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Lenovo ThinkCentre neo 50t Gen 3 Hardware Maintenance Manual

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  • Page 1 neo 50t Gen 3 Hardware Maintenance Manual...
  • Page 2 First Edition (December 2021) © Copyright Lenovo 2021. 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

    Beep symptoms ... . . trademarks ....71 POST error codes ... . © Copyright Lenovo 2021...
  • Page 4 Use this manual along with the advanced diagnostic tests to troubleshoot problems. Important: This manual is intended only for trained service technicians who are familiar with Lenovo computers. Use this manual along with the advanced diagnostic tests to troubleshoot problems effectively.

  • Page 5: 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 2021...

  • Page 6: Electrical Safety

    • Do not touch live electrical circuits with the reflective surface of a plastic dental mirror. The surface is conductive; such touching can cause personal injury and machine damage. ThinkCentre neo 50t Gen 3 Hardware Maintenance Manual...

  • Page 7: 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 8: Handling Electrostatic Discharge-Sensitive Devices

    • Connect to properly wired outlets any equipment that will be attached to this product. • When possible, use one hand only to connect or disconnect signal cables. • Never turn on any equipment when there is evidence of fire, water, or structural damage. ThinkCentre neo 50t Gen 3 Hardware Maintenance Manual...
  • Page 9 • Disconnect the attached power cords, telecommunications systems, networks, and modems before you open the device covers, unless instructed otherwise in the installation and configuration procedures. • Connect and disconnect cables as described in the following tables when installing, moving, or opening covers on this product or attached devices.
  • Page 10 The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source. ThinkCentre neo 50t Gen 3 Hardware Maintenance Manual...
  • Page 11 Chapter 1 Important safety information...
  • Page 12 ≥18 kg (37 lb) ≥32 kg (70.5 lb) ≥55 kg (121.2 lb) ThinkCentre neo 50t Gen 3 Hardware Maintenance Manual...
  • Page 13 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 14 O dispositivo também pode ter mais de um cabo de alimentação. Para remover toda a corrente elétrica do dispositivo, assegure que todos os cabos de alimentação estejam desconectados da fonte de alimentação. ThinkCentre neo 50t Gen 3 Hardware Maintenance Manual...
  • Page 15 Chapter 1 Important safety information...
  • Page 16 ThinkCentre neo 50t Gen 3 Hardware Maintenance Manual...
  • Page 17 Chapter 1 Important safety information...
  • Page 18 • Lorsque vous installez, que vous déplacez, ou que vous manipulez le présent produit ou des périphériques qui lui sont raccordés, reportez-vous aux instructions ci-dessous pour connecter et déconnecter les différents cordons. ThinkCentre neo 50t Gen 3 Hardware Maintenance Manual...
  • Page 19 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 20 • Die Signalkabel nach Möglichkeit einhändig anschließen oder lösen, um einen Stromschlag durch Berühren von Oberflächen mit unterschiedlichem elektrischem Potenzial zu vermeiden. • Geräte niemals einschalten, wenn Hinweise auf Feuer, Wasser oder Gebäudeschäden vorliegen. ThinkCentre neo 50t Gen 3 Hardware Maintenance Manual...
  • Page 21 • 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 22 Mit dem Netzschalter an der Einheit und am Netzteil wird die Stromversorgung für die Einheit nicht unterbrochen. Die Einheit kann auch mit mehreren Netzkabeln ausgestattet sein. Um die Stromversorgung für die Einheit vollständig zu unterbrechen, müssen alle zum Gerät führenden Netzkabel vom Netz getrennt werden. ThinkCentre neo 50t Gen 3 Hardware Maintenance Manual...
  • Page 23 Chapter 1 Important safety information...
  • Page 24 PERICOLO La corrente elettrica proveniente dai cavi di alimentazione, del telefono e di comunicazione può essere pericolosa. Per evitare il rischio di scosse elettriche: ThinkCentre neo 50t Gen 3 Hardware Maintenance Manual...
  • Page 25 • 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 26 E' possibile che l'unità disponga di più cavi di alimentazione. Per disattivare l'alimentazione dall'unità, accertarsi che tutti i cavi di alimentazione siano scollegati dalla fonte di alimentazione. ThinkCentre neo 50t Gen 3 Hardware Maintenance Manual...
  • Page 27 Chapter 1 Important safety information...
  • Page 28 • 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. ThinkCentre neo 50t Gen 3 Hardware Maintenance Manual...
  • Page 29 • 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 30 Además, el dispositivo podría tener más de un cable de alimentación. Para suprimir toda la corriente eléctrica del dispositivo, asegúrese de que todos los cables de alimentación estén desconectados de la toma de corriente. ThinkCentre neo 50t Gen 3 Hardware Maintenance Manual...

  • Page 31: 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 2021...

