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.
• 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.) •...
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.
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• 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. •...
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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. •...
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≥18 kg (37 lb) ≥32 kg (70.5 lb) ≥55 kg (121.2 lb) M90n-1 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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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...
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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.
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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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≥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.
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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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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.
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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: M90n-1 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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• 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.
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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. •...
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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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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...
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.
– 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 –...
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.
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: •...
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.
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Message/Symptom FRU/Action 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. System Board diagnostics diskette in the first 3.5-inch diskette drive. 2. Diskette Drive Cable 3.
Message/Symptom FRU/Action Serial or parallel connector device failure (adapter 1. External Device Self-Test OK? connector) 2. External Device 3. Cable 4. Alternate Adapter 5. System Board Some or all keys on the keyboard do not work 1. Keyboard 2. Keyboard Cable 3.
4. Run the diagnostic program. See “Diagnostics” on page 46. 5. Recover your operating system. See “Recovery” on page 47. 6. If the problem persists, contact Lenovo. Troubleshooting Use the troubleshooting information to find solutions to problems that have definite symptoms.
Startup problems Problem Solution • Ensure that the power cord is correctly connected to the rear of the computer and to a working electrical outlet. • If the computer has a secondary power switch on the rear of the The computer does not start up when you computer, ensure that it is switched on.
Audio problems Problem Solution • If you are using powered external speakers that have an On/Off control, ensure that: – The On/Off control is set to the On position. – The speaker power cable is connected to a properly grounded, functional ac electrical outlet.
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Problem Solution • Connect the cable from the Ethernet connector to the RJ45 connector of the hub. • Enable the Ethernet LAN feature in UEFI BIOS. • Enable the Ethernet LAN adapter. 1. Go to Control Panel and view by large icons or small icons. 2.
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Problem Solution • Enable the wireless WAN feature in UEFI BIOS. • Enable all wireless WAN devices. 1. Right-click the Start button to open the Start context menu. 2. Click Device Manager. Type the administrator password or provide confirmation, if prompted. 3.
Performance problems Problem Solution Note: Depending on the volume of the storage drives and amount of data stored on the storage drives, the disk-defragmentation process might take up to several hours. 1. Close any open programs and windows. 2. Open the Start menu. Excessive fragmented files exist on the 3.
Storage drive problems Problem Solution • Ensure that the signal cables and power cables for all the storage drives are connected correctly. • Ensure that the computer is configured correctly to support the storage drives. Some or all storage drives are missing from –...
Use diagnostic solutions to test hardware components and report operating-system-controlled settings that interfere with the correct operation of your computer. Lenovo diagnostic tools For information about Lenovo diagnostic tools, go to: https://pcsupport.lenovo.com/lenovodiagnosticsolutions 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.
Table 1. Items on the main screen of the UEFI diagnostic program DIAGNOSTICS TOOLS • CPU test • System information • Display test • Keyboard test • Memory test • Motherboard test • Mouse test • PCI Express test • Storage test Recovery This section introduces the recovery information of the Windows 10 operating system.
Windows recovery programs are damaged. If you did not create a recovery USB drive as a precautionary measure, you can contact Lenovo Customer Support Center and purchase one from Lenovo. For a list of the Lenovo Support phone numbers for your country or region, go to: https://pcsupport.lenovo.com/supportphonelist Create a recovery USB drive Attention: The creation process deletes anything stored on the USB drive.
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• From Windows Update: Note: The device drivers provided by Windows Update might not be tested by Lenovo. It is recommended that you get device drivers from Lenovo. 1. Open the Start menu.
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: •...
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Rear Wi-Fi antenna cable* Rear Wi-Fi antenna* Wireless WAN antenna* System board Heat sink cover* * 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...
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 and power cord Prerequisite Before you start, read Chapter 2 “Important safety information” on page 27 and print the following instructions.
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4. Remove the power cord. 5. Install the power cord. 6. Install the power adapter. M90n-1 Hardware Maintenance Manual...
7. Reconnect the external cables and power adapter to the corresponding connectors on the computer, and then reconnect the power cord to the electrical outlet. Heat sink cover Prerequisite Before you start, read Chapter 2 “Important safety information” on page 27 and print the following instructions.
DIN rail bracket kit Prerequisite Before you start, read Chapter 2 “Important safety information” on page 27 and print the following instructions. Avoid contact with the hot computer. During operation, the computer becomes hot enough to burn the skin. Before you touch the computer, turn off the computer, disconnect power, and wait approximately 30 minutes for the computer to cool.
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6. Install the DIN rail bracket. 7. If you have not installed the rail, install it to a place where you want to mount the computer. Chapter 6 Hardware removal and installation...
8. Install the computer with the DIN rail bracket to the rail. 9. Reinstall all removed parts. 10. Reconnect the external cables to the corresponding connectors on the computer, and then reconnect the power cord to the electrical outlet. Note: If a locking device is available, use it to lock the computer. VESA mount bracket Prerequisite Before you start, read Chapter 2 “Important safety information”...
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4. Remove the screw that secures the VESA mount bracket to the wall mount bracket. 5. Remove the VESA mount bracket from the wall mount bracket. 6. Turn over the computer so that the bottom cover is facing up. 7. Remove the VESA mount bracket from the computer. 8.
9. Install the VESA mount bracket to the wall mount bracket. 10. Install the screw to secure the VESA mount bracket to the wall mount bracket. 11. Reinstall all removed parts. 12. Reconnect the external cables and power adapter to the corresponding connectors on the computer, and then reconnect the power cord to the electrical outlet.
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3. Remove the heat sink cover, if any. See “Heat sink cover” on page 57. 4. Remove the screw that secures the power adapter bracket to the wall mount bracket. 5. Remove the power adapter bracket from the wall mount bracket. 6.
