 9
Connect an external display . . . . . . . . . . . 9
Lock the computer . . . . . . . . . . . . . . 9
Access net orks . . . . . . . . . . . . . . 10
Transfer data . . . . . . . . . . . . . . . . 11
Diagnostics . . . . . . . . . . . . . . . . 13
Troubleshooting and FAQs . . . . . . . . . . 13
Recovery . . . . . . . . . . . . . . . . . 13
Chapter 3. Advanced
config rations . . . . . . . . . . . . . 15
Set the po er plan . . . . . . . . . . . . . 15
Use soft are security solutions. . . . . . . . . 15
Use BIOS security solutions . . . . . . . . . . 15
UEFI BIOS pass ords . . . . . . . . . . . . 17
Certificate-based BIOS management . . . . . . 18
What is UEFI BIOS. . . . . . . . . . . . . . 18
Enter the BIOS menu. . . . . . . . . . . . . 19
Navigate in the BIOS interface . . . . . . . . . 19
Change the display language of UEFI BIOS . . . . 19
Change the display mode of UEFI BIOS (for
selected models) . . . . . . . . . . . . . . 19
Set the system date and time . . . . . . . . . 20
Change the priority boot order . . . . . . . . . 20
Enable or disable the configuration change
detection feature . . . . . . . . . . . . . . 20
Enable or disable the automatic po er-on
feature . . . . . . . . . . . . . . . . . . 21
Enable or disable the smart po er-on feature (for
selected models) . . . . . . . . . . . . . . 21
Enable or disable the ErP LPS compliance mode . . 21
Change the ITS performance mode . . . . . . . 22
Change BIOS settings before installing a ne
operating system . . . . . . . . . . . . . . 22
Update UEFI BIOS. . . . . . . . . . . . . . 23
Chapter 4. CRU replacement . . . . . 25
CRU list . . . . . . . . . . . . . . . . . . 25
Vertical stand. . . . . . . . . . . . . . . . 26
Computer cover. . . . . . . . . . . . . . . 26
Optical drive . . . . . . . . . . . . . . . . 27
Front bezel. . . . . . . . . . . . . . . . . 30
Drive bay assembly . . . . . . . . . . . . . 31
Hard disk drive . . . . . . . . . . . . . . . 32
M.2 solid-state drive and heat sink . . . . . . . 34
M.2 solid-state drive bracket. . . . . . . . . . 37
Memory module . . . . . . . . . . . . . . 38
PCI-Express connector cable . . . . . . . . . 39
PCI-Express slot cover . . . . . . . . . . . . 39
PCI-Express card . . . . . . . . . . . . . . 40
Coin-cell battery . . . . . . . . . . . . . . 42
Po er supply assembly. . . . . . . . . . . . 42
E-lock . . . . . . . . . . . . . . . . . . 43
Chapter 5. Help and s pport . . . . . 45
Self-help resources . . . . . . . . . . . . . 45
Call Lenovo . . . . . . . . . . . . . . . . 46
Certification-related information . . . . . . . . 47
Operating environment . . . . . . . . . . . . 47
Compliance information . . . . . . . . . . . 48
Purchase accessories . . . . . . . . . . . . 48
Purchase additional services. . . . . . . . . . 48
Appendix A. Notices and
trademarks . . . . . . . . . . . . . . . 49
© Copyright Lenovo 2023 i

ii ThinkCentre M70s Gen 4 ThinkCentre M90s Gen 4 User Guide

Discover yo r Lenovo comp ter
Thank yo for choosing a Lenovo® comp ter! We are dedicated to delivering the best sol tion to yo .
Before starting your tour, please read the follo ing information:
• Illustrations in this documentation might look different from your product.
• Depending on the model, some optional accessories, features, soft are programs, and user interface
instructions might not be applicable to your computer.
• Documentation content is subject to change ithout notice. To get the latest documentation, go to https://
pcsupport.lenovo.com.
© Copyright Lenovo 2023 iii

iv ThinkCentre M70s Gen 4 ThinkCentre M90s Gen 4 User Guide

Chapter 1. Meet yo r comp ter
Front
M70s Gen 4
1. Optical drive eject button* 2. Optical drive activity indicator*
3. SD-card slot* 4. Po er button and po er indicator
5. Storage drive activity indicator* 6. ThinkCentre® LED
7. Microphone connector 8. Headset connector
9. USB-C® (3.2 Gen 1) connector 10. USB 3.2 connectors Gen 1
11. USB 3.2 connectors Gen 2 12. Internal speaker
* 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 ill vary and ill be slo er than the data rate listed
belo for each corresponding device.
© Copyright Lenovo 2023 1

