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M75q Gen 5
Hardware Maintenance Manual

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Summary of Contents for Lenovo 12RQ001NUS

  • Page 1 M75q Gen 5 Hardware Maintenance Manual...
  • Page 2 First Edition (June 2024) © Copyright Lenovo 2024. 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 Recover from a BIOS update failure ..trademarks ....71 Clear CMOS ....© Copyright Lenovo 2024...
  • Page 4 M75q Gen 5 Hardware Maintenance Manual...
  • Page 5 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 2024...
  • Page 6 M75q Gen 5 Hardware Maintenance Manual...
  • Page 7 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 2024...
  • Page 8 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 – Power supply units – Pumps – Blowers and fans – Motor generators and similar units. (This practice ensures correct grounding of the units.) • If an electrical accident occurs: – Use caution; do not become a victim yourself. – Switch off power. –...
  • Page 10 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 • 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. • Connect all power cords to a properly wired and grounded electrical outlet. •...
  • Page 12 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) M75q Gen 5 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 PRECAUCIÓN: 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 M75q Gen 5 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 • Geräte niemals einschalten, wenn Hinweise auf Feuer, Wasser oder Gebäudeschäden vorliegen. • 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. •...
  • Page 24 Einige Lasergeräte enthalten eine Laserdiode der Klasse 3A oder 3B. Beachten Sie Folgendes: 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. M75q Gen 5 Hardware Maintenance Manual...
  • Page 27 Per evitare il rischio di scosse elettriche: • 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.
  • Page 28 Quando vengono installati prodotti laser (quali CD-ROM, unità DVD-ROM, unità a fibre ottiche o trasmittenti), tener presente quanto segue: • 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. •...
  • 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 • Cualquier equipo que se conecte a este producto también debe conectarse a tomas de corriente debidamente cableadas. • Siempre que sea posible, utilice una sola mano para conectar o desconectar los cables de señal. • No encienda nunca un equipo cuando hay señales de fuego, agua o daños estructurales. •...
  • Page 32 PELIGRO 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 • 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 2024...
  • Page 34 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 ® 1. ThinkCentre 2. Power button with power indicator ® 3. Storage drive activity indicator 4. USB-C connector (USB 10Gbps) 5. USB-A connector (USB 10Gbps, Always On USB) 6. USB-A connector (USB 10Gbps) 7. Headset connector © Copyright Lenovo 2024...
  • Page 36 Rear 1. Security-lock slot 2. Optional connectors* ® 3. Wi-Fi antenna slot* 4. Ethernet connector 5. USB-A connectors (Hi-Speed USB) 6. USB-A connector (USB 5Gbps) (with smart power-on feature) ™ 7. HDMI out connector 8. USB-A connector (USB 10Gbps) ™ 9.
  • Page 37 • 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 2024...
  • Page 38 – 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 39 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 40 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 41 POST error message Description/Action Error code 8998 Not enough shadow RAM resources This error message is displayed for OPTION ROM, not all devices when the shadow RAM resources initialized. Suggest to remove some for option ROM are insufficient. add-on cards, or change to UEFI If the legacy option ROM is mode in BIOS setup.
  • Page 42 Message/Symptom FRU/Action Blank screen except for flashing cursor. 1. System Board 2. Primary Hard Disk Drive 3. Hard Disk Drive Cable Incorrect memory size during POST 1. Run the Memory tests. 2. Memory Module 3. System Board "Insert a Diskette" icon appears with a known-good 1.
  • Page 43 Message/Symptom FRU/Action Serial or parallel connector device failure (system board 1. External Device Self-Test OK? connector) 2. External Device 3. Cable 4. System Board Serial or parallel connector device failure (adapter 1. External Device Self-Test OK? connector) 2. External Device 3.
  • Page 44 Note: Depending on the computer model, the recovery process will take two to three minutes. 8. Disconnect all power cords from electrical outlets. 9. Move the jumper back to the standard position. 10. Reinstall all the parts that have been removed. Then, reconnect the power cords for the computer and the monitor to electrical outlets.
