1. Manuals
  2. Brands
  3. Lenovo Manuals
  4. Desktop
  5. ThinkCentre M80s Gen 3
  6. Maintenance manual

Lenovo ThinkCentre M80s Gen 3 Maintenance Manual

Hide thumbs Also See for ThinkCentre M80s Gen 3:
Table of Contents

Advertisement

Quick Links

Download this manual
M70s Gen 3 / M80s Gen 3 / M90s Gen 3
Hardware Maintenance Manual

Advertisement

Table of Contents
loading

Related Manuals for Lenovo ThinkCentre M80s Gen 3

Summary of Contents for Lenovo ThinkCentre M80s Gen 3

  • Page 1 M70s Gen 3 / M80s Gen 3 / M90s Gen 3 Hardware Maintenance Manual...
  • Page 2 First Edition (January 2022) © Copyright Lenovo 2022. 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-...

  • Page 3: Table Of Contents

    ....85 Lenovo diagnostic tools ... The Vantage app ....© Copyright Lenovo 2022...
  • Page 4 M70s Gen 3 / M80s Gen 3 / M90s Gen 3 Hardware Maintenance Manual...

  • Page 5: About This Manual

    Important: This manual is intended only for trained service technicians who are familiar with ThinkCentre computers. Use this manual along with the advanced diagnostic tests to troubleshoot problems effectively. Before servicing a ThinkCentre computer, be sure to read and understand Chapter 1 “Important safety information” on page 1. © Copyright Lenovo 2022...
  • Page 6 M70s Gen 3 / M80s Gen 3 / M90s Gen 3 Hardware Maintenance Manual...

  • Page 7: Chapter 1. Important Safety Information

    Avoid contact with hot components inside the computer. During operation, some components become hot enough to burn the skin. Before you open the computer cover, turn off the computer, disconnect power, and wait approximately 10 minutes for the components to cool. © Copyright Lenovo 2022...

  • Page 8: Electrical Safety

    Electrical safety CAUTION: Electrical current from power, telephone, and communication cables can be hazardous. To avoid personal injury or equipment damage, disconnect the attached power cords, telecommunication systems, networks, and modems before you open the computer covers, unless instructed otherwise in the installation and configuration procedures.

  • Page 9: Safety Inspection Guide

    • Do not service the following parts with the power on when they are removed from their normal operating places in a machine: – Power supply units – Pumps – Blowers and fans – Motor generators and similar units. (This practice ensures correct grounding of the units.) •...

