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P720 Hardware Maintenance Manual Machine Types: 30BA, 30BB, and 30BU...
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1 “Read this first: Important safety information” on page 1 and Appendix G “Notices” on page 243. First Edition (October 2017) © Copyright Lenovo 2017. LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant to a General Services Administration “GSA”...
Page 3: Table Of Contents

Changing the display mode of the Setup Utility program ....An introduction to Lenovo programs ..Changing the display language of the Setup Utility program .
Page 4: Table Of Contents

Beep symptoms ... . . Lenovo Web site... . . 223 POST error codes ... .
Page 6: About This Manual

About this manual ® This manual provides service and reference information for ThinkStation computers listed on the front cover. 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 ThinkStation computers.
Page 7: Safety Information

• Before you start the machine, ensure that other service representatives and the customer's personnel are not in a hazardous position. • Place removed covers and other parts in a safe place, away from all personnel, while you are servicing the machine. © Copyright Lenovo 2017...
Page 8: Electrical Safety

• Keep your tool case away from walk areas so that other people will not trip over it. • Do not wear loose clothing that can be trapped in the moving parts of a machine. Ensure that your sleeves are fastened or rolled up above your elbows. If your hair is long, fasten it. •...
Page 9: Safety Inspection Guide

• Before you start to work on the machine, unplug the power cord. If you cannot unplug it, ask the customer to power-off the wall box that supplies power to the machine and to lock the wall box in the off position. •...
Page 10: Handling Electrostatic Discharge-sensitive Devices

• Electrical hazards, especially primary power (primary voltage on the frame can cause serious or fatal electrical shock). • Explosive hazards, such as a damaged CRT face or bulging capacitor • Mechanical hazards, such as loose or missing hardware The guide consists of a series of steps presented in a checklist. Begin the checks with the power off, and the power cord disconnected.
Page 11: Grounding Requirements

– Attach the ESD ground clip to any frame ground, ground braid, or green-wire ground. – Use an ESD common ground or reference point when working on a double-insulated or battery- operated system. You can use coax or connector-outside shells on these systems. –...
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To Connect To Disconnect 1. Turn everything OFF. 1. Turn everything OFF. 2. First, attach all cables to devices. 2. First, remove power cords from outlet. 3. Attach signal cables to connectors. 3. Remove signal cables from connectors. 4. Attach power cords to outlet. 4.
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≥18 kg (37 lb) ≥32 kg (70.5 lb) ≥55 kg (121.2 lb) CAUTION: Use safe practices when lifting. CAUTION: The power control button on the device and the power switch on the power supply do not turn off the electrical current supplied to the device. 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.
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P720 Hardware Maintenance Manual...
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≥18 kg (37 lb) ≥32 kg (70.5 lb) ≥55 kg (121.2 lb) Chapter 1 Read this first: Important safety information...
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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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P720 Hardware Maintenance Manual...
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Chapter 1 Read this first: Important safety information...
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P720 Hardware Maintenance Manual...
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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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P720 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: Chapter 1 Read this first: Important safety information...
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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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P720 Hardware Maintenance Manual...
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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...
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P720 Hardware Maintenance Manual...
Page 35: Chapter 2. Product Overview

Turn it 90-degree counterclockwise, and then push it back in. Optical-drive eject/close button (available on some models) Press the button to eject or close the tray of the optical drive. © Copyright Lenovo 2017...
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Insert a secure digital (SD) card into the slot to access the data on the card. Photoelectric sensor This sensor receives the flash light sent by the Lenovo PC Diagnostics application installed in the smartphone. Then, the photoelectric sensor triggers the computer to send the tune of the detected error to the smartphone for users to decode the error.
Page 37: Rear View

Rear view Some connectors on the rear of your computer are color-coded to help you determine where to connect the cables on your computer. Note: The computer hardware might look slightly different from the illustration. Figure 2. Rear view Audio line-out connector Microphone connector Optional serial connector PS/2 keyboard connector...
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Notes: *A discrete graphics card or a network adapter can be installed in the appropriate Peripheral Component Interconnect (PCI)/PCI-Express (PCIe) card slot. If such a card is installed, use the connectors on the card instead of the corresponding connectors on the computer to optimize the performance. Depending on your computer model, the preinstalled cards might vary.
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PCI/PCIe card area To further improve the computer performance, you can install PCI/PCIe cards into this area. Depending on your computer model, the pre-installed cards in this area might vary. Power-cord connector Connect the power cord to your computer for power supply. Security-lock slot Attach a Kensington-style cable lock to the security-lock slot to secure your computer.
Page 40: Computer Components

Computer components Notes: • Depending on the model, your computer might look slightly different from the illustration. • To remove the computer cover, see “Preparing your computer and removing the computer cover” on page 103. Figure 3. Component locations Heat sink and fan assemblies* Memory modules* Cover presence switch (also called intrusion switch) Flex bays*...
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Figure 4. Major FRUs and CRUs Chapter 2 Product overview...
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The following table lists the major FRUs shown in Figure 4 “Major FRUs and CRUs” on page 35 and identifies which FRUs are also self-service CRUs or optional-service CRUs. Notes: • Self-service CRUs: Refer to parts that can be installed or replaced easily by customer themselves or by trained service technicians at an additional cost.
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Wi-Fi card (available on some models) Wi-Fi antenna (available on some models) Coin-cell battery System board Memory modules Microprocessor Lenovo factory recovery USB key (available on some models) Lenovo recovery disc set (available on some models) Miscellaneous parts kits Power cord...
Page 44: Parts On The System Board

Parts on the system board Note: The system board might look slightly different from the illustration. Figure 5. System board part locations Front-audio connector Internal-speaker connector Microprocessor 2 memory slot 1 Memory fan connector 1 Microprocessor 2 memory slot 5 Microprocessor 2 memory slot 3 Microprocessor 2 memory slot 4 Microprocessor 2 memory slot 6...
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6-pin power connector 2 (for graphics card) Internal-storage-drive activity indicator connector 4-pin power connector (for storage drive) 4-pin power connector (for storage drive) Front panel connector BCA 2 connector BCA 1 connector SATA 6 connector Thunderbolt™ control connector Front USB 3.0 connector 2 Internal USB 2.0 connector USB 3.0 extended connector Front USB 3.0 connector 1...
Page 46: Internal Storage Drives

Internal storage drives Internal storage drives are devices that your computer uses to read and store data. You can add drives to your computer to increase storage capacity and enable your computer to read other types of media. Internal storage drives are installed in bays. When you remove or install an internal storage drive, note the type and size of the drive that each bay supports and correctly connect the required cables.
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You can install hard disk drives, solid-state drives, or hybrid drives in the storage drive bays. Note: If you want to install storage drives into the optional-storage-drive bays, contact the Lenovo Customer Support Center for help. Storage drive bays (2) You can install hard disk drives, solid-state drives, or hybrid drives in the storage drive bays.
Page 48: Machine Type And Model Label

Machine type and model label The machine type and model label identifies your computer. When you contact Lenovo for help, the machine type and model information helps support technicians to identify your computer and provide faster service. The following is a sample of the machine type and model label.
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3. Locate and double-click your device in Device Manager to view device properties. Type the administrator password or provide confirmation if prompted. Memory Up to 12 double data rate 4 (DDR4) error correction code (ECC) registered dual inline memory modules (RDIMMs) Storage drives Your computer supports the following storage drives:...
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• PS/2 keyboard connector • PS/2 mouse connector • USB connectors Expansion • Flex bays • Storage drive bays • M.2 solid-state drive slots • Memory slots • One PCI card slot • One PCIe 3.0 x4 card slot • One PCIe 3.0 x8 card slot •...
Page 51: Computer Specifications

