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Lenovo ThinkStation E31 Hardware Maintenance Manual
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Lenovo ThinkStation E31 Hardware Maintenance Manual

Lenovo ThinkStation E31 Hardware Maintenance Manual

Hardware maintenance manual (hmm) (june 2012) - thinkstation e31 (type 2551, 2552, 2553, 2554, 2555)
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ThinkStation
Hardware Maintenance Manual
Machine Types: 2551, 2552, 2553, 2554, 2555, 3688, 3690, 3691,
3693, and 3695

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Summary of Contents for Lenovo ThinkStation E31

  • Page 1 ThinkStation Hardware Maintenance Manual Machine Types: 2551, 2552, 2553, 2554, 2555, 3688, 3690, 3691, 3693, and 3695...
  • Page 3 ThinkStation Hardware Maintenance Manual Machine Types: 2551, 2552, 2553, 2554, 2555, 3688, 3690, 3691, 3693, and 3695...
  • Page 4 “Important Safety Information” on page 1 and Appendix A “Notices” on page 171. First Edition (June 2012) © Copyright Lenovo 2012. LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant a General Services Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No. GS-35F-05925.

  • Page 5: Table Of Contents

    Lenovo Solution Center ... Selecting or changing the startup device Lenovo Welcome....sequence ....
  • Page 6 Locating major FRUs and CRUs ..Removing and reinstalling the front bezel . . Looking up FRU information ..Accessing the system board components and drives ....Locating parts on the system board .

  • Page 7: Chapter 1. About This Manual

    This manual is intended only for trained service personnel who are familiar with Lenovo computer products. Before servicing a Lenovo computer product, be sure to read Chapter 2 “Safety information” on page 3. Chapter 8 “Symptom-to-FRU Index” on page 63 and Chapter 12 “Additional service information” on page 167 are not specific to any machine type.
  • Page 8 ThinkStation Hardware Maintenance Manual...

  • Page 9: Chapter 2. Safety Information

    Observe the following rules when working on electrical equipment. © Copyright Lenovo 2012...
  • Page 10 Important: Use only approved tools and test equipment. Some hand tools have handles covered with a soft material that does not insulate you when working with live electrical currents. Many customers have, near their equipment, rubber floor mats that contain small conductive fibers to decrease electrostatic discharges. Do not use this type of mat to protect yourself from an electric shock.

  • Page 11: Voltage-Selection Switch

    Voltage-selection switch Some computers are equipped with a voltage-selection switch located near the power-cord connection point on the computer and some computers do not have a voltage-selection switch. Before you install your computer or relocate your computer to another country or region, you must be certain that you have matched your computer to the voltage available at your electrical outlet.