  • Page 10: Handling Electrostatic Discharge-Sensitive Devices

    8. Check that the power-supply cover fasteners (screws or rivets) have not been removed or tampered with. Handling electrostatic discharge-sensitive devices Any computer part containing transistors or integrated circuits (ICs) should be considered sensitive to electrostatic discharge (ESD). ESD damage can occur when there is a difference in charge between objects. Protect against ESD damage by equalizing the charge so that the machine, the part, the work mat, and the person handling the part are all at the same charge.
  • Page 11 • Italian • Korean • Spanish DANGER Electrical current from power, telephone and communication cables is hazardous. To avoid a shock hazard: • Do not connect or disconnect any cables or perform installation, maintenance, or reconfiguration of this product during an electrical storm. •...
  • Page 12 CAUTION: When laser products (such as CD-ROMs, DVD-ROM drives, fiber optic devices, or transmitters) are installed, note the following: • Do not remove the covers. Removing the covers of the laser product could result in exposure to hazardous laser radiation. There are no serviceable parts inside the device. •...
  • Page 13 Chapter 1 Important safety information...
  • Page 14 ≥18 kg (37 lb) ≥32 kg (70.5 lb) ≥55 kg (121.2 lb) M70s Gen 3 / M80s Gen 3 / M90s Gen 3 Hardware Maintenance Manual...
  • Page 15 PERIGO A corrente elétrica proveniente de cabos de alimentação, de telefone e de comunicações é perigosa. Para evitar risco de choque elétrico: • Não conecte nem desconecte nenhum cabo ou execute instalação, manutenção ou reconfiguração deste produto durante uma tempestade com raios. •...
  • Page 16 Quando produtos a laser (como unidades de CD-ROMs, unidades de DVD-ROM, dispositivos de fibra ótica ou transmissores) estiverem instalados, observe o seguinte: • Não remova as tampas. A remoção das tampas de um produto a laser pode resultar em exposição prejudicial à...
  • Page 17 Chapter 1 Important safety information...
  • Page 18 M70s Gen 3 / M80s Gen 3 / M90s Gen 3 Hardware Maintenance Manual...
  • Page 19 Chapter 1 Important safety information...
  • Page 20 DANGER Le courant électrique provenant de l'alimentation, du téléphone et des câbles de transmission peut présenter un danger. Pour éviter tout risque de choc électrique : • Ne manipulez aucun câble et n'effectuez aucune opération d'installation, d'entretien ou de reconfiguration de ce produit au cours d'un orage.
  • Page 21 Connexion Déconnexion 1. Mettez les unités HORS TENSION. 1. Mettez les unités HORS TENSION. 2. Commencez par brancher tous les cordons sur les 2. Débranchez les cordons d'alimentation des prises. unités. 3. Débranchez les câbles d'interface des connecteurs. 3. Branchez les câbles d'interface sur des 4.
  • Page 22 ≥18 kg (37 lb) ≥32 kg (70.5 lb) ≥55 kg (121.2 lb) ATTENTION: Soulevez la machine avec précaution. ATTENTION: L'interrupteur de contrôle d'alimentation de l'unité et l'interrupteur dubloc d'alimentation ne coupent pas le courant électrique alimentantl'unité. En outre, le système peut être équipé de plusieurs cordonsd'alimentation.
  • Page 23 • Die Verbindung zu den angeschlossenen Netzkabeln, Telekommunikationssystemen, Netzwerken und Modems ist vor dem Öffnen des Gehäuses zu unterbrechen, sofern in den Installations- und Konfigurationsprozeduren keine anders lautenden Anweisungen enthalten sind. • Zum Installieren, Transportieren und Öffnen der Abdeckungen des Computers oder der angeschlossenen Einheiten die Kabel gemäß...
  • Page 24 Laserstrahlung bei geöffneter Verkleidung. Nicht in den Strahl blicken. Keine Lupen oder Spiegel verwenden. Strahlungsbereich meiden. ≥18 kg ≥32 kg ≥55 kg ACHTUNG: Arbeitsschutzrichtlinien beim Anheben der Maschine beachten. ACHTUNG: Mit dem Netzschalter an der Einheit und am Netzteil wird die Stromversorgung für die Einheit nicht unterbrochen.
  • Page 25 Chapter 1 Important safety information...
  • Page 26 PERICOLO La corrente elettrica proveniente dai cavi di alimentazione, del telefono e di comunicazione può essere pericolosa. Per evitare il rischio di scosse elettriche: M70s Gen 3 / M80s Gen 3 / M90s Gen 3 Hardware Maintenance Manual...
  • Page 27 • Non collegare o scollegare qualsiasi cavo oppure effettuare l'installazione, la manutenzione o la riconfigurazione del prodotto durante un temporale. • Collegare tutti i fili elettrici a una presa di alimentazione correttamente cablata e dotata di messa a terra. • Collegare alle prese elettriche appropriate tutte le apparecchiature che verranno utilizzate per questo prodotto.
  • Page 28 • Non rimuovere gli sportelli. L'apertura di un'unità laser può determinare l'esposizione a radiazioni laser pericolose. All'interno dell'unità non vi sono parti su cui effettuare l'assistenza tecnica. • L'utilizzo di controlli, regolazioni o l'esecuzione di procedure non descritti nel presente manuale possono provocare l'esposizione a radiazioni pericolose.
  • Page 29 Chapter 1 Important safety information...
  • Page 30 PELIGRO La corriente eléctrica procedente de cables de alimentación, teléfonos y cables de comunicación puede ser peligrosa. Para evitar el riesgo de descarga eléctrica: • No conecte ni desconecte los cables ni realice ninguna tarea de instalación, mantenimiento o reconfiguración de este producto durante una tormenta eléctrica. •...
  • Page 31 • No encienda nunca un equipo cuando hay señales de fuego, agua o daños estructurales. • Desconecte los cables de alimentación, los sistemas de telecomunicaciones, las redes y los módems conectados antes de abrir las cubiertas de los dispositivos, a menos que se indique lo contrario en los procedimientos de instalación y configuración.
  • Page 32 Algunos productos láser tienen incorporado un diodo láser de clase 3A o clase 3B. Tenga en cuenta lo siguiente: Cuando se abre, queda expuesto a radiación láser. No mire directamente al rayo láser, ni siquiera con instrumentos ópticos, y evite exponerse directamente al rayo láser. ≥18 kg ≥32 kg ≥55 kg...