Your computer is preinstalled with Windows 7 or Windows 10 operating system. Additional operating systems might be identified by Lenovo as compatible with your computer. To determine if an operating system has been certified or tested for compatibility, check the Web site of the operating system provider.
Page 52: Programs

Accessing a program on your computer Note: For Windows 7, depending on your computer model, some of the Lenovo programs might be ready to be installed, so you must install them manually. Then, you can access and use these programs.
Page 53: Installing A Program That Is Ready To Be Installed (windows 7 Only)

– Read how-to articles, explore Lenovo forums, and stay up-to-date on technology news with articles and blogs from trusted sources. Lenovo Companion is filled with exclusive Lenovo content to help you learn more about what you can do with your computer.
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• Lenovo ID (Windows 10) The Lenovo ID program enables you to create and manage your Lenovo ID. With a Lenovo ID, you can connect to everything Lenovo through a single account. Use your Lenovo ID for quick and simple authentication and then enjoy the various services provided by Lenovo.
Page 55: Chapter 3. Using Your Computer

When you register your computer with Lenovo, you enter required information into a Lenovo database. The information enables Lenovo to contact you when there is a recall or other severe problem and provide quicker service when you call Lenovo for help. In addition, some locations offer extended privileges and services to registered users.
Page 56: Playing And Removing A Disc

• To remove dust or fingerprints, wipe the disc with a clean, soft cloth from the center to the outside. Wiping the disc in a circular direction might cause loss of data. • Do not write or stick paper on the disc. •...
Page 57: Connecting To A Network

2. Open Windows Media Player. See “Accessing a program on your computer” on page 46. 3. Follow the instructions on the screen. • Burn a disc from an ISO file. 1. Insert a recordable disc into the optical drive that supports recording. 2.
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To connect to a Bluetooth-enabled device, do the following: 1. Turn on the Bluetooth feature of your computer. Ensure that the Bluetooth-enabled device is located within a distance of about 10 m (32.8 ft) from your computer. 2. Click the Bluetooth icon in the Windows notification area on the taskbar. Then, click Add a Device and follow the instructions on the screen.
Page 59: Chapter 4. You And Your Computer

For more information about power cords or power adapters, see “Power cords and power adapters” on page Comfort Although no single working position is ideal for everyone, here are a few guidelines to help you find a position that suits you best. The following figure sets an example for your reference. © Copyright Lenovo 2017...
Page 60: Accessibility Information

Accessibility information Lenovo is committed to providing users who have hearing, vision, and mobility limitations with greater access to information and technology. This section provides information about the ways these users can get the most out of their computer experience. You also can get the most up-to-date accessibility information from the following Web site: http://www.lenovo.com/accessibility...
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To use Ease of Access Center, do the following: 1. Click the Start button to open the Start menu. 2. Depending on your Windows version, do one of the following: • For Windows 7: Click Control Panel. View Control Panel by Large icons or Small icons, and then click Ease of Access Center.
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• Using PDFs with screen readers: http://www.adobe.com/accessibility.html?promoid=DJGVE • Using the JAWS screen reader: http://www.freedomscientific.com/jaws-hq.asp • Using the NVDA screen reader: http://www.nvaccess.org/ Screen resolution You can make the text and images on your screen easier to read by adjusting the screen resolution of your computer.
Page 63: Cleaning Your Computer

Then, you can type a message on your computer and send it to the telephone. Documentation in accessible formats Lenovo provides electronic documentation in accessible formats, such as properly tagged PDF files or HyperText Markup Language (HTML) files. Lenovo electronic documentation is developed to ensure that visually impaired users can read the documentation through a screen reader.
Page 64: Good Maintenance Practices

The cause of a problem might be change in hardware, change in software, or any other actions that might have taken place. A log book can help you or a Lenovo technician determines the cause of a problem. • Create Product Recovery discs. See “Recovery information” on page 91 for more information about using Product Recovery discs to restore the hard disk drive to the factory-default settings.
Page 65: Moving Your Computer

Note: The device drivers provided by Windows Update might not be tested by Lenovo. It is recommended that you get device drivers by using Lenovo programs or from the Lenovo Web site at http://www.lenovo.com/ support Moving your computer Before moving your computer, take the following precautions: 1.
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P720 Hardware Maintenance Manual...
Page 67: Copyright Lenovo

The keys for the key lock are attached to the rear of the machine. For security, store the keys in a secure place when you are not using them. Note: The key lock and keys are available only on some models. Figure 8. Padlock © Copyright Lenovo 2017...
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Figure 9. Key lock P720 Hardware Maintenance Manual...
Page 69: Attaching A Kensington-style Cable Lock

The cable lock also locks the buttons used to open the computer cover. This is the same type of lock used with many notebook computers. You can order such a cable lock directly from Lenovo by searching for Kensington at: http://www.lenovo.com/support Figure 10.
Page 70: Using Fingerprint Authentication

• For Windows 7: Use the Fingerprint Manager Pro or ThinkVantage Fingerprint Software program provided by Lenovo. To open the program, see “Accessing a program on your computer” on page 46. For more information about using the program, refer to the help system of the program.
Page 71: Using Firewalls

Your computer is preinstalled with an antivirus program to help you guard against, detect, and eliminate viruses. Lenovo provides a full version of antivirus software on your computer with a free 30-day subscription. After 30 days, you must renew the license to continue receiving the antivirus software updates.
Page 72: Computrace Agent Software Embedded In Firmware

Computrace Agent software embedded in firmware The Computrace Agent software is an IT asset management and computer theft recovery solution. The software detects if changes have been made on the computer, such as hardware, software, or the computer call-in location. You might have to purchase a subscription to activate the Computrace Agent software. Trusted Platform Module (TPM) TPM is a secure cryptoprocessor that stores cryptographic keys, which in turn protects information stored in your computer.
Page 73: Chapter 6. Advanced Configuration

Yes in the window displayed, and press Enter. Changing the display language of the Setup Utility program The Setup Utility program supports three display languages: English, French, and simplified Chinese. To change the display language of the Setup Utility program, do the following: © Copyright Lenovo 2017...
Page 74: Enabling Or Disabling A Device

Then, select Yes in the window displayed, and press Enter. Enabling or disabling the ErP LPS compliance mode Lenovo computers meet the eco-design requirements of the ErP Lot 3 regulation. For more information, go http://www.lenovo.com/ecodeclaration You can enable the ErP LPS compliance mode in the Setup Utility program to reduce the consumption of electricity when your computer is off or in sleep mode.
Page 75: Enabling Or Disabling The Configuration Change Detection

• Press the power button. • Enable the Wake Up on Alarm feature to make your computer wake up at a set time. See “Enabling or disabling the automatic power-on of your computer” on page 68. • Enable the After Power Loss feature to make your computer wake up when the power supply resumes after a sudden loss of electricity.
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You do not have to set any passwords to use your computer. However, using passwords improves computer security. If you decide to set any passwords, read the following topics. Password types The following types of passwords are available in the Setup Utility program: •...
Page 77: Selecting A Startup Device

