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Lenovo ThinkCentre M75s Gen2 User Manual

Lenovo ThinkCentre M75s Gen2
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M75s Gen 2
Hardware Maintenance Manual

Table of Contents

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Lenovo ThinkCentre M75s Gen2 Specifications

General IconGeneral
GraphicsIntegrated AMD Radeon Graphics
MemoryUp to 128GB DDR4 3200MHz (4 x UDIMM slots)
StorageUp to 2 TB 7200 RPM HDD / Up to 1 TB PCIe SSD
Operating SystemWindows 10 Pro, Windows 11 Pro
PortsUSB 3.2 Gen 2, USB-C, DisplayPort, HDMI
NetworkGigabit Ethernet, Wi-Fi 6, Bluetooth 5.1
Dimensions93mm x 298mm x 343.5mm (3.66" x 11.73" x 13.52")
WeightStarting at 5.4 kg (11.9 lbs)
Front Ports1 x Headphone/Microphone combo jack
Rear PortsUSB 3.2 Gen 2, USB-C, DisplayPort, HDMI, Ethernet, Serial Port
Expansion Slots1 x PCIe 3.0 x16, 1 x PCIe 3.0 x1, 1 x M.2
Power Supply180W, 260W

Summary

Chapter 1. Important Safety Information

General Safety

Rules to ensure general safety during maintenance.

Electrical Safety

Precautions for working on electrical equipment.

Safety Inspection Guide

Guide to identifying potentially unsafe conditions.

Handling Electrostatic Discharge-Sensitive Devices

Precautions for handling ESD-sensitive parts.

Grounding Requirements

Importance of electrical grounding for safety and system function.

Chapter 2. Important Service Information

Strategy for Replacing FRUs

Guidance on replacing Field Replaceable Units (FRUs).

Important Notice for Replacing a System Board

Precautions for handling and replacing the system board.

How to Use Error Codes

Guidance on interpreting error codes for diagnosis.

FRU Identification

How to identify Field Replaceable Units (FRUs) for products.

Chapter 3. Product Overview

Front

Illustration and labels for front panel components.

Rear

Illustration and labels for rear panel components.

Chapter 4. Service Checkout and Symptom-to-FRU Index

Service Checkout

Procedures for general system checkout and problem determination.

Problem Determination Tips

Information to assist in problem determination.

Symptom-to-FRU Index

Index of error symptoms and possible causes.

Hard Disk Drive Boot Error

Potential causes and solutions for HDD boot issues.

POST Error Codes

List of POST error codes and their meanings.

Miscellaneous Error Conditions

Troubleshooting for various error messages and symptoms.

Chapter 5. Troubleshooting, Diagnostics, and Recovery

Basic Procedure for Resolving Computer Problems

General steps to diagnose and resolve computer issues.

Startup Problems

Solutions for issues preventing the computer from starting.

Audio Problems

Troubleshooting steps for audio output issues.

Network Problems

Solutions for connectivity issues.

Performance Problems

Solutions for slow performance.

Storage Drive Problems

Troubleshooting for storage drive issues.

CD or DVD Problems

Solutions for CD/DVD drive issues.

Software Problems

Troubleshooting steps for software issues.

Diagnostics

Using diagnostic tools to test hardware components.

Recovery

Information on recovering the operating system.

Update the Device Driver

Methods for updating device drivers.

Chapter 6. Hardware Removal and Installation

Handling Static-Sensitive Devices

Precautions to avoid static-electricity damage.

Service Tool Kit

List of common tools required for servicing the computer.

System Board Replacement

Procedure for replacing the main system board.

Memory Module Installation

Procedure for installing and replacing memory modules.

Storage Drive Replacement

Procedures for replacing hard disk and SSD drives.

Power Supply Assembly Replacement

Procedure for replacing the power supply assembly.

Microprocessor Replacement

Procedure for replacing the microprocessor.

Chapter 7. Notices and Trademarks

Notices

Legal disclaimers, warranty information, and product specifications.

Trademarks

List of trademarks and logos used in the document.

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