USB device Data rate (Gbit/s)
3.2 Gen 1 / 3.1 Gen 1 5
3.2 Gen 2 / 3.1 Gen 2 10
3.2 Gen 2 × 2 20
Thunderbolt 3 40
Thunderbolt 4 40
M90s Gen 4
1. Optical drive eject button* 2. Optical drive activity indicator*
3. SD-card slot* 4. Po er button and po er indicator
5. Storage drive activity indicator* 6. ThinkCentre LED
7. Microphone connector 8. Headset connector
9. USB-C (3.2 Gen 2) connector 10. USB 3.2 connectors Gen 1
11. USB 3.2 connectors Gen 2 12. Internal speaker
* for selected models
Power indicator
Sho the system status of your computer.
• On: The computer is starting up or orking.
• Off: The computer is off or in hibernation mode.
• Blinking: The computer is in sleep mode.
2ThinkCentre M70s Gen 4 ThinkCentre M90s Gen 4 User Guide

Headset connector
The headset connector is compatible ith:
• Headphones or earphones ith a 3.5mm (0.14 inch), TRS (3-pole) plug
• Headsets ith a 3.5mm (0.14 inch), CTIA-compliant TRRS (4-pole) plug
Note: This headset connector does not support standalone external microphones ith a TRS (3-pole) plug
or headsets ith an OMTP-compliant TRRS (4-pole) plug.
Related topics
• “USB specifications” on page 7.
Chapter 1.Meet your computer 3

Rear
M70s Gen 4
1. Audio line-out connector 2. Optional connector*
3. HDMI™ out connector 4. DisplayPort™ out connectors
5. USB 2.0 connectors 6. USB 2.0 connector ( ith smart po er-on)
7. Security-lock slot 8. PS/2 mouse connector*
9. PS/2 keyboard connector* 10. Ethernet connector
11. Padlock loop 12. E-lock slots
13. PCI-Express card area 14. Po er cord connector
* for selected models
4ThinkCentre M70s Gen 4 ThinkCentre M90s Gen 4 User Guide

M90s Gen 4
1. Audio line-out connector 2. Optional connector*
3. HDMI out connector 4. DisplayPort out connectors
5. USB 3.2 connectors Gen 1 6. USB 3.2 connectors Gen 1 ( ith smart po er-on)
7. Security-lock slot 8. PS/2 mouse connector*
9. PS/2 keyboard connector* 10. Ethernet connector
11. Padlock loop 12. E-lock slots
13. PCI-Express card area 14. Po er cord connector
* for selected models
Optional connector
Depending on the computer model, the connector might be a DisplayPort out connector, a USB-C (3.2 Gen1)
connector, a VGA out connector, or an HDMI out connector.
Related topics
• “USB specifications” on page 7.
• “Connect an external display” on page 9.
• “Lock the computer” on page 9.
• “Enable or disable the smart po er-on feature (for selected models)” on page 21.
Chapter 1.Meet your computer 5

Feat res and specifications
Dimensions
• Width: 92.5 mm (3.6 inches)
• Height: 339.5 mm (13.4 inches)
• Depth: 297.7 mm (11.7 inches)
Weight (witho t packaging) Maximum configuration as shipped: 5.3 kg (11.7 lb)
Hardware config ration Type Device Manager in the Windo s search box and then press Enter. Type the
administrator pass ord or provide confirmation, if prompted.
Power s pply
• 180- att automatic voltage-sensing po er supply
• 260- att automatic voltage-sensing po er supply
• 310- att automatic voltage-sensing po er supply
• 380- att automatic voltage-sensing po er supply
Electrical inp t • Input voltage: From 100 V ac to 240 V ac
• Input frequency: 50/60 Hz
Memory
• M90s Gen4 : Up to four double data rate 5 (DDR5) unbuffered dual in-line
memory modules (UDIMMs)
• M70s Gen4 : Up to four double data rate 4 (DDR4) unbuffered dual in-line
memory modules (UDIMMs)
Maximum memory capacity: 128 GB
Storage device
• 2.5-inch hard disk drive*
• 3.5-inch hard disk drive*
• M.2 solid-state drive*
To vie the storage drive capacity of your computer, type Disk Management in the
Windo s search box and then press Enter.
Note: The storage drive capacity indicated by the system is less than the nominal
capacity.
Video feat res
• The integrated graphics card supports the follo ing:
– DisplayPort out connector
– HDMI out connector
– VGA out connector*
– USB-C (3.2 Gen1) connector* (on the rear panel)
• The optional discrete graphics card provides an enhanced video experience
and extended capabilities.
6ThinkCentre M70s Gen 4 ThinkCentre M90s Gen 4 User Guide