  • Page 12: Handling Electrostatic Discharge-Sensitive Devices

    3. Check the power cord for: a. A third-wire ground connector in good condition. Use a meter to measure third-wire ground continuity for 0.1 ohm or less between the external ground pin and frame ground. b. The power cord should be the appropriate type as specified in the parts listings. c.
  • Page 13 • English • Arabic • Brazilian/Portuguese • Chinese (simplified) • Chinese (traditional) • French • German • Hebrew • Italian • Korean • Spanish DANGER Electrical current from power, telephone and communication cables is hazardous. To avoid a shock hazard: •...
  • Page 14 it only with the same module type made by the same manufacturer. The battery contains lithium and can explode if not properly used, handled, or disposed of. Do not: • Throw or immerse into water • Heat to more than 100°C (212°F) •...
  • Page 15 Chapter 2 Safety information...
  • Page 16 ≥18 kg (37 lbs) ≥32 kg (70.5 lbs) ≥55 kg (121.2 lbs) ThinkStation Hardware Maintenance Manual...
  • Page 17 PERIGO A corrente elétrica proveniente de cabos de alimentação, de telefone e de comunicações é perigosa. Para evitar risco de choque elétrico: • Não conecte nem desconecte nenhum cabo ou execute instalação, manutenção ou reconfiguração deste produto durante uma tempestade com raios. •...
  • Page 18 Não: • Jogue ou coloque na água • Aqueça a mais de 100°C (212°F) • Conserte nem desmonte Descarte a bateria conforme requerido pelas leis ou regulamentos locais. PRECAUCIÓN: Quando produtos a laser (como unidades de CD-ROMs, unidades de DVD-ROM, dispositivos de fibra ótica ou transmissores) estiverem instalados, observe o seguinte: •...
  • Page 19 Chapter 2 Safety information...
  • Page 20 ThinkStation Hardware Maintenance Manual...
  • Page 21 Chapter 2 Safety information...
  • Page 22 DANGER Le courant électrique provenant de l'alimentation, du téléphone et des câbles de transmission peut présenter un danger. Pour éviter tout risque de choc électrique : • Ne manipulez aucun câble et n'effectuez aucune opération d'installation, d'entretien ou de reconfiguration de ce produit au cours d'un orage.
  • Page 23 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 connecteurs. 4.
  • Page 24 ≥18 kg (37 lbs) ≥32 kg (70.5 lbs) ≥55 kg (121.2 lbs) ATTENTION: Soulevez la machine avec précaution. ATTENTION: L'interrupteur de contrôle d'alimentation de l'unité et l'interrupteur dubloc d'alimentation ne coupent pas le courant électrique alimentantl'unité. En outre, le système peut être équipé de plusieurs cordonsd'alimentation.
  • Page 25 • Die Verbindung zu den angeschlossenen Netzkabeln, Telekommunikationssystemen, Netzwerken und Modems ist vor dem Öffnen des Gehäuses zu unterbrechen, sofern in den Installations- und Konfigurationsprozeduren keine anders lautenden Anweisungen enthalten sind. • Zum Installieren, Transportieren und Öffnen der Abdeckungen des Computers oder der angeschlossenen Einheiten die Kabel gemäß...
  • Page 26 Laserstrahlung bei geöffneter Verkleidung. Nicht in den Strahl blicken. Keine Lupen oder Spiegel verwenden. Strahlungsbereich meiden. ≥18 kg (37 lbs) ≥32 kg (70.5 lbs) ≥55 kg (121.2 lbs) ACHTUNG: Arbeitsschutzrichtlinien beim Anheben der Maschine beachten. ACHTUNG: Mit dem Netzschalter an der Einheit und am Netzteil wird die Stromversorgung für die Einheit nicht unterbrochen.
  • Page 27 Chapter 2 Safety information...
  • Page 28 PERICOLO La corrente elettrica proveniente dai cavi di alimentazione, del telefono e di comunicazione può essere pericolosa. Per evitare il rischio di scosse elettriche: • Non collegare o scollegare qualsiasi cavo oppure effettuare l'installazione, la manutenzione o la riconfigurazione del prodotto durante un temporale. •...
  • Page 29 • Se possibile, utilizzare solo una mano per collegare o scollegare i cavi di segnale. • Non accendere assolutamente apparecchiature in presenza di incendi, perdite d'acqua o danno strutturale. • Scollegare i cavi di alimentazione, i sistemi di telecomunicazione, le reti e il modem prima di aprire i coperchi del dispositivo, salvo istruzioni contrarie relative alle procedure di installazione e configurazione.
  • Page 30 PERICOLO Alcune unità laser contengono un diodo laser di Classe 3A o Classe 3B. Tener presente quanto segue: Aprendo l'unità vengono emesse radiazioni laser. Non fissare il fascio, non guardarlo direttamente con strumenti ottici ed evitare l'esposizione al fascio. ≥18 kg (37 lbs) ≥32 kg (70.5 lbs) ≥55 kg (121.2 lbs) ATTENZIONE:...
  • Page 31 Chapter 2 Safety information...
  • Page 32 PELIGRO La corriente eléctrica procedente de cables de alimentación, teléfonos y cables de comunicación puede ser peligrosa. Para evitar el riesgo de descarga eléctrica: • No conecte ni desconecte los cables ni realice ninguna tarea de instalación, mantenimiento o reconfiguración de este producto durante una tormenta eléctrica. •...
  • Page 33 • 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. • Conecte y desconecte los cables, como se describe en la tabla siguiente, cuando instale, mueva o abra las cubiertas de este producto o de los dispositivos conectados.
  • Page 34 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 (37 lbs) ≥32 kg (70.5 lbs) ≥55 kg (121.2 lbs)