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9. Remove the power adapter bracket from the computer. 10. Install the power adapter bracket to the computer. 11. Turn over the computer so that the bottom cover is facing down. 12. Install the power adapter into the power adapter bracket. 13.
14. Install the power adapter bracket to the wall mount bracket. 15. Install the screw to secure the power adapter bracket to the wall mount bracket. 16. Reinstall all removed parts. 17. Reconnect the external cables and power adapter to the corresponding connectors on the computer, and then reconnect the power cord to the electrical outlet.
Replacement procedure 1. Remove any media from the drives and turn off all connected devices and the computer. 2. Disconnect the power cord from the electrical outlet and disconnect all cables from the computer. 3. Remove the rear Wi-Fi antenna. 4.
Avoid contact with the hot computer. During operation, the computer becomes hot enough to burn the skin. Before you touch the computer, turn off the computer, disconnect power, and wait approximately 30 minutes for the computer to cool. Replacement procedure 1.
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Avoid contact with the hot computer. During operation, the computer becomes hot enough to burn the skin. Before you touch the computer, turn off the computer, disconnect power, and wait approximately 30 minutes for the computer to cool. Replacement procedure 1.
M.2 solid-state drives Prerequisite Before you start, read Chapter 2 “Important safety information” on page 27 and print the following instructions. Avoid contact with the hot computer. During operation, the computer becomes hot enough to burn the skin. Before you touch the computer, turn off the computer, disconnect power, and wait approximately 30 minutes for the computer to cool.
3. Install the M.2 solid-state drive. For more information about the corresponding slot for the M.2 solid- state drive, see “System board” on page 54. Note: Attach the thermal pad to the M.2 solid-state drive if you have removed one. 4.
2. Peel off the thermal pad that covers the Wi-Fi card, if any. Remove the Wi-Fi card. Note: Pay attention not to get the backup washer under the Wi-Fi card lost. 3. Install the Wi-Fi card. Note: Attach the thermal pad to the Wi-Fi card if you have removed one. 4.
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Avoid contact with the hot computer. During operation, the computer becomes hot enough to burn the skin. Before you touch the computer, turn off the computer, disconnect power, and wait approximately 30 minutes for the computer to cool. Replacement procedure 1.
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4. Install the wireless WAN card. 5. Attach the absorber and the thermal pad to the wireless WAN card. 6. Reinstall all removed parts. 7. Reconnect the external cables and power adapter to the corresponding connectors on the computer, and then reconnect the power cord to the electrical outlet. Note: If a locking device is available, use it to lock the computer.
System board and coin-cell battery Prerequisite Before you start, read Chapter 1 “Important safety information” on page 1 and print the following instructions. Avoid contact with the hot computer. During operation, the computer becomes hot enough to burn the skin. Before you touch the computer, turn off the computer, disconnect power, and wait approximately 30 minutes for the computer to cool.
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8. Remove the coin-cell battery. 9. Install the new coin-cell battery on the new system board. 10. Turn over the system board so that the coin-cell battery is facing down. 11. Route the speaker cable and the antenna cables by the cable clip, and then install the system board. 12.
Left cover and front Wi-Fi antenna cable Prerequisite Before you start, read Chapter 1 “Important safety information” on page 1 and print the following instructions. Avoid contact with the hot computer. During operation, the computer becomes hot enough to burn the skin. Before you touch the computer, turn off the computer, disconnect power, and wait approximately 30 minutes for the computer to cool.
8. Install the front Wi-Fi antenna cable. 9. Route the front Wi-Fi antenna cable by the cable clip, and then install the left cover. 10. Reinstall all removed parts. 11. Reconnect the external cables and power adapter to the corresponding connectors on the computer, and then reconnect the power cord to the electrical outlet.
7. Remove the rear Wi-Fi antenna cable. 8. Install the rear Wi-Fi antenna cable. 9. Reinstall all removed parts. 10. Reconnect the external cables and power adapter to the corresponding connectors on the computer, and then reconnect the power cord to the electrical outlet. Note: If a locking device is available, use it to lock the computer.
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Avoid contact with the hot computer. During operation, the computer becomes hot enough to burn the skin. Before you touch the computer, turn off the computer, disconnect power, and wait approximately 30 minutes for the computer to cool. Replacement procedure 1.
9. Route the front wireless WAN antenna cable by the cable clip, and then install the right cover. 10. Reinstall all removed parts. 11. Reconnect the external cables and power adapter to the corresponding connectors on the computer, and then reconnect the power cord to the electrical outlet. Note: If a locking device is available, use it to lock the computer.
7. Remove the rear wireless WAN antenna cable. 8. Install the rear wireless WAN antenna cable. 9. Reinstall all removed parts. 10. Reconnect the external cables and power adapter to the corresponding connectors on the computer, and then reconnect the power cord to the electrical outlet. Note: If a locking device is available, use it to lock the computer.
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Avoid contact with the hot computer. During operation, the computer becomes hot enough to burn the skin. Before you touch the computer, turn off the computer, disconnect power, and wait approximately 30 minutes for the computer to cool. Replacement procedure 1.
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Heat sink Prerequisite Before you start, read Chapter 1 “Important safety information” on page 1 and print the following instructions. Avoid contact with the hot computer. During operation, the computer becomes hot enough to burn the skin. Before you touch the computer, turn off the computer, disconnect power, and wait approximately 30 minutes for the computer to cool.
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12. Install the heat sink. 13. Reinstall all removed parts. 14. Reconnect the external cables and power adapter to the corresponding connectors on the computer, and then reconnect the power cord to the electrical outlet. Note: If a locking device is available, use it to lock the computer. M90n-1 Hardware Maintenance Manual...
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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.
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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.