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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.
• 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...
• 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.) •...
• 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...
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• 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.
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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...
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≥18 kg (37 lb) ≥32 kg (70.5 lb) ≥55 kg (121.2 lb) ThinkCentre neo 50t Gen 3 Hardware Maintenance Manual...
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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. •...
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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...
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• 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...
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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.
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• 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...
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• 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...
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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...
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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...
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• 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.
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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...
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• 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...
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• 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.
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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...
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.
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...
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.
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.
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...
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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.
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• 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...
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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*...
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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...
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...
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.
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...
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...
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.
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...
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.
• 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...
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• 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.
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– Type 2 – Type 3 ThinkCentre neo 50t Gen 3 Hardware Maintenance Manual...
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.
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...
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.
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...
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.
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...
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.
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...
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.
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.
• 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...
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.
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• 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...
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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.
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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.