  • Page 32: 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 33: Chapter 3. Product Overview

    5. Power button with power indicator 6. Storage drive activity indicator 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 * for selected models © Copyright Lenovo 2021...

  • Page 34: Rear

    9. Smart cable clip slots 10. PS/2 mouse connector* 11. PS/2 keyboard connector* 12. Serial connector 13. Ethernet connector 14. Serial connector* 15. Padlock loop 16. Security-lock slot * for selected models ThinkCentre neo 50t Gen 3 Hardware Maintenance Manual...

  • Page 35: 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 2021...

  • Page 36: Symptom-To-Fru Index

    The start-up drive is not in the boot sequence in Check the configuration and ensure that the start-up drive configuration. is in the boot sequence. No operating system installed on the boot drive. Install an operating system on the boot drive. ThinkCentre neo 50t Gen 3 Hardware Maintenance Manual...

  • Page 37: 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 38: Post Error Codes

    Turn off and remove all but the reader that you set up within your main operating system. ThinkCentre neo 50t Gen 3 Hardware Maintenance Manual...

  • Page 39: Miscellaneous Error Conditions

    Miscellaneous error conditions Message/Symptom FRU/Action Changing display colors Display/Monitor Computer will not power-off. See “Hard disk drive boot 1. Power Switch error” on page 32. 2. System Board 3. Riser card, if installed. 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.

  • Page 40: Undetermined Problems

    Some or all keys on the keyboard do not work 1. Keyboard 2. Keyboard Cable 3. System Board Undetermined problems This section provides instructions on how to find out the failing devices or adapters. 1. Turn off the computer. ThinkCentre neo 50t Gen 3 Hardware Maintenance Manual...
  • Page 41 2. Remove or disconnect the following components (if installed) one at a time. a. External devices (modem, printer, or mouse) b. Any adapters c. Memory modules d. Extended video memory e. External Cache f. External Cache RAM g. Hard disk drive h.
  • Page 42 ThinkCentre neo 50t Gen 3 Hardware Maintenance Manual...

  • Page 43: Chapter 5. 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 2021...

  • Page 44: Major Frus And Crus

    • FRUs: Refer to parts that must be installed or replaced only by trained service technicians. If customers choose to replace the FRUs by themselves, the product warranty might be affected. ThinkCentre neo 50t Gen 3 Hardware Maintenance Manual...
  • Page 45 Number Description Self-service CRU Optional-service CRU Computer cover Hard disk drive* Hard disk drive cable* Optical drive bracket* Optical drive* Optical drive cable* Memory module Wi-Fi card shield* Wi-Fi card* Coin-cell battery Card reader and card reader bracket* Front I/O board bracket M.2 solid-state drive* M.2 solid-state drive heat sink* M.2 solid-state drive bracket*...
  • Page 46 For detailed FRU and CRU information, such as the FRU part numbers and supported computer models, go http://www.lenovo.com/serviceparts-lookup ThinkCentre neo 50t Gen 3 Hardware Maintenance Manual...

  • Page 47: System Board

    System board 8-pin power connector Microprocessor fan connector Memory slot (DIMM1) Memory slot (DIMM2) Buzzer Power button connector Internal speaker connector 10-pin power connector Auxiliary fan connector SATA power connectors Clear CMOS/Recovery jumper SATA 3.0 connectors M.2 solid-state drive slot M.2 Wi-Fi card slot Coin-cell battery Thermal sensor connector...

  • Page 48: External Options

    Front bezel 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. See “Computer cover” on page 44. ThinkCentre neo 50t Gen 3 Hardware Maintenance Manual...

  • Page 49: Optical Drive

    Replacement steps Optical drive 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. See “Computer cover” on page 44. 2. Remove the front bezel. See “Front bezel” on page 44. 3.
  • Page 50 Replacement steps ThinkCentre neo 50t Gen 3 Hardware Maintenance Manual...

  • Page 51: Drive Bay Assembly

    Drive bay assembly 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. See “Computer cover” on page 44. 2. Remove the front bezel. See “Front bezel” on page 44. Replacement steps Chapter 5 Hardware removal and installation...

  • Page 52: Hard Disk Drive

    3. Remove the optical drive. See “Optical drive” on page 45. 4. Remove the drive bay assembly. See “Drive bay assembly” on page 47. 5. Disconnect the signal cable and the power cable from the hard disk drive. ThinkCentre neo 50t Gen 3 Hardware Maintenance Manual...

  • Page 53: Memory Module

    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. For access, do the following: 1. Remove the computer cover. See “Computer cover” on page 44. 2.

  • Page 54: Coin-Cell Battery

    If the coin-cell battery fails, the date and time information is lost. An error message is displayed when you turn on the computer. To dispose of the coin-cell battery, refer to the “Lithium coin-cell battery notice” in the Safety and Warranty Guide. For access, do the following: ThinkCentre neo 50t Gen 3 Hardware Maintenance Manual...