4. Follow the instructions on the right side of the screen to set, change, or delete a password. Note: A password can be any combination of up to 64 alphabetic and numeric characters. For more information, see “Password considerations” on page 70. 5.
Page 78: Changing The Fan Speed Level

Selecting a temporary startup device Note: Not all discs and storage drives are bootable. To select a temporary startup device, do the following: 1. Depending on the type of the storage device, do one of the following: • If the storage device is internal, go to step 2. •...
Page 79: Bios Level

• To determine the currently installed BIOS level, start the Setup Utility program and view the BIOS Revision Level on the Main page. • Sources for obtaining the latest BIOS level available – Lenovo support Web site: http://www.lenovo.com/support – Lenovo Customer Support Center –...
Page 80: Configuring Raid

Configuring RAID This section provides information about storage drive requirements for RAID levels, and instructions on how to configure RAID for your computer. Depending on your computer model and configuration, you can configure RAID using one of the following utilities: •...
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Creating a RAID volume Attention: All the existing data stored on the selected drives will be erased while the RAID volume is being created. To create a RAID volume, do the following: 1. Enable RAID by doing the following: a. Start the Setup Utility program. See “Starting the Setup Utility program” on page 67. b.
Page 82: Configuration Utility

3. Under RAID Volumes, select the RAID volume that you want to delete and press Enter. The RAID VOLUME INFO window is displayed. 4. Select Delete under Volume Actions and press Enter. When prompted, select Yes and press Enter to confirm the deletion of the selected RAID volume.
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Creating a RAID volume Attention: All the existing data stored on the selected drives will be erased while the RAID volume is being created. To create a RAID volume, do the following: 1. Start the Setup Utility program. See “Starting the Setup Utility program” on page 67. 2.
Page 84: Configuring Raid With Intel Virtual Raid On Cpu

To delete a RAID volume, do the following: 1. Start the Setup Utility program. See “Starting the Setup Utility program” on page 67. 2. Select Advanced ➙ AVAGO MegaRAID Configuration Utility. 3. Select Main Menu and press Enter. 4. Select Virtual Drive Management and press Enter. 5.
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b. Select Advanced ➙ Intel(R) VMD technology and press Enter. c. Select each menu item and press Enter. Then, select Enabled and press Enter. d. Select an occupied M.2 solid-state drive slot as you need and press Enter. Then, select VMD and press Enter.
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6. To save settings and exit the Setup Utility program, press F10 or Fn+F10 (depending on the keyboard settings), select Yes in the window displayed, and press Enter. P720 Hardware Maintenance Manual...
Page 87: Troubleshooting

5. Recover your operating system. See “Recovery information” on page 91. 6. If none of these actions solve your problem, contact the Lenovo Customer Support Center. For a list of Lenovo Support phone numbers, go to http://www.lenovo.com/support/phone...
Page 88: Audio Problems

• The computer voltage matches the voltage available at the electrical outlet for your country or region. The operating system fails to start up. Solution: Ensure that the startup device sequence set in the Setup Utility program includes the device where the operating system resides.
Page 89: Cd Or Dvd Problems

Click the Levels tab and ensure that the Balance settings are set correctly. Note: If the volume icon is not displayed in the Windows notification area, add the icon to the notification area. See the Windows help system. CD or DVD problems A CD or DVD does not work.
Page 90: Intermittent Problems

The playback is slow or choppy. Solutions: • Disable any background programs, such as AntiVirus or Desktop Themes. • Ensure that video resolution is lower than 1152 x 864 pixels. A message indicating invalid disc or no disc found is displayed. Solutions: •...
Page 91: Wireless Lan Problem

• Connect the cable from the Ethernet connector to the RJ45 connector of the hub. • Enable the Ethernet LAN feature in the Setup Utility program. Refer to “Using the Setup Utility program” on page 67. • Enable the Ethernet LAN adapter. 1.
Page 92: Bluetooth Problems

• Enable the wireless LAN adapter. 1. Click the Start button to open the Start menu. 2. Depending on your Windows version, do one of the following: – For Windows 7: Click Control Panel. – For Windows 10: Click Windows System ➙ Control Panel. 3.
Page 93: Performance Problems

Note: If the volume icon is not displayed in the Windows notification area, add the icon to the notification area. See the Windows help system. 3. Click Playback devices. 4. If you are using the Headset profile, select Bluetooth Hands-free Audio, and then click Set Default. If you are using the AV profile, select Stereo Audio, and then click Set Default.
Page 94: Serial Connector Problem

• Right-click a blank area on the taskbar and open Task Manager. Then, end some tasks you are not performing. • Install additional memory modules. See Chapter 9 “Hardware removal and installation” on page 103. To purchase memory modules, go to: http://www.lenovo.com Serial connector problem The serial connector cannot be accessed. Solutions: •...
Page 95: Software And Driver Problems

• If you are unable to isolate and repair the problem yourself after running Lenovo Solution Center, save and print the log files created by the program. You need the log files when you speak to a Lenovo technical support representative.
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Note: If you are unable to isolate and repair the problem yourself after running Lenovo Companion, save and print the log files created by the program. You need the log files when you speak to a Lenovo technical support representative.
Page 97: Uefi Diagnostic Program

– If the signal diagnostic LED indicator is available on your computer, the diagnostic LED indicator blinks to indicate that an issue or error is detected. Then you can use the Lenovo PC Diagnostics application installed in your smartphone to transfer the error code from the computer to the smartphone for further analysis.
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72. 2. Follow the instructions on the screen to choose the appropriate recovery solution. • Use the recovery disc set provided by Lenovo to restore the entire storage drive to the factory-default settings. – If your computer comes with the recovery disc set, follow the instructions shipped with the disc set.
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“Selecting a temporary startup device” on page 72. Then, follow the instructions on the screen to choose the appropriate recovery solution. • Use the recovery USB key provided by Lenovo to restore the entire storage drive to the factory-default settings.
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Page 101: Chapter 8. Service Checkout And Symptom-to-fru Index

If possible, have this information available when requesting assistance from Service Support and Engineering functions. • Machine type and model • Processor or hard disk drive upgrades • Failure symptom – Do diagnostics indicate a failure? © Copyright Lenovo 2017...
Page 102: Symptom-to-fru Index

– What, when, where, single, or multiple systems? – Is the failure repeatable? – Has this configuration ever worked? – If it has been working, what changes were made prior to its failing? – Is this the original reported failure? •...
Page 103: Power Supply Problems

Error FRU/Action 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. The boot sector on the startup drive is corrupted.
Page 104: Post Error Codes

Beep symptom FRU/Action 4 long beeps: insufficient shadow RAM resources for See the detailed failure information in “POST error codes” option ROM (error code: 8998) or PCIe/PCI MMIO on page 98. (memory mapped input/output) resources (error code: 8999) 2 long and 3 short beeps: graphics card error Perform the following actions in order: 1.
Page 105: Miscellaneous Error Conditions

POST error message Description/Action Error code 1820 More than one external fingerprint This error message is displayed reader is attached. Turn off and when more than one external remove all but the reader that you set fingerprint reader is connected to up within your main operating the computer.
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Message/Symptom FRU/Action ® Computer will not perform a Wake On LAN (if applicable) 1. Check the power supply and signal cable connections to the network adapter. 2. Ensure that the operating system settings are set to enable Wake on LAN. 3.
Page 107: Undetermined Problems