  • Page 35: Chapter 3. General Information

    – Low range: Minimum: 100 V ac Maximum: 127 V ac Input frequency range: 50 to 60 Hz – High range: Minimum: 200 V ac Maximum: 240 V ac Input frequency range: 50 to 60 Hz © Copyright Lenovo 2012...

  • Page 36: For Machine Types: 3688, 3690, 3691, 3693, And 3695

    To access the Lenovo ThinkVantage Tools program, click Start ➙ All Programs ➙ Lenovo ThinkVantage Tools. The following table lists the programs that you can access from the Lenovo ThinkVantage Tools program. To access a program, double-click the corresponding icon.

  • Page 37: Lenovo Solution Center

    The Lenovo Solution Center program enables you to troubleshoot and resolve computer problems. It combines diagnostic tests, system information collection, security status, and support information, along with hints and tips for maximum system performance. See “Lenovo Solution Center” on page 52 for detailed information.

  • Page 38: Additional Information Resources

    Note: If the Enhanced Backup and Restore icon in the Lenovo ThinkVantage Tools program is dimmed, it indicates that you need to install the ThinkVantage Rescue and Recovery program manually before enabling its features. To install the ThinkVantage Rescue and Recovery program, do the following: 1.

  • Page 39: Chapter 4. General Checkout

    Service Support and Engineering functions. • Machine type and model • Processor or hard disk drive upgrades • Failure symptom – Do diagnostics indicate a failure? – What, when, where, single, or multiple systems? – Is the failure repeatable? © Copyright Lenovo 2012...
  • Page 40 – Has this configuration ever worked? – If it has been working, what changes were made prior to it failing? – Is this the original reported failure? • Diagnostics version – Type and version level • Hardware configuration – Print (print screen) configuration currently in use –...

  • Page 41: Chapter 5. Troubleshooting And Diagnostics

    Note: If you cannot correct the problem, have the computer serviced. For a list of service and support telephone numbers, refer to the ThinkStation Safety and Warranty Guide that comes with your computer or go to the Lenovo Support Web site at http://www.lenovo.com/support/phone. Symptom...

  • Page 42: Troubleshooting Procedure

    • If the diagnostic programs detect a hardware failure, contact the Lenovo Customer Support Center. See “Additional information resources” on page 32 for more information. • If you are unable to run the diagnostic programs, contact the Lenovo Customer Support Center. See “Additional information resources” on page 32 for more information.

  • Page 43: Audio Problems

    Select the problem your computer is experiencing from the following list: • “Audio problems” on page 37 • “CD problems” on page 38 • “DVD problems” on page 39 • “Intermittent problems” on page 40 • “Hard disk drive problems” on page 41 •...

  • Page 44: Cd Problems

    If these actions do not correct the problem, run the diagnostic programs (see “Lenovo Solution Center” on page 52 for instructions). If you need technical assistance, see “Additional information resources” on page 32. An audio disc or AutoPlay-enabled disc does not automatically play when it is...

  • Page 45: Dvd Problems

    Note that on some models the startup sequence is permanently set and cannot be changed. If these actions do not correct the problem, run the diagnostic programs (see “Lenovo Solution Center” on page 52 for instructions). If you need technical assistance, see “Additional information resources” on page 32.

  • Page 46: Intermittent Problems

    If these actions do not correct the problem, run the diagnostic programs (see “Lenovo Solution Center” on page 52 for instructions). If you need technical assistance, see “Additional information resources” on page 32.

  • Page 47: Hard Disk Drive Problems

    If airflow is blocked or the fans are not working, the computer might overheat. If these actions do not correct the problem, run the diagnostic programs (see “Lenovo Solution Center” on page 52 for instructions). If you need technical assistance, see “Additional information resources” on page 32.