  • Page 45 3. Go to “” on page and follow the instructions for the type of problem you are experiencing. 4. Run the diagnostic program. 5. Recover your operating system. 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 46 Note: The options on the main screen might vary, depending on the hardware configuration and the UEFI diagnostic program version preinstalled on the computer. Lenovo diagnostic tools For information about Lenovo diagnostic tools, go to: https://pcsupport.lenovo.com/lenovodiagnosticsolutions Self-help resources Use the following self-help resources to learn more about the computer and troubleshoot problems.
  • Page 47 • 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 48 M75q Gen 5 Hardware Maintenance Manual...
  • Page 49 Screw driver: Phillips Head 01 1, Shank length greater than 6 ThinkStation/DT Common tool inches Screw driver: Phillips Head 02 2, Shank length greater than 6 ThinkStation/SC/DT Common tool inches Screw driver: Torx Head T5 IdeaPad Common tool © Copyright Lenovo 2024...
  • Page 50 Tool name Specific Product scope Tool type Screw driver: Torx Head T15 T15, for Chassis outside ThinkStation Common tool Screw driver: Torx Head T20 T20, Shank length greater than ThinkStation Common tool 6 inches, for heatsink and CPU Screw driver: Torx Head T30 T30, Shank length greater than ThinkStation Common tool...
  • Page 51 Tool name Specific Product scope Tool type Eraser Consumable Electrical tape Consumable Double sided tape Consumable Conductive tape Consumable Cleaning pads/wipes Consumable Heat gun Special Tool (Depot only) Brown brush 25 mm to 35 mm wide Special tool Contact Cleaner Spray WD-40 Contact Cleaner for ThinkPad X1 Carbon Special tool...
  • Page 52 Number Description Self-service CRU Optional-service CRU Computer cover ThinkCentre LED cable Heat sink System fan Microprocessor System board Internal speaker Wi-Fi card* Wi-Fi card shield* Memory module M.2 solid-state drive* M75q Gen 5 Hardware Maintenance Manual...
  • Page 53 Power adapter Power cord Vertical stand* Mouse* Keyboard* ® VESA mount bracket* * for selected models 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 54 System board illustration Description Description Item Item Clear CMOS (Complementary Metal Oxide Board-to-Board connector Semiconductor)/Recovery jumper Microprocessor socket Memory slot (DIMM1) Memory slot (DIMM2) ThinkCentre LED connector System fan connector Power button switch Cover presence switch connector (intrusion Internal speaker connector switch connector) M.2 solid-state drive slots (2) M.2 Wi-Fi card slot...
  • Page 55 connector. Then, use the instructions that come with the option to help you make the connection and install any required software or device drivers. Power adapter bracket Prerequisite Before you start, read Generic Safety and Compliance Notices and print the following instructions. Before you open the computer cover, turn off the computer and wait several minutes until the computer is cool.
  • Page 56 M75q Gen 5 Hardware Maintenance Manual...
  • Page 57 Vertical stand Prerequisite Before you start, read Generic Safety and Compliance Notices and print the following instructions. 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 58 Removal step VESA mount bracket Prerequisite Before you start, read Generic Safety and Compliance Notices and print the following instructions. 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 59 Screw (quantity) Torque Color M3 x 6 mm, Zn coated(2) Black 1.5 ± 0.2 lb/in Dust shield Prerequisite Before you start, read Generic Safety and Compliance Notices and print the following instructions. Before you open the computer cover, turn off the computer and wait several minutes until the computer is cool.
  • Page 60 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 61 Removal steps Computer cover Prerequisite Before you start, read Generic Safety and Compliance Notices and print the following instructions. 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 62 Removal steps Screw (quantity) Torque Color M4 x 5 mm, Zi coated(1) Black 5 ± 0.1 lb/in Note: If a locking device is available, use it to lock the computer. Board-to-Board module Prerequisite Before you start, read Generic Safety and Compliance Notices and print the following instructions. Before you open the computer cover, turn off the computer and wait several minutes until the computer is cool.