Message/Symptom FRU/Action 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. 2. Diskette Drive 3. Diskette Drive Cable 4. System Board 5.
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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 “System board” on page 211. P720 Hardware Maintenance Manual...
Page 109: Chapter 9. Hardware Removal And Installation

1. Remove any media from the drives and turn off all attached devices and the computer. Then, disconnect all power cords from electrical outlets and disconnect all cables that are connected to the computer. 2. Unlock any locking device that secures the computer cover. See “Locking your computer” on page 61. © Copyright Lenovo 2017...
Page 110: Removing And Installing Hardware

• When installing or replacing an option, use the appropriate instructions in this section along with the instructions that come with the option. • In most areas of the world, Lenovo requires the return of the defective CRU. Information about this will come with the CRU or will come a few days after the CRU arrives.
Page 111: Device In The Flex Bay

Then, use the instructions that come with the option to help you make the connection and install any required software or device drivers. Device in the flex bay Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter 1 “Read this first: Important safety information”...
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4. To install an optical drive, do the following: a. If you are installing an optical drive into a flex bay with a plastic shield installed, press the clip as shown to remove the plastic shield. If there is a metal static shield installed in the flex bay, remove the metal static shield.
Page 113: Storage Drive In The Front-access Storage Enclosure

b. Press the tabs toward each other as shown, and slide the new optical drive halfway into the bay from the front of the computer. Then, release the tabs and continue to slide the optical drive into the bay until it snaps into position. Figure 14.
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The storage drive in the front-access storage enclosure can be hot-swappable. When both of the following requirements are met, you can remove or install the drive without even turning off your computer. • The SATA cable of the front-access storage enclosure is connected to the eSATA connector on the system board.
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4. To remove the 3.5-inch storage drive, flex both sides of the bracket to remove the 3.5-inch storage drive from the bracket. Figure 18. Removing the 3.5-inch storage drive from the bracket 5. To install a new 3.5-inch storage drive, flex both sides of the bracket and align pins on the bracket with the corresponding holes in the new drive.
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6. Slide the bracket with the new 3.5-inch storage drive into the front-access storage enclosure until it snaps into position. Press the notch to secure the enclosure cover and lock the enclosure cover with the key. Figure 20. Installing the 3.5-inch storage drive into the front-access storage enclosure What to do next: •...
Page 117

a. Flex both sides of the bracket to remove the 2.5-inch storage drive from the bracket. Figure 23. Removing the 2.5-inch storage drive from the bracket b. Lift the tab of the metal bracket and push the metal bracket with force as shown. Then slide the bracket and remove it from the plastic frame.
Page 118

a. Carefully flex both sides of the metal bracket and align the four tabs on the metal bracket with the corresponding holes in the new storage drive. Note: Ensure that the connectors of the storage drive face toward the tab of the metal bracket. Figure 26.
Page 119

c. Push the metal bracket down until the tab is slightly curved. Then, push the bracket with the storage drive forward as shown until the tab snaps into position. Figure 28. Installing the metal bracket into the plastic frame of the converter d.
Page 120: Device In The Multi-drive Conversion Kit

6. Slide the plastic bracket with the new 2.5-inch storage drive into the front-access storage enclosure until it snaps into position. Press the notch to secure the enclosure cover and lock the enclosure cover with the key. Figure 30. Installing the bracket with the 2.5-inch storage drive into the front-access storage enclosure What to do next: •...
Page 121

a. Press the clip through the hole in the top of the kit as shown and push forward the slim optical drive. Then, remove the slim optical drive out of the kit. Figure 31. Removing the slim optical drive from the kit b.
Page 122

b. Insert the new slim optical drive into the kit until you hear a click. The slim optical drive is secured in place. Figure 34. Installing the slim optical drive into the kit 5. Slide the kit into the flex bay and reconnect the cables. What to do next: •...
Page 123

4. Press both clips simultaneously toward each other and pull the conversion bracket out of the rear of the kit. Figure 36. Removing the conversion bracket from the kit 5. Flex both sides of the conversion bracket and then remove the 3.5-inch storage drive out of the bracket. Do not touch the circuit board on the drive.
Page 124

a. Remove pins and reinstall them into slots Figure 38. Removing pins and reinstalling them into slots b. Release tabs , and from the corresponding slots. Figure 39. Releasing tabs from the corresponding slots P720 Hardware Maintenance Manual...
Page 125

c. Unfold the bracket as shown. Figure 40. Unfolding the bracket d. Insert tabs , and into the corresponding slots. Ensure that the tabs are secured in place. Figure 41. Inserting tabs into the corresponding slots Chapter 9 Hardware removal and installation...
Page 126

7. To install a 3.5-inch storage drive into the conversion bracket, do the following: a. Flex both sides of the bracket and align pins , and on the bracket with the corresponding holes in the new 3.5-inch storage drive. b. Install the new 3.5-inch storage drive into the bracket. Do not touch the circuit board on the drive.
Page 127

9. Pivot the rear cover of the kit inward until you hear a click. Ensure that the rear cover is secured in place. Figure 44. Pivoting the rear cover inward 10. Slide the kit into the flex bay and reconnect the cables. What to do next: •...
Page 128

4. Press both clips simultaneously toward each other and pull the conversion bracket out of the rear of the kit. Figure 46. Removing the conversion bracket from the kit 5. To remove the 2.5-inch storage drive, flex both sides of the conversion bracket and then remove the drive out of the bracket.
Page 129

b. Pivot the bracket as shown to release tabs , and from the slots. Figure 49. Pivoting the bracket c. Fold the bracket as shown. Figure 50. Folding the bracket Chapter 9 Hardware removal and installation...
Page 130

d. Insert tabs , and into the corresponding slots. Ensure that the tabs are secured in place. Figure 51. Inserting the tabs into the corresponding slots 7. To install a 2.5-inch storage drive into the conversion bracket, do the following: a.
Page 131: Flex-bay Bracket

8. Slide the new 2.5-inch storage drive with bracket into the kit from the rear until the drive snaps into position. Figure 53. Installing the new 2.5-inch storage drive with bracket into the kit 9. Pivot the rear cover of the kit inward until you hear a click. Ensure that the rear cover is secured in place. Figure 54.
Page 132

3. To remove the flex-bay bracket, do the following: a. Press the retaining clip on the top of the flex-bay bracket. b. Pivot the bracket outward from the rear to remove it from the computer chassis. Figure 55. Removing the flex-bay bracket 4.
Page 133: Cover Presence Switch

b. Pivot the flex-bay bracket inward as shown until it snaps into position. Figure 57. Installing the flex-bay bracket 5. Reinstall the device that is removed from the bracket. What to do next: • To work with another piece of hardware, go to the appropriate section. •...
Page 134

c. Slide the cover presence switch as shown to remove it from the computer chassis. Figure 58. Removing the cover presence switch 4. To install a new cover presence switch, do the following: a. Align the two notches in the new cover presence switch with the two tabs on the computer chassis. Then, push the new cover presence switch inward until it is seated securely between the tabs.
Page 135: Inch Storage Drive In The Storage Drive Bay