  • Page 48: Keyboard, Mouse, Or Pointing Device Problems

    See “Enabling or disabling a device” on page 55. If these actions do not correct the problem, run the diagnostic programs (see “Lenovo Solution Center” on page 52 for instructions). If you need technical assistance, see “Additional information resources” on page 32.

  • Page 49: Monitor Problems

    Action: Erratic movement of the mouse pointer is generally caused by a buildup of dirt, oils, and other contaminants on the ball inside the mouse. Clean the mouse. The fingerprint reader does not work Symptom: The fingerprint reader does not work. Action: The following could cause the fingerprint reader not to operate properly: •...
  • Page 50 If these actions do not correct the problem, run the diagnostic programs (see “Lenovo Solution Center” on page 52 for instructions). If you need technical assistance, see “Additional information resources” on page 32.

  • Page 51: Networking Problems

    The image is discolored Symptom: The image is discolored. Action: The monitor might be affected by interference from nearby equipment. Magnetic fields around other devices, such as transformers, appliances, fluorescent lights, and other monitors might be causing the problem. Move fluorescent desk lighting or any equipment that produces magnetic fields further away from the monitor.

  • Page 52: A Wireless Lan Problem

    3. Click Device Manager. If you are prompted for an administrator password or confirmation, type the password or provide confirmation. 4. If an exclamation mark is displayed next to an adapter name under Network adapters, you might not use the correct driver or the driver is not enabled. To update the driver, right-click the highlighted adapter.

  • Page 53: Option Problems

    Bluetooth, a PIM item sent from the Windows 7 operating system might be saved as a file with the extension .contact. Option problems Use this information to diagnose problems with Lenovo hardware options that do not have their own troubleshooting information. Chapter 5...

  • Page 54: Performance And Lockup Problems

    If these actions do not correct the problem, run the diagnostic programs (see “Lenovo Solution Center” on page 52 for instructions). If you need technical assistance, see “Additional information resources” on page 32.

  • Page 55: Excessive Number Of Fragmented Files

    To check the amount of free space on the Windows 7 operating system, do the following: 1. Click Start ➙ Computer. 2. Right-click your C drive entry and then click Properties. The amount of free disk space is displayed. Actions to free up disk space: •...

  • Page 56: Printer Problems

    32. For step-by-step instructions on installing memory, see “Installing or replacing a memory module” on page 91. If these actions do not correct the problem, run the diagnostic programs (see “Lenovo Solution Center” on page 52 for instructions). If you need technical assistance, see “Additional information resources” on page 32.

  • Page 57: Software Problems

    Software problems Select your symptom from the following list: • “When using a sort feature, dates do not sort in the correct order” on page 51 • “Software does not work as expected” on page 51 When using a sort feature, dates do not sort in the correct order Symptom: When using a sort feature, dates do not sort in the correct order.

  • Page 58: Diagnostics

    Note: If you are unable to isolate and repair the problem yourself after running the program, save and print the log files created by the program. You will need the log files when you speak to a Lenovo technical support representative.

  • Page 59: Copyright Lenovo

    Using passwords By using the Setup Utility program, you can set passwords to prevent unauthorized access to your computer and data. The following types of passwords are available: • Power-On Password © Copyright Lenovo 2012...

  • Page 60: Password Considerations

    • Administrator Password • Hard Disk Password You do not have to set any passwords to use your computer. However, using passwords improves computing security. If you decide to set any passwords, read the following sections. Password considerations A password can be any combination of up to 64 alphabetic and numeric characters. For security reasons, it is recommended to use a strong password that cannot be easily compromised.

  • Page 61: Erasing Lost Or Forgotten Passwords (Clearing Cmos)

    2. From the Setup Utility program main menu, select Security. 3. Depending on the password type, select Set Power-On Password, Set Administrator Password, or Hard Disk Password. 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.

  • Page 62: Selecting A Startup Device

    Selecting a startup device If your computer does not start up from a device such as the disc or hard disk drive as expected, do one of the following to select the startup device you want. • Select a temporary startup device. See “Selecting a temporary startup device” on page 56. •...