  • Page 33: Chapter 2. Important Service Information

    • Do not drop a system board or apply any excessive force to it. • Avoid rough handling of any kind. • Avoid bending a system board and hard pushing to prevent cracking at each Ball Grid Array (BGA) chipset. © Copyright Lenovo 2022...

  • Page 34: How To Use Error Codes

    Dynamic Configure To Order (CTO) model This model provides the ability for a customer to configure a Lenovo solution from a Web site, and have this configuration sent to fulfillment, where it is built and shipped directly to the customer. The machine label and eSupport will load these products as the 4-character MT, 4-character model, and 2-character country code.

  • Page 35: Chapter 3. Product Overview

    5. Storage drive activity indicator* ® 6. ThinkCentre 7. Microphone connector 8. Headset connector ® 9. USB-C (3.2 Gen 1) connector 10. USB 3.2 connectors Gen 1 12. Internal speaker* 11. USB 3.2 connectors Gen 2 * for selected models © Copyright Lenovo 2022...
  • Page 36 M80s Gen 3 and M90s Gen 3 1. Optical drive eject button* 2. Optical drive activity indicator* 4. Power button and power indicator 3. SD-card slot* 5. Storage drive activity indicator 6. ThinkCentre LED 7. Microphone connector 8. Headset connector 9.
  • Page 37 Note: This headset connector does not support standalone external microphones with a TRS (3-pole) plug or headsets with an OMTP-compliant TRRS (4-pole) plug. Related topics • “Use a media card (for selected models)” on page . Chapter 3 Product overview...

  • Page 38: Rear

    Rear M70s Gen 3 2. Optional connector* 1. Audio line-out connector ™ ™ 4. DisplayPort out connectors 3. HDMI out connector 6. USB 2.0 connector (with smart power-on) 5. USB 2.0 connectors 7. Security-lock slot 8. PS/2 mouse connector* 9. PS/2 keyboard connector* 10.
  • Page 39 M80s Gen 3 and M90s Gen 3 2. Optional connector* 1. Audio line-out connector 4. DisplayPort out connectors 3. HDMI out connector 6. USB 3.2 connectors Gen 1 (with smart power-on) 5. USB 3.2 connectors Gen 1 7. Security-lock slot 8.
  • Page 40 M70s Gen 3 / M80s Gen 3 / M90s Gen 3 Hardware Maintenance Manual...

  • Page 41: Chapter 4. Service Checkout And Symptom-To-Fru Index

    • Machine type and model • Processor or hard disk drive upgrades • Failure symptom – Do diagnostics indicate a failure? – What, when, where, single, or multiple systems? – Is the failure repeatable? – Has this configuration ever worked? © Copyright Lenovo 2022...

  • Page 42: Symptom-To-Fru Index

    – If it has been working, what changes were made prior to its failing? – Is this the original reported failure? • Diagnostics version – Type and version level • Hardware configuration – Print (print screen) configuration currently in use –...

  • Page 43: Power Supply Problems

    Error FRU/Action The boot sector on the startup drive is corrupted. The drive must be formatted. Do the following: 1. Attempt to back up the data on the failing hard disk drive. 2. Using the operating system programs, format the hard disk drive.

  • Page 44: Post Error Codes

    POST error codes Each time you turn on the system, it performs a series of tests that check the operation of the system and some options. This series of tests are called the Power-On Self-Test, or POST. POST checks the following operations: •...
  • Page 45 Message/Symptom FRU/Action Computer will not RPL from server 1. Ensure that the network is in startup sequence as the first device or the first device after diskette. 2. Ensure that the network adapter is enabled for RPL. 3. Network adapter (Advise network administrator of new MAC address) ®...