3.5-inch storage drive in the storage drive bay A 3.5-inch storage drive on your computer might be a 3.5-inch hard disk drive or a 3.5-inch hybrid drive. Depending on your computer model, one of the following types of storage drive bracket is used in the storage drive bay: Figure 60.
Page 136

b. Flex both sides of the bracket to remove the storage drive from the bracket. Figure 62. Removing the storage drive from the type bracket 4. To install a 3.5-inch storage drive in a type bracket, do the following: a. Open the handles on both sides of the storage drive bracket, and pull out the empty bracket. b.
Page 137

5. Slide the bracket with the new storage drive into the storage drive bay. Figure 64. Installing the type storage drive bracket 6. Connect the signal cable and the power cable to the new storage drive, and then close the handles on both sides of the bracket.
Page 138

4. To remove a storage drive from the type bracket, flex both sides of the bracket to remove the storage drive from the bracket. Figure 66. Removing the storage drive from the type bracket 5. To install a new storage drive in the type bracket, flex both sides of the bracket and align pins the bracket with the corresponding holes in the drive.
Page 139

6. Slide the bracket with the new storage drive into the storage drive bay until it snaps into position. Figure 68. Installing the type storage drive bracket What to do next: • To work with another piece of hardware, go to the appropriate section. •...
Page 140

a. Open the handles on both sides of the storage drive bracket. Disconnect the cables from the storage drive, and pull out the bracket with the storage drive. Figure 70. Removing the type storage drive bracket b. Flex both sides of the bracket to remove the 2.5-inch storage drive from the bracket. Note: If a 3.5-inch storage drive also is installed in the bracket, remove the 3.5-inch storage drive first.
Page 141

b. Flex both sides of the bracket and align pins on the bracket with the corresponding holes in the new storage drive. Note: If you are installing a 2.5-inch hard disk drive, ensure that the circuit board faces downward and the connectors face toward the front of the bracket.
Page 142

To remove or install a 2.5-inch storage drive in a type bracket, do the following: 1. Prepare your computer. See “Preparing your computer and removing the computer cover” on page 103. 2. Locate the storage drive bay. See “Internal storage drives” on page 40. 3.
Page 143

5. To install a new storage drive in a type bracket, flex both sides of the bracket and align pins on the bracket with the corresponding holes in the drive. Note: If you are installing a 2.5-inch hard disk drive, ensure that the circuit board faces downward and the connectors face toward the rear of the bracket.
Page 144: Inch Storage Drive With A Converter In The Storage Drive Bay

What to do next: • To work with another piece of hardware, go to the appropriate section. • To complete the installation or replacement, go to “Completing the parts replacement” on page 220. 2.5-inch storage drive with a converter in the storage drive bay Depending on your computer model, one of the following types of storage drive bracket is used in the storage drive bay: Figure 78.
Page 145

b. Flex both sides of the bracket to remove the converter from the bracket. Figure 80. Removing the converter from the type bracket c. Lift the tab of the metal bracket and push the metal bracket with force as shown. Then slide the bracket and remove it from the plastic frame.
Page 146

c. Carefully flex both sides of the metal bracket and align the four tabs on the metal bracket with the corresponding holes in the new storage drive. Note: Ensure that the connectors of the storage drive face toward the tab of the metal bracket. Figure 83.
Page 147

e. Push the metal bracket down until the tab is slightly curved. Then, push the bracket with the storage drive forward as shown until the tab snaps into position. Figure 85. Installing the metal bracket into the plastic frame of the converter f.
Page 148

5. Slide the storage drive bracket with the converter into the storage drive bay. Figure 87. Installing the type storage drive bracket 6. Connect the signal cable and the power cable to the converter, and then close the handles on both sides of the storage drive bracket.
Page 149

4. To remove a 2.5-inch storage drive with a converter in a type bracket, do the following: a. Flex both sides of the bracket to remove the converter from the bracket. Figure 89. Removing the converter from the type bracket b.
Page 150

b. Carefully flex both sides of the metal bracket and align the four tabs on the metal bracket with the corresponding holes in the new storage drive. Note: Ensure that the connectors of the storage drive face toward the tab of the metal bracket. Figure 92.
Page 151

d. Push the metal bracket down until the tab is slightly curved. Then, push the bracket with the storage drive forward as shown until the tab snaps into position. Figure 94. Installing the metal bracket into the plastic frame of the converter e.
Page 152: M.2 Solid-state Drive

6. Slide the storage drive bracket with the converter into the storage drive bay until it snaps into position. Figure 96. Installing the type storage drive bracket What to do next: • To work with another piece of hardware, go to the appropriate section. •...
Page 153

4. To remove the M.2 solid-state drive holder, pull and pivot the tab on the front fan assembly as shown to open the latch inside . Slightly pivot the metal sheet to release the M.2 solid-state drive holder Then, grasp the M.2 solid-state drive holder by its top edge and gently pull it out of the M.2 solid-state drive slots Figure 97.
Page 154

6. To remove the M.2 solid-state drive, do the following: a. Loosen the screw that secures the M.2 solid-state drive b. Remove the M.2 solid-state drive with the screw holder from the M.2 solid-state drive slot c. Remove the screw holder from the M.2 solid-state drive Figure 99.
Page 155

b. Align the notch in the screw holder with the corresponding notch in the M.2 solid-state drive. Insert the screw holder onto the new M.2 solid-state drive as shown. Figure 101. Inserting the screw holder onto the M.2 solid-state drive c.
Page 156

d. Tighten the screw to secure the new M.2 solid-state drive. Note: Do not overtighten the screw. Figure 103. Securing the M.2 solid-state drive 8. To install the M.2 solid-state drive heat sink, do the following: a. If necessary, remove the film that protects the thermal pad on the heat sink. b.
Page 157

c. Press the mounting stud downward and turn the mounting stud 90-degree clockwise to secure the heat sink to the M.2 solid-state drive holder. Figure 105. Securing the heat sink to the M.2 solid-state drive holder 9. To install the M.2 solid-state drive holder, align the notches on the M.2 solid-state drive holder with the slot keys in the M.2 solid-state drive slot.
Page 158

M.2 solid-state drive in an M.2 solid-state drive PCIe adapter Install M.2 solid-state drives in the alphabetic order as shown. Figure 107. M.2 solid-state drive installation order To remove or install an M.2 solid-state drive in the M.2 solid-state drive PCIe adapter, do the following: 1.
Page 159

3. Loosen the screws that secure the M.2 solid-state drive heat sink. Then, remove the heat sink as shown. Figure 109. Removing the heat sink 4. To remove the M.2 solid-state drive, pull the handle of the retention latch outward to release the M.2 solid-state drive.
Page 160

a. If necessary, move the retention latch to an appropriate location to suit the length of the new M.2 solid-state drive. Figure 111. Adjusting the location of the retention latch on the PCIe adapter b. If necessary, remove the film on the thermal pad on which you want to install the M.2 solid-state drive.
Page 161

d. Hold the new M.2 solid-state drive by its edges and ensure that the circuit board side is facing upward. Align the notch in the new M.2 solid-state drive with the slot key in the M.2 slot. Insert the drive into the corresponding slot on the PCIe adapter until it is firmly seated. Then, insert the plug of the retention latch into the hole to secure the new drive.
Page 162: Power Supply Assembly

7. Install the cover as shown. Then, slide the cover latches to the locked position. Figure 115. Closing the cover 8. Install the M.2 solid-state drive PCIe adapter in a PCIe x16 card slot on the system board. See “Parts on the system board”...
Page 163