Expansion
• Card reader*
• Memory slots
• M.2 solid-state drive Gen 4 slot
• Optical drive*
• Storage drive bay
M70s Gen4
• PCI-Express x1 card slots
• PCI-Express x16 graphics card slot
M90s Gen4
• PCI-Express x1 card slots
• PCI-Express x16 graphics card slot
• PCI-Express card slot (physical link idth x16; negotiable link idth x4)
Network feat res
• Bluetooth*
• Ethernet LAN
• Wireless LAN*
* for selected models
Operating environment
Maxim m altit de (witho t press rization)
• Operating: From 0 m (0 ft) to 3048 m (10 000 ft)
• Storage: From 0 m (0 ft) to 12192 m (40 000 ft)
Temperat re
• Operating: From 5°C (41°F) to 35°C (95°F)
• Storage:
– For common desktop computers: From -40°C (-40°F) to 60°C (140°F)
– For all-in-one desktop computers: From -20°C (-4°F) to 60°C (140°F)
Relative h midity
• Operating: 20%-80% (non-condensing)
• Storage: 10%–90% (non-condensing)
USB specifications
Note: Depending on the model, some USB connectors might not be available on your computer.
Chapter 1.Meet your computer 7

Connector name Description
• USB 2.0 connector
• USB 3.2 connector Gen 1
• USB 3.2 connector Gen 2
Connect USB-compatible devices, such as a USB
keyboard, USB mouse, USB storage device, or USB
printer.
• USB-C (3.2 Gen 1) connector
• USB-C (3.2 Gen 2) connector
• Charge USB-C compatible devices ith the output
voltage and current of 5 V and 3 A.
• Connect to an external display: up to 3840 × 2160
pixels, 60 Hz
• Connect to USB-C accessories to help expand your
computer functionality. To purchase USB-C
accessories, go to https:// .lenovo.com/accessories.
The Vantage app
The preinstalled Vantage app is a customized one-stop solution to help you maintain your computer ith
automated updates and fixes, configure hard are settings, and get personalized support.
To access the Vantage app, type Vantage in the Windo s search box.
Key feat res
The Vantage app enables you to:
• Kno the device status easily and customize device settings.
• Do nload and install UEFI BIOS, firm are and driver updates to keep your computer up-to-date.
• Monitor your computer health, and secure your computer against outside threats.
• Scan your computer hard are and diagnose hard are problems.
• Look up arranty status (online).
• Access User Guide and helpful articles.
Notes:
• The available features vary depending on the computer model.
• The Vantage app makes periodic updates of the features to keep improving your experience ith your
computer. The description of features might be different from that on your actual user interface.
8ThinkCentre M70s Gen 4 ThinkCentre M90s Gen 4 User Guide

Chapter 2. Get started with yo r comp ter
Connect an external display
Connect a projector or a monitor to your computer to give presentations or expand your orkspace.
Connect a wireless display
Ensure that both your computer and the ireless display support Miracast®.
Press Windo s logo key + K and then select a ireless display to connect.
Change display settings
1. Right-click a blank area on the desktop and select display settings.
2. Select the display that you ant to configure and change display settings of your preference.
Lock the comp ter
Note: Lenovo makes no comments, judgments, or arranties about the function, quality, or performance of
the locking device and security feature. You can purchase computer locks from Lenovo.
Padlock
Locking the computer cover through a padlock prevents unauthorized access to the inside of your computer.
© Copyright Lenovo 2023 9