  • Page 46: Undetermined Problems

    Message/Symptom FRU/Action Power-on indicator or hard disk drive in-use light not on, 1. Power switch/LED assembly but computer works correctly 2. System Board Printer problems 1. Printer 2. System Board Program loads from the hard disk with a known-good 1. Run the Setup Utility program and check the Startup diagnostics diskette in the first 3.5-inch diskette drive sequence.
  • Page 47 e. External Cache f. External Cache RAM g. Hard disk drive h. Diskette drive 3. Turn on the computer to retest the system. 4. Repeat steps 1 through 3 until you find the failing device or adapter. If all devices and adapters have been removed, and the problem continues, replace the system board. See Chapter 6 “Hardware removal and installation”...
  • Page 48 M70s Gen 3 / M80s Gen 3 / M90s Gen 3 Hardware Maintenance Manual...

  • Page 49: Chapter 5. Diagnostics

    4. Run the diagnostic program. 5. Recover your operating system. See “Self-help resources” on page 44. 6. If the problem persists, contact Lenovo. UEFI diagnostic program A UEFI diagnostic program is preinstalled on the computer. It enables you to test memory modules and internal storage devices, view system information, and check and recover bad sectors on internal storage devices.

  • Page 50: Lenovo Diagnostic Tools

    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 when you speak to a Lenovo technical support representative.
  • Page 51 • Setup Guide want. • This User Guide • Regulatory Notice Lenovo Support Web site with the latest support information of the following: • Drivers and software • Diagnostic solutions https://pcsupport.lenovo.com • Product and service warranty •...
  • Page 52 M70s Gen 3 / M80s Gen 3 / M90s Gen 3 Hardware Maintenance Manual...

  • Page 53: Chapter 6. Hardware Removal And Installation

    Common tool Isolated tweezers Common tool Hexagonal socket Common tool Silicone grease Consumable tool Polyamide tape Consumable tool Mylar tape Consumable tool Eraser Consumable tool Electrical tape Consumable tool Double-sided tape Consumable tool Conductive tape Consumable tool © Copyright Lenovo 2022...

  • Page 54: Major Frus And Crus

    Note: The silicone grease can be applied to the surfaces of the microprocessor and heat sink to eliminate air gaps. The hexagonal socket is used to pick up the antenna connectors. Major FRUs and CRUs Your computer contains the following types of CRUs and FRUs: •...
  • Page 55 Number Description Self-service CRU Optional-service Heat sink and fan assembly Memory module Coin-cell battery Microprocessor System board Chapter 6 Hardware removal and installation...
  • Page 56 Number Description Self-service CRU Optional-service Wi-Fi card* Wi-Fi card shield* M.2 solid-state drive (type 1)* M.2 solid-state drive (type 2)* M.2 solid-state drive bracket* VRM heatsink (type 1)* (only applicable for M90s Gen3) VRM heatsink (type 2)* (only applicable for M90s Gen3) Heat sink for the M.2 Solid-state drive (type 1)* Heat sink for the M.2 Solid-state drive (type 2)* Heat sink for the M.2 Solid-state drive (type 3)*...
  • Page 57 Optional-service Wi-Fi antennas* E-lock* PCI-Express card* Rear I/O shielding Thumb screws PCI-Express connector cable* Computer cover For detailed FRU and CRU information, such as the FRU part numbers and supported computer models, go http://www.lenovo.com/serviceparts-lookup Chapter 6 Hardware removal and installation...

  • Page 58: System Board

    System board M70s Gen 3 PS/2 keyboard and mouse connector 8-pin power connector Microprocessor socket Microprocessor fan connector Memory slot (DIMM1) Memory slot (DIMM2) Memory slot (DIMM3) Memory slot (DIMM4) Power button connector Internal speaker connector Auxiliary fan connector Illuminated red dot connector 10-pin power connector SATA power connectors Clear CMOS (Complementary Metal Oxide...

  • Page 59: M80S Gen 3

    M80s Gen 3 PS/2 keyboard and mouse connector 8-pin power connector Microprocessor socket Microprocessor fan connector Memory slot (DIMM1) Memory slot (DIMM2) Memory slot (DIMM3) Memory slot (DIMM4) Power button connector Internal speaker connector Illuminated red dot connector Auxiliary fan connector 10-pin power connector SATA power connectors Clear CMOS (Complementary Metal Oxide...