DANGER Disconnect all power cords from electrical outlets before removing the computer cover or any part that has the above label attached. DO NOT disassemble components that have the above label attached. There are no serviceable parts inside these components. Your product is designed for safe use.
Page 164: Pcie Card

4. To install a new power supply, insert the new power supply assembly with the handle open into the chassis. Then, pivot the handle as shown to fully install the new power supply assembly into position. Note: When pivoting the handle to the closed position, push hard if you feel resistance. Figure 117.
Page 165

Install PCIe cards according to the corresponding slot types and the following illustrated installation order: Note: If your computer has only one microprocessor installed, only some PCIe card slots are usable. Figure 118. PCIe card installation order Notes: • The instructions on how to remove or install a PCIe card also applies to the PCI card. •...
Page 166

b. Gently pull the PCIe card retainer out of the slot in the front fan assembly and then remove the card retainer from the PCIe card latch. Note: The PCIe card retainer is only available on some models. Figure 120. Removing the PCIe card retainer 4.
Page 167

a. Lift the plastic PCIe card latch at the rear of the computer. Then, pivot the latch outward to rest it on the edge of the rear panel. Figure 121. Opening the PCIe card latch b. If the PCIe card is connected to another device, disconnect the cable from the card first. Chapter 9 Hardware removal and installation...
Page 168

c. If the old PCIe card is held in place by a retaining latch, press the card retaining latch as shown to disengage the latch. Then grasp the card and gently pull it out of the slot. Note: The card might fit tightly into the slot. If necessary, alternately move each side of the card a small amount until the card is removed from the slot.
Page 169

b. Lift the plastic PCIe card latch at the rear of the computer. Then, pivot the latch outward to rest it on the edge of the rear panel. Figure 123. Opening the PCIe card latch c. Remove the appropriate metal slot cover. Install the new card into the appropriate slot on the system board.
Page 170: Full-length Pcie Card

6. To install a PCIe card retainer, insert the corresponding end of the PCIe card retainer into the gaps in the PCIe card latch as shown. Pivot the retainer downward to insert the part into the corresponding slot in the front fan assembly. Then, pivot the tab on the front fan assembly to close the latch inside. Figure 124.
Page 171

3. Lift the plastic PCIe card latch at the rear of the computer. Then, pivot the latch outward to rest it on the edge of the rear panel. Figure 125. Opening the PCIe card latch 4. Pull and pivot the tab on the front fan assembly as shown to open the latch inside. Figure 126.
Page 172

5. To remove a full-length PCIe card, disconnect the power cable from the card first. Press the card retaining latch as shown to disengage the latch, and grasp the old card and gently pull it out of the slot. Notes: •...
Page 173: Super Capacitor Module

• To work with another piece of hardware, go to the appropriate section. • To complete the installation or replacement, go to “Completing the parts replacement” on page 220. Super capacitor module Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter 1 “Read this first: Important safety information”...
Page 174

b. Disconnect the super-capacitor-module cable from the RAID adapter. Then, remove the holder with the failing super capacitor module. Figure 129. Removing the super capacitor module 4. To install a new super capacitor module, do the following: a. Touch the static-protective package that contains the new super capacitor module and its holder to any unpainted surface on the outside of the computer.
Page 175: Front Fan Assembly

d. Insert the corresponding end of the holder into the gaps in the PCIe card latch as shown. Pivot the holder downward to insert the part into the corresponding slot in the front fan assembly. Then, pivot the tab on the front fan assembly to secure the holder. Figure 131.
Page 176

a. Pull the front fan assembly by the handle to slide it out of the computer chassis. Note: When you slide out the front fan assembly, avoid pulling the front-fan-assembly cable. Figure 132. Removing the front fan assembly b. Disconnect the front-fan-assembly cable from the front-fan-assembly connector on the system board.
Page 177: Rear Fan Assembly

c. Ensure that the front fan assembly is securely seated. Figure 134. Ensuring that the front fan assembly is securely seated 5. Reinstall the M.2 solid-state drive holder, any full-length PCIe cards, the PCIe card retainer, and the super capacitor module if you have removed them. What to do next: •...
Page 178

b. Press the rear fan assembly as shown and remove it from the chassis. Figure 135. Removing the rear fan assembly 4. To install a new rear fan assembly, do the following: P720 Hardware Maintenance Manual...
Page 179

a. Align the two tabs on the new rear fan assembly with the two corresponding slots in the computer chassis. Figure 136. Positioning the rear fan assembly Chapter 9 Hardware removal and installation...
Page 180: Memory Module

b. Pivot the new rear fan assembly toward the rear panel as shown until it snaps into position. Figure 137. Installing the rear fan assembly c. Connect the rear-fan-assembly cable to the rear-fan-assembly connector on the system board. See “Parts on the system board” on page 38. What to do next: •...
Page 181

• Always install DIMMs in the following order as illustrated: Figure 138. Memory module installation order To remove or install a memory module, do the following: 1. Prepare your computer. See “Preparing your computer and removing the computer cover” on page 103. 2.
Page 182

7. To remove the memory module, open the retaining clips and gently pull the memory module out of the memory slot. Figure 140. Removing a memory module 8. To install a memory module, do the following: a. Open the retaining clips of the memory slot into which you want to install the memory module. Figure 141.
Page 183

b. Position the new memory module over the memory slot. Ensure that the notch on the memory module aligns correctly with the slot key on the system board. Push the memory module straight down into the slot until the retaining clips close. Figure 142.
Page 184: Coin-cell Battery

b. Pivot the other end of the memory air baffle downward. Ensure that the two notches on the other end of the memory air baffle fit into the gaps between memory slots. Figure 144. Pivoting the other end of the memory air baffle downward c.
Page 185

Your computer has a special type of memory that maintains the date, time, and settings for built-in features, such as parallel-connector assignments (configuration). 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 battery lasts forever.
Page 186: Wi-fi Units

Wi-Fi units Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter 1 “Read this first: Important safety information” on page 1. The Wi-Fi units include a Wi-Fi adapter, a Wi-Fi card, and a Wi-Fi antenna. To remove or install the Wi-Fi units, do the following: 1.
Page 187

3. If your computer comes with a Wi-Fi card that supports the Bluetooth function, disconnect the Bluetooth cable from the Wi-Fi adapter. Figure 149. Disconnecting the Bluetooth cable 4. To remove the Wi-Fi adapter, do the following: Chapter 9 Hardware removal and installation...
Page 188

a. Lift the plastic PCIe card latch at the rear of the computer. Then, pivot the latch outward to rest it on the edge of the rear panel. Figure 150. Opening the PCIe card latch P720 Hardware Maintenance Manual...
Page 189

b. Grasp the Wi-Fi adapter that is installed and gently pull it out of the slot. Note: The card might fit tightly into the slot. If necessary, alternately move each side of the card a small amount until the card is removed from the slot. Figure 151.
Page 190

6. To install a new Wi-Fi card, do the following: a. Insert the Wi-Fi card into the mini PCIe slot on the Wi-Fi adapter. b. Install the two screws to secure the Wi-Fi card to the Wi-Fi adapter. c. Connect the two Wi-Fi antenna cables to the Wi-Fi card. Figure 153.
Page 191: Device In The 5.25-inch Flex Module