  • Page 55: Pci Express Card

    1. Remove the computer cover. See “Computer cover” on page 44. 2. Remove the front bezel. See “Front bezel” on page 44. 3. Remove the drive bay assembly. See “Drive bay assembly” on page 47. Removal steps Note: After installing a new coin-cell battery, reset the system date and time in the UEFI BIOS menu. PCI Express card Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions.

  • Page 56: M.2 Solid-State Drive And The Heat Sink

    • Replace the M.2 solid-state drive only for upgrade or repair. The M.2 solid-state drive is not designed for frequent changes or replacement. • Before replacing the M.2 solid-state drive, make a backup copy of all the data that you want to keep. ThinkCentre neo 50t Gen 3 Hardware Maintenance Manual...
  • Page 57 • Do not touch the contact edge of the M.2 solid-state drive. Otherwise, the M.2 solid-state drive might get damaged. • Do not apply pressure to the M.2 solid-state drive. • Do not make the M.2 solid-state drive subject to physical shocks or vibration. Put the M.2 solid-state drive on a soft material, such as cloth, to absorb physical shocks.
  • Page 58 – Type 2 – Type 3 ThinkCentre neo 50t Gen 3 Hardware Maintenance Manual...

  • Page 59: M.2 Solid-State Drive Bracket

    Note: Remove the film that covers the thermal pad (if any) when installing the M.2 solid-state drive and the heat sink. M.2 solid-state drive bracket Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions. For access, do the following: 1.

  • Page 60: Power Supply Assembly

    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. Remove the computer cover. See “Computer cover” on page 44. ThinkCentre neo 50t Gen 3 Hardware Maintenance Manual...

  • Page 61: Wi-Fi Card

    2. Remove the front bezel. See “Front bezel” on page 44. 3. Remove the drive bay assembly. See “Drive bay assembly” on page 47. 4. Disconnect the power supply assembly cables from the system board. Removal steps Wi-Fi card Prerequisite Before you start, read Generic Safety and Compliance Notices, and print the following instructions.

  • Page 62: Internal Speaker

    2. Remove the front bezel. See “Front bezel” on page 44. 3. Remove the drive bay assembly. See “Drive bay assembly” on page 47. 4. Disconnect the internal speaker cable from the system board. ThinkCentre neo 50t Gen 3 Hardware Maintenance Manual...

  • Page 63: Thermal Sensor

    Removal steps Thermal sensor 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. See “Computer cover” on page 44. 2. Remove the front bezel. See “Front bezel” on page 44. 3.

  • Page 64: Front Fan

    2. Remove the front bezel. See “Front bezel” on page 44. 3. Remove the drive bay assembly. See “Drive bay assembly” on page 47. 4. Disconnect the front fan cable from the system board. Replacement steps ThinkCentre neo 50t Gen 3 Hardware Maintenance Manual...

  • Page 65: Rear Fan

    Rear fan 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. See “Computer cover” on page 44. 2. Remove the front bezel. See “Front bezel” on page 44. 3.

  • Page 66: Front Wi-Fi Antenna And Cable

    2. Remove the front bezel. See “Front bezel” on page 44. 3. Remove the drive bay assembly. See “Drive bay assembly” on page 47. 4. Disconnect the rear Wi-Fi antenna cable from the Wi-Fi card. See “Wi-Fi card” on page 57. ThinkCentre neo 50t Gen 3 Hardware Maintenance Manual...

  • Page 67: Front I/O Bracket And Card Reader

    Removal steps Front I/O bracket and card reader 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. See “Computer cover” on page 44. 2. Remove the front bezel. See “Front bezel” on page 44. 3.
  • Page 68 Removal steps ThinkCentre neo 50t Gen 3 Hardware Maintenance Manual...

  • Page 69: 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. 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 70: Microprocessor

    • Touch only the edges of the microprocessor. Do not touch the gold contacts on the bottom. • Do not drop anything onto the microprocessor socket while it is exposed. The socket pins must be kept as clean as possible. ThinkCentre neo 50t Gen 3 Hardware Maintenance Manual...

  • Page 71: System Board

    System board Prerequisite Before you start, read Chapter 1 “Important safety information” on page 1 and print the following instructions. 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.
  • Page 72 • Your microprocessor sockets and socket covers might look slightly different from the illustrations in this topic. • Do not touch the pins on the microprocessor socket or the gold contacts on the microprocessor. ThinkCentre neo 50t Gen 3 Hardware Maintenance Manual...
  • Page 73 Removal steps Note: The failing system board must be returned with a microprocessor socket cover to protect the pins during shipping and handling. Microprocessor socket cover installation procedure 1. After you have removed the microprocessor from the failing system board, close the microprocessor retainer.
  • Page 74 ThinkCentre neo 50t Gen 3 Hardware Maintenance Manual...

  • Page 75: Chapter 6. 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 76 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.

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