Kensington-style cable lock
Lock your computer to a desk, table, or other fixtures through a Kensington-style cable lock.
E-lock
Your computer might have a security lock solution installed to protect the computer from unauthorized
tampering of the internal components. Using the E-Lock, you can mechanically lock or unlock the computer
cover.
To enable or disable the E-Lock:
1. Restart the computer. When the logo screen is displayed, press F1 or Fn+F1.
2. Select Sec rity ➙ Electronic Lock to enable or disable the E-lock.
3. Press F10 or Fn+F10 to save the changes and exit. Your computer ill restart automatically and then
changes take effect.
Access networks
This section helps you access net orks through connecting to a ired or ireless net ork.
10 ThinkCentre M70s Gen 4 ThinkCentre M90s Gen 4 User Guide

Connect to the wired Ethernet
Connect your computer to a local net ork through the Ethernet connector on your computer ith an
Ethernet cable.
Connect to Wi-Fi networks (for selected models)
Click the net ork icon in the Windo s® notification area, and then select a net ork for connection. Provide
required information, if needed.
• For models ith Windo s 10:
• For models ith Windo s 11:
Transfer data
Quickly share your files using the built-in Bluetooth technology among devices ith the same features. You
also can install a disc or media card to transfer data.
Connect to a Bl etooth-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. Place the device that you are attempting to connect to less than 10 meters (33
feet) from the computer.
Chapter 2.Get started ith your computer 11

1. Type Bluetooth in the Windo s search box and then press Enter.
2. Turn on Bluetooth, if it is off.
3. Select a Bluetooth device, and then follo the on-screen instructions.
Use the optical drive (for selected models)
If your computer has an optical drive, read the follo ing information.
Know the type of yo r optical drive
1. Type Device Manager in the Windo s search box and then press Enter. Type the administrator pass ord
or provide confirmation, if prompted.
2. Select an optical drive, and then follo the on-screen instructions.
Install or remove a disc
1. With the computer on, press the eject 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 push the tray back into the drive.
Note: If the tray does not slide out of the drive hen you press the eject button, turn off the computer. Then,
insert a straightened paper clip into the emergency-eject hole adjacent to the eject 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 follo ing:
• Type AutoPlay in the Windo s search box and then press Enter. Turn on Use A toPlay for all media
and devices.
• Open Windo s Media Player.
• Double-click the ISO file.
3. Follo the on-screen instructions.
Use a media card (for selected models)
If your computer has a SD-card slot, read the follo ing information.
12 ThinkCentre M70s Gen 4 ThinkCentre M90s Gen 4 User Guide

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 the card:
1. Click the triangular icon in the Windo s notification area to sho hidden icons. Right-click the icon
prompting you to safely remove hard are and eject media.
2. Select the corresponding item to eject the card from the Windo s operating system.
3. Press the card and remove it from your computer. Store the card safely for future use.
Diagnostics
Use diagnostic solutions to test hard are components and report operating-system-controlled settings that
interfere ith the correct operation of your computer.
Lenovo diagnostic tools
For information about Lenovo diagnostic tools, go to:
https://pcsupport.lenovo.com/lenovodiagnosticsolutions
The Vantage app
The Vantage app is preinstalled on your computer. To diagnose problems ith the Vantage app:
1. Type Vantage in the Windo s search box and press Enter.
2. Follo the on-screen instructions and run a hard are scan.
If you are unable to isolate and resolve the problem after running the Vantage app, save and print the log files
created by the program. You might need the log files hen you speak to a Lenovo technical support
representative.
Tro bleshooting and FAQs
This section lists online access to troubleshoot your computer and to frequently asked questions in Lenovo
forums. For more information, go to: https:// .lenovo.com/tips, or https://forums.lenovo.com.
Recovery
Use the follo ing recovery options to reset or restore your computer hen your computer comes ith
issues.
• Use Lenovo recovery options.
1. Go to https://support.lenovo.com/Ho ToCreateLenovoRecovery.
2. Follo the on-screen instructions.
• Use Windo s recovery options.
1. Go to https://pcsupport.lenovo.com.
2. Detect your computer or manually select your computer model.
3. Navigate to the troubleshooting menu to diagnose the operating system for recovery instructions.
Chapter 2.Get started ith your computer 13

14 ThinkCentre M70s Gen 4 ThinkCentre M90s Gen 4 User Guide