8. If the installed Wi-Fi card supports the Bluetooth function, connect a Bluetooth cable to the Wi-Fi adapter. Note: The Bluetooth cable connects the Bluetooth connector on the Wi-Fi adapter to the 15-in-1 card reader connector on the system board. See “Parts on the system board” on page 38. 9.
Page 192

15-in-1 card reader To remove or install a card reader in the flex module, do the following: 1. Prepare your computer. See “Preparing your computer and removing the computer cover” on page 103. 2. Disconnect the card reader cable from the 15-in-1 card reader connector on the system board. See “Parts on the system board”...
Page 193

b. Flex the four clips on the sides of the card-reader retaining bracket to remove the card reader from the bracket. Figure 158. Removing the card reader from the card-reader retaining bracket 6. To install a new card reader, do the following: a.
Page 194

7. Position the flex module cover on the flex module. Ensure that the rail guides on the bottom of the cover engage the rails on the flex module. Then, push the cover to the front of the flex module until it snaps into position.
Page 195

4. Lift the clip on the rear of the flex module and slide the flex module cover to the rear to remove the cover. Figure 162. Removing the flex module cover 5. Press the two clips toward each other as shown and then pull the eSATA connector or IEEE 1394 connector out of the flex module.
Page 196

a. Note the orientation of the eSATA connector or IEEE 1394 connector and route the eSATA connector or IEEE 1394 connector cable into the cable clip. b. Place the eSATA connector or IEEE 1394 connector into the metal retainer. Then insert the eSATA connector or IEEE 1394 connector into the corresponding slot in the flex module as shown.
Page 197

Four-digit diagnostics display To remove or install a four-digit diagnostics display in the flex module, do the following: 1. Prepare your computer. See “Preparing your computer and removing the computer cover” on page 103. 2. Disconnect the four-digit-diagnostics-display cable from the four-digit-diagnostics-display connector on the system board.
Page 198

a. If necessary, remove the dummy bezel. Press the two clips toward each other as shown and push the dummy bezel out of the flex module. Figure 168. Removing the dummy bezel b. Insert the four-digit-diagnostics-display cable into the corresponding slot. Then, push the four-digit diagnostics display as shown until it snaps into position.
Page 199

7. Position the flex module cover on the flex module. Ensure that the rail guides on the bottom of the cover engage the rails on the flex module. Then, push the cover to the front of the flex module until it snaps into position.
Page 200

4. Lift the clip on the rear of the flex module, and then slide the flex module cover to the rear of the flex module. Figure 171. Removing the flex module cover 5. To remove a front Thunderbolt I/O adapter, do the following: a.
Page 201

a. If necessary, remove the dummy bezel. Then install the bezel in the front Thunderbolt adapter kit to the flex module. Figure 174. Installing the bezel to the flex module b. Align the four holes in the front Thunderbolt I/O adapter with the corresponding mounting studs on the bracket.
Page 202

c. Hold the clip on the retaining bracket. Then insert the front Thunderbolt I/O adapter and the retaining bracket into the flex module as shown until they snap into position. Figure 176. Installing the front Thunderbolt adapter and the retaining bracket into the flex module 7.
Page 203

9. Route the cables through the two holes in the rear of the flex module. Position the flex module cover on the flex module. Ensure that the rail guides on the bottom of the cover engage the rails on the flex module.
Page 204

3. Lift the clip on the rear of the flex module and slide the flex module cover to the rear to remove the cover. Figure 179. Removing the flex module cover 4. To remove a slim optical drive, do the following: a.
Page 205

a. Press the two metal clips to remove the plastic clip with the two screws as shown and remove the two screws. Figure 182. Removing the plastic clip with the two screws b. Install the two screws to secure the plastic clip on the rear of the new slim optical drive. Figure 183.
Page 206: Storage Drives In Optional Storage Drive Bays

6. Position the flex module cover on the flex module. Ensure that the rail guides on the bottom of the cover engage the rails on the flex module. Then, push the cover to the front of the flex module until it snaps into position.
Page 207

4. To remove a storage drive from the storage drive bracket, see the relevant description in “3.5-inch storage drive in the storage drive bay” on page 129, “2.5-inch storage drive in the storage drive bay” on page 133, or “2.5-inch storage drive with a converter in the storage drive bay” on page 138. 5.
Page 208

7. Depending on whether you are installing a storage drive in a type storage drive bracket or a type storage drive bracket, do either of the following: • For the type storage drive bracket, see the relevant description in “3.5-inch storage drive in the storage drive bay”...
Page 209: Heat-sink-and-fan Assembly

• To work with another piece of hardware, go to the appropriate section. • To complete the installation or replacement, go to “Completing the parts replacement” on page 220. Heat-sink-and-fan assembly Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter 1 “Read this first: Important safety information”...
Page 210

Figure 190. Removing the heat-sink-and-fan assembly 1 Figure 191. Removing the heat-sink-and-fan assembly 2 c. Carefully remove the heat-sink-and-fan assembly to avoid any possible damage to the system board. Notes: • The four screws cannot be removed from the heat-sink-and-fan assembly. •...
Page 211

7. Apply appropriate amount of thermal grease to the following area on the bottom of the new heat-sink- and-fan assembly. Figure 192. Applying thermal grease to the new heat-sink-and-fan assembly 8. Install the microprocessor retainer with the microprocessor to the new heat-sink-and-fan assembly. See “Microprocessor”...
Page 212

Figure 193. Installing the heat-sink-and-fan assembly 1 Figure 194. Installing the heat-sink-and-fan assembly 2 10. Connect the heat-sink-and-fan assembly cable to the microprocessor fan connector on the system board. See “Parts on the system board” on page 38. 11. Reinstall the flex-bay bracket if necessary. What to do next: •...
Page 213: Microprocessor

Microprocessor Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter 1 “Read this first: Important safety information” on page 1. Depending on the model, your computer might come with one or two microprocessors. For computer models with one microprocessor, the microprocessor is installed in the microprocessor socket 1.
Page 214

a. Release two retaining clips at the corner of the microprocessor retainer and then release the other two retaining clips as shown. Then, lift the retainer with the microprocessor from the heat-sink- and-fan assembly. Set the heat-sink-and-fan assembly aside. Notes: •...
Page 215

b. Flex both sides of the retainer downward to release the microprocessor from the retainer . Then, lift the microprocessor off the retainer Notes: • Your microprocessor might look different from the one illustrated. • Touch only the edges of the microprocessor. Do not touch the gold contacts. Figure 196.
Page 216

c. Remove the protective cover that protects the gold contacts on the bottom of the new microprocessor. Do not touch the pins on the microprocessor socket or the gold contacts on the bottom of the new microprocessor. Figure 198. Do not touch the pins d.
Page 217: System Board

e. Apply appropriate amount of thermal grease on the heat-sink-and-fan assembly if necessary. Position the microprocessor retainer with the microprocessor on the new heat-sink-and-fan assembly. Insert two retaining clips of the retainer into the corresponding holes in the heat-sink-and- fan assembly .
Page 218

1. Prepare your computer. See “Preparing your computer and removing the computer cover” on page 103. 2. Lay the computer on its side for easier access to the system board. 3. To get access to the system board, remove the following parts: •...
Page 219

6. Position the new system board in the chassis. Align the mounting studs on the bottom of the system board with the corresponding holes in the chassis. Then, push the new system board toward the rear of the computer until it snaps into position. Ensure that the system board is secured by the metal retainer. Note: The number of mounting studs on the system board on your computer might be different from the illustration.
Page 220: Vroc Upgrade Key Module