  • Page 60: M90S Gen 3

    M90s Gen 3 8-pin power connector PS/2 keyboard and mouse connector Microprocessor socket Microprocessor fan connector Memory slot (DIMM1) Memory slot (DIMM2) Memory slot (DIMM3) Memory slot (DIMM4) Power button connector Internal speaker connector Auxiliary fan connector 10-pin power connector SATA power connectors SATA 3.0 connectors M.2 solid-state drive slot 1...

  • Page 61: Removing And Installing Hardware

    Removing and installing hardware This section provides instructions on how to remove and install hardware for your computer. You can expand the capabilities of your computer and maintain your computer by removing or installing hardware. Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter 1 “Important safety information”...

  • Page 62: Optical Drive

    Before you open the computer cover, turn off the computer and wait several minutes until the computer is cool. For access, do the following: 1. Remove any media from the drives and turn off all connected devices and the computer. 2.
  • Page 63 Replacement procedure Chapter 6 Hardware removal and installation...

  • Page 64: Front Bezel

    Front bezel Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. For access, remove the following parts in order, if any: • “Computer cover” on page 55 • “Optical drive” on page 56 Replacement procedure M70s Gen 3 / M80s Gen 3 / M90s Gen 3 Hardware Maintenance Manual...

  • Page 65: Drive Bay Assembly

    Drive bay assembly Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. For access, remove these parts in order: • “Computer cover” on page 55 • “Optical drive” on page 56 • “Front bezel” on page 58 Replacement procedure Chapter 6 Hardware removal and installation...

  • Page 66: Hard Disk Drive

    Hard disk drive Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. Attention: The internal storage drive is sensitive. Inappropriate handling might cause damage and permanent loss of data. When handling the internal storage drive, observe the following guidelines: •...
  • Page 67 Removal steps 2.5-inch hard disk drive For access, do the following: 1. Remove these parts in order: • “Computer cover” on page 55 • “Optical drive” on page 56 • “Front bezel” on page 58 • “Drive bay assembly” on page 59 2.

  • Page 68: M.2 Solid-State Drive And Heat Sink

    Removal steps M.2 solid-state drive and heat sink Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. The heat sink might be very hot. Before you open the computer cover, turn off the computer and wait several minutes until the computer is cool.
  • Page 69 • Do not make the internal storage drive subject to physical shocks or vibration. Put the internal storage drive on a soft material, such as cloth, to absorb physical shocks. For access, remove these parts in order, if any: • “Computer cover” on page 55. •...
  • Page 70 • For computers with the heat sink for the M.2 solid-state drive，do one of the following depending on the computer model: – Type 1 – Type 2 M70s Gen 3 / M80s Gen 3 / M90s Gen 3 Hardware Maintenance Manual...

  • Page 71: M.2 Solid-State Drive Bracket

    – Type 3 Note: Remove the film that covers the thermal pad (if any) when installing the M.2 solid-state drive. M.2 solid-state drive bracket Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. For access, remove these parts in order: •...

  • Page 72: Wi-Fi Card

    Wi-Fi card Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. For access, remove these parts in order, if any: • “Computer cover” on page 55 • “Front bezel” on page 58 • “Drive bay assembly” on page 59 Removal steps Note: During installation, ensure that you connect the gray cable to the connector labeled AUX on the card, and the black cable to the connector labeled MAIN.

  • Page 73: Rear Wi-Fi Antenna

    Removal steps Rear Wi-Fi antenna Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. Removal steps Memory module Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. Ensure that you follow the installation order for memory modules shown in the following illustration. Chapter 6 Hardware removal and installation...
  • Page 74 For access, remove these parts in order: • “Computer cover” on page 55 • “Optical drive” on page 56 • “Front bezel” on page 58 • “Drive bay assembly” on page 59 Replacement procedure Note: During the installation, ensure that you align the memory module to the slot and press down on both ends until the latches are fully engaged with a click.