  • Page 63 Screw (quantity) Torque Color M3 x 4 mm, Zn coated(1) Black 3 ± 0.5 lb/in M3 x 5 mm, Zn coated(1) Black 3 ± 0.5 lb/in Internal speaker Prerequisite Before you start, read Generic Safety and Compliance Notices and print the following instructions. Before you open the computer cover, turn off the computer and wait several minutes until the computer is cool.
  • Page 64 For access, do the following: 1. Remove these parts in order, if any: • “Computer cover” on page 55 • “Internal speaker” on page 57 2. Disconnect the system fan cable from the system fan connector on the system board. Removal steps ThinkCentre LED cable Prerequisite...
  • Page 65 For access, remove these parts in order, if any: • “Computer cover” on page 55 • “Internal speaker” on page 57 • “System fan” on page 57 Removal step Wi-Fi card Prerequisite Before you start, read Generic Safety and Compliance Notices and print the following instructions. Before you open the computer cover, turn off the computer and wait several minutes until the computer is cool.
  • Page 66 Screw (quantity) Torque Color M2 x 3.8 mm, Nickel coated(1) Silver 1.5 ± 0.5 lb/in Memory module Prerequisite Before you start, read Generic Safety and Compliance Notices and print the following instructions. Before you open the computer cover, turn off the computer and wait several minutes until the computer is cool.
  • Page 67 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. M.2 solid-state drive thermal pad Prerequisite Before you start, read Generic Safety and Compliance Notices and print the following instructions. Before you open the computer cover, turn off the computer and wait several minutes until the computer is cool.
  • Page 68 Before you open the computer cover, turn off the computer and wait several minutes until the computer is cool. 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 69 Removal steps Rear Wi-Fi antenna Prerequisite Before you start, read Generic Safety and Compliance Notices and print the following instructions. 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 70 • “External Wi-Fi antenna” on page 54 • “Computer cover” on page 55 2. Remove any media from the drives and turn off all connected devices and the computer. 3. Disconnect all power cords from electrical outlets and disconnect all cables from the computer. 4.
  • Page 71 Removal steps Torque Screw (quantity) Color M3 x 3.5 mm, Zi coated(1) Black 2.5 ± 0.5 lb/in M3 x 5 mm, Nickel coated(1) Silver 5 ± 0.5 lb/in Heat sink Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. The heat sink might be very hot.
  • Page 72 Removal steps Torque Screw (quantity) Color M3 x 13 mm, Nickel coated(4) Silver 3.0 ± 0.5 lb/in Microprocessor Prerequisite Before you start, read Generic Safety and Compliance Notices and print the following instructions. CAUTION: Avoid contact with hot components inside the computer. During operation, some components become hot enough to burn the skin.
  • Page 73 Removal steps Note: Before you attach the CPU to the computer, clean all thermal grease that has been used and then apply new thermal grease. Apply new thermal grease at an amount of 0.65 grams, on the parts marked shown in the following illustrations. Either too much or too less application of grease can cause a thermal problem due to imperfect contact with a component.
  • Page 74 • Each computer has a unique Vital Product Data (VPD) code stored in the nonvolatile memory on the system board. After you replace the system board, the VPD must be updated. • Your microprocessor sockets and socket covers might look slightly different from the illustrations in this topic.
  • Page 75 Removal steps Torque Screw (quantity) Color M3 x 5 mm, Zi coated(3) Blue 5± 0.5 lb/in M3 x 7 mm, Zi coated(1) Silver 5± 0.5 lb/in M3 x 11.5 mm, Zi coated(1) Blue 5± 0.5 lb/in When installing: Clean all thermal grease that have been used and then apply new thermal grease if needed. Microprocessor socket cover installation procedure The failing system board must be returned with a microprocessor socket cover to protect the pins during shipping and handling.
  • Page 76 M.2 solid-state drive bracket Prerequisite Before you start, read Generic Safety and Compliance Notices and print the following instructions. 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: •...
  • Page 77 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 78 Furthermore, some measurements may have been estimated through extrapolation. 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.

This manual is also suitable for:

Thinkcentre m75q gen 5