To install the microprocessor socket cover, position the microprocessor socket cover on the microprocessor socket as shown. Then, lower the socket cover straight down into the microprocessor socket on the system board. Figure 203. Installing the microprocessor socket cover What to do next: •...
Page 221: Front Panel I/o Cable

6. Remove the VROC upgrade key module as shown. Figure 204. Removing the VROC upgrade key module 7. Note the orientation of the new VROC upgrade key module. Install the VROC upgrade key module to the VROC header on the system board. See “Parts on the system board” on page 38. Figure 205.
Page 222

• “PCIe card” on page 158 • “Full-length PCIe card” on page 164 • “Memory module” on page 174 • “Flex-bay bracket” on page 125 • “Front fan assembly” on page 169 • “Rear fan assembly” on page 171 • “Power supply assembly” on page 156 •...
Page 223

c. Use a screwdriver to slightly lever the clips that secure the front panel I/O cable. Remove the front panel I/O cable from the metal bracket. Figure 207. Removing the front panel I/O cable from the metal bracket 7. To install a new front panel I/O cable, do the following: a.
Page 224: Internal Speaker

b. Install the front panel I/O cable with bracket into the chassis and fasten it to the chassis with the screw. Figure 209. Installing the screw to secure the front panel I/O cable bracket c. Route the front panel I/O cable along the slot at the bottom of the chassis and bind the cable with cable ties.
Page 225

a. Use a screwdriver to slightly lever up the internal speaker. Then, remove the internal speaker from the retaining tabs. Figure 210. Removing the internal speaker b. Record the cable routing and remove any cable ties that are binding the internal speaker cable to the chassis.
Page 226: Completing The Parts Replacement

What to do next: • To work with another piece of hardware, go to the appropriate section. • To complete the installation or replacement, go to “Completing the parts replacement” on page 220. Completing the parts replacement CAUTION: After replacing a CRU, reinstall all protective covers, including the computer cover, before connecting power and operating the computer.
Page 227

3. Position the computer cover on the chassis, align the slots on both the top and the bottom of the cover with the corresponding little posts on the chassis. Note: Keep the handle on the cover latch lifted before you finish reinstalling the computer cover. Figure 212.
Page 228

4. Pivot the lifted handle on the cover latch inward as shown to the closed position so that the computer cover is secured in position. Figure 213. Reinstalling the computer cover 5. Place the computer in an upright position. 6. If there is any locking device available, lock the computer cover. See “Locking your computer” on page 7.
Page 229: Chapter 10. Getting Information Help, And Service

Chapter 10. Getting information, help, and service This chapter provides information about getting help and support from Lenovo. Information resources You can use the information in this section to access useful resources relating to your computing needs. Accessing the user guide in various languages To access the user guide in various languages, go to: http://www.lenovo.com/support...
Page 230: Frequently Asked Questions

• Engineering Change management - There might be changes that are required after a product has been sold. Lenovo or your reseller will make selected Engineering Changes (ECs) that apply to your hardware available.
Page 231: Using Other Services

For technical assistance with the installation of or questions related to Service Packs for your preinstalled Microsoft Windows product, go to . You also can contact the Lenovo Customer http://support.microsoft.com Support Center for help. Some fees might apply. Purchasing additional services During and after the warranty period, you can purchase additional services.
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Page 233: Appendix A. System Memory Speed

2400 MT/s. • The microprocessor models supported in your computer might vary. For a list of supported microprocessor models, contact the Lenovo Customer Support Center. Refer to the following information about the system memory modules: • DIMM type and speed: DDR4 ECC RDIMM •...
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Page 235: Information About The Ubuntu Operating System

The LLW also is preinstalled on the computer. To access the LLW, go to the following directory: /usr/share/doc/lenovo-doc If you cannot view the LLW either from the Web site or from your computer, contact your local Lenovo office or reseller to obtain a printed version of the LLW.
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Page 237: Appendix C. Regulatory Information

• Consult an authorized dealer or service representative for help. Lenovo is not responsible for any radio or television interference caused by using other than specified or recommended cables and connectors or by unauthorized changes or modifications to this equipment.
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EU wireless module declarations are available at the following Internet address: http://www.lenovo.com/ eu-doc-workstations Lenovo cannot accept responsibility for any failure to satisfy the protection requirements resulting from a non-recommended modification of the product, including the installation of option cards from other manufacturers.
Page 239: Eurasian Compliance Mark

Dieses Gerät ist berechtigt, in Übereinstimmung mit dem Deutschen EMVG das EG-Konformitätszeichen - CE - zu führen. Verantwortlich für die Konformitätserklärung nach Paragraf 5 des EMVG ist die Lenovo (Deutschland) GmbH, Meitnerstr. 9, D-70563 Stuttgart. Informationen in Hinsicht EMVG Paragraf 4 Abs. (1) 4: Das Gerät erfüllt die Schutzanforderungen nach EN 55024 und EN 55032 Klasse B.
Page 240: Mexico Wireless-radio Compliance Information

All regulatory notices are available on the Lenovo Support Web site in electronic format. To access electronic copies of the documentation, go to http:// www.lenovo.com/support...
Page 241: Appendix D. Weee And Recycling Information

Collecting and recycling a disused Lenovo computer or monitor If you are a company employee and need to dispose of a Lenovo computer or monitor that is the property of the company, you must do so in accordance with the Law for Promotion of Effective Utilization of Resources.
Page 242: Recycling Information For Brazil

If you need to replace it with a new one, contact your place of purchase or contact Lenovo for service. If you need to dispose of a disused lithium battery, insulate it with vinyl tape, contact your place of purchase or an industrial-waste-disposal operator, and follow their instructions.
Page 243: Battery Recycling Information For The European Union

If the battery needs to be replaced, contact your place of purchase or contact Lenovo for service. If you need to dispose of a lithium battery, insulate it with vinyl tape, contact your place of purchase or a waste-disposal operator, and follow their instructions.
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For more information about Lenovo worldwide compliance on RoHS, go to: www.lenovo.com/rohs-communication China RoHS Turkish RoHS The Lenovo product meets the requirements of the Republic of Turkey Directive on the Restriction of the Use of Certain Hazardous Substances in Waste Electrical and Electronic Equipment (WEEE). © Copyright Lenovo 2017...
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Ukraine RoHS India RoHS RoHS compliant as per E-Waste (Management) Rules. Taiwan RoHS P720 Hardware Maintenance Manual...
Page 247: Appendix F. Energy Star Model Information

For more information about ENERGY STAR, go to: http://www.energystar.gov Lenovo encourages you to make efficient use of energy an integral part of your day-to-day operations. To help in this endeavor, set the following power-management features to take effect when your computer has been inactive for a specified duration: Table 2.
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4. Follow the instructions on the screen. P720 Hardware Maintenance Manual...
Page 249: Appendix G. Notices

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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Trademarks The following terms are trademarks of Lenovo in the United States, other countries, or both: Lenovo The Lenovo logo ThinkStation The ThinkStation logo ThinkVantage Microsoft, Windows, and Windows Media are trademarks of the Microsoft group of companies. Intel, Thunderbolt, and Xeon are trademarks of Intel Corporation in the U.S. and/or other countries.

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