  • Page 75: Pci-Express Connector Cable

    PCI-Express connector cable Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. For access, do the following: 1. Remove the “Computer cover” on page 55. 2. Disconnect the cable from the system board. Removal steps PCI-Express card Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions.
  • Page 76 Notes: • Do not attempt to install any PCI-Express cards other than graphics card to slot M70s Gen 3 / M80s Gen 3 / M90s Gen 3 Hardware Maintenance Manual...

  • Page 77: Coin-Cell Battery

    • Before installing a new PCI-Express card, remove any PCI-Express connector cables that impede the installation. See “PCI-Express connector cable” on page 69. Coin-cell battery Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. Chapter 6 Hardware removal and installation...

  • Page 78: Power Supply Assembly

    Your computer has a special type of memory that maintains the date, time, and settings for built-in features, such as parallel connector assignments (configurations). A coin-cell battery keeps this information active when you turn off the computer. The coin-cell battery normally requires no charging or maintenance throughout its life; however, no coin-cell battery lasts forever.

  • Page 79: E-Lock

    Hazardous voltage, current, and energy levels are present inside any component that has this label attached. There are no serviceable parts inside these components. If you suspect a problem with one of these parts, contact a service technician. For access, do the following: 1.

  • Page 80: Internal Speaker

    Removal steps Internal speaker Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. For access, do the following: 1. Remove these parts in order: • “Computer cover” on page 55 • “Optical drive” on page 56 •...

  • Page 81: Thermal Sensor

    • “Computer cover” on page 55 • “Optical drive” on page 56 • “Front bezel” on page 58 • “Drive bay assembly” on page 59 2. Disconnect the illuminated red dot cable from the system board. Removal steps Thermal sensor Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions.

  • Page 82: Front Io Bracket And Power Button

    Front IO bracket and power button Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. For access, do the following: 1. Remove these parts in order: • “Computer cover” on page 55 • “Optical drive” on page 56 •...

  • Page 83: Card Reader And Card Reader Bracket

    Card reader and card reader bracket Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. For access, do the following: 1. Remove these parts in order: • “Computer cover” on page 55 • “Optical drive” on page 56 •...

  • Page 84: Heat Sink And Fan Assembly

    Heat sink and fan assembly Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. CAUTION: The heat sink and microprocessor might be very hot. Before you open the computer cover, turn off the computer and wait several minutes until the computer is cool. For access, do the following: 1.
  • Page 85 • Type 2 (for selected models of M90s Gen 3) Chapter 6 Hardware removal and installation...
  • Page 86 M70s Gen 3 / M80s Gen 3 / M90s Gen 3 Hardware Maintenance Manual...

  • Page 87: Microprocessor

    Microprocessor Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. CAUTION: The heat sink and microprocessor might be very hot. Before you open the computer cover, turn off the computer and wait several minutes until the computer is cool. For access, remove these FRUs in order, if any: •...
  • Page 88 The heat sink and microprocessor might be very hot. Before you open the computer cover, turn off the computer and wait several minutes until the computer is cool. For access, remove these parts in order, if any: • “Computer cover” on page 55 •...

  • Page 89: Vrm Heatsink (For Selected Models Of M90S Gen 3)

    VRM heatsink (for selected models of M90s Gen 3) Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. CAUTION: The heat sink and microprocessor might be very hot. Before you open the computer cover, turn off the computer and wait several minutes until the computer is cool.

  • Page 90: Cover Presence Switch

    Cover presence switch Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. For access, do the following: 1. “Computer cover” on page 55 2. Disconnect the cover presence switch cable from the system board. Removal steps M70s Gen 3 / M80s Gen 3 / M90s Gen 3 Hardware Maintenance Manual...

  • Page 91: Chapter 7. Notices And Trademarks

    Lenovo representative for information on the products and services currently available in your area. Any reference to a Lenovo product, program, or service is not intended to state or imply that only that Lenovo product, program, or service may be used. Any functionally equivalent product, program, or service that does not infringe any Lenovo intellectual property right may be used instead.
  • Page 92 Actual results may vary. Users of this document should verify the applicable data for their specific environment. This document is copyrighted by Lenovo and is not covered by any open source license, including any Linux agreement(s) which may accompany software included with this product. Lenovo may update this document at any time without notice.

This manual is also suitable for:

Thinkcentre m70s gen 3Thinkcentre m90s gen 311t8002sge

Table of Contents