  • Page 63: Ice Performance Mode

    • Pressing the power switch • Enabling the wake up on alarm feature The wake up on alarm feature enables your computer to wake up at a set time. To enable the wake up on alarm feature, do the following: 1.

  • Page 64: Exiting The Setup Utility Program

    After enabling the ICE thermal alert function, when critical thermal situations occur, such as malfunctioning fans, abnormally high temperature, and poor cooling performances, an alert log will be written into the Windows system log. The alert log can help you identify the thermal problems. To configure the ICE thermal alert function, do the following: 1.

  • Page 65: Chapter 7. Configuring Raid

    • If zero to four SATA hard disk drives or solid state drives are installed, no hard disk drive enablement module is needed. • If five SATA hard disk drives or solid state drives are installed, the SATA hard disk drive enablement module (one to five hard disk drives) is required. © Copyright Lenovo 2012...

  • Page 66: Configuring Sata Raid Functionality With The Intel Rste Configuration Utility

    Configuring SATA RAID functionality with the Intel RSTe configuration utility This section describes the information about configuring SATA RAID functionality with the Intel RSTe configuration utility Note: The Intel RSTe configuration utility assumes that your computer is installed with more than one hard disk drive.
  • Page 67 d. Strip Size: Press the up and down arrow keys to select a strip size. e. Capacity: Customize the capacity of the RAID volume. The default RAID volume is the largest value. 4. Press Enter to finish configuring all the five options. When prompted, press Y to confirm the creation of the new RAID volume.
  • Page 68 ThinkStation Hardware Maintenance Manual...

  • Page 69: Chapter 8. Symptom-To-Fru Index

    Check the power cord for continuity. Power cord Check the turn on switch for continuity. Turn on switch Beep symptoms Beep symptoms are tones or a series of tones separated by pauses (intervals without sound) during POST. © Copyright Lenovo 2012...

  • Page 70: Post Error Codes

    The following tables describes beep symptoms. Beep Symptom FRU/Action Perform the following actions in order. 2 short beeps CMOS setting error 1. Start the Setup Utility program and press F10 to Save and exit. See Chapter 6 “Using the Setup Utility program”...
  • Page 71 POST Error code POST Error message Description/Action 1762 This error message is displayed when a hard disk SATA device configuration change has occurred drive or optical drive change has been made. Press F1 to enter the Setup Utility program. Then press F10 to save and exit the Setup Utility program.

  • Page 72: Miscellaneous Error Messages

    Miscellaneous error messages Message/Symptom FRU/Action Changing display colors Display/Monitor Computer will not turn off. See “Hard disk drive boot 1. Power switch error” on page 63. 2. System board 3. Riser card, if installed. Computer will not RPL from server 1.

  • Page 73: Undetermined Problems

    Message/Symptom FRU/Action Non-system disk or disk error-type message with a 1. Diskette drive known-good diagnostic diskette. 2. System board 3. Diskette drive cable 1. Display Other display symptoms not listed above (including blank or illegible display) 2. System board Turn on indicator or hard disk drive in-use light not on, but 1.
  • Page 74 d. Extended video memory e. External Cache f. External Cache RAM g. Hard disk drive h. Diskette drive 3. Turn on the computer to re-test the system. 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.

  • Page 75: Chapter 9. Locations

    Figure 1. Front connector, control, and indicator locations Optical drive eject/close button USB 2.0 connector (USB port 1) Hard disk drive activity indicator Headphone connector Power indicator Microphone connector Power switch USB 2.0 connector (USB port 2) © Copyright Lenovo 2012...

  • Page 76: Locating Connectors On The Rear Of Your Computer

    Locating connectors on the rear of your computer Figure 2 “Rear connector locations” on page 70 shows the locations of the connectors on the rear of your computer. Some connectors on the rear of your computer are color-coded to help you determine where to connect the cables on your computer.

  • Page 77: Locating Major Frus And Crus

    Connector Description DisplayPort connector Used to attach a high-performance monitor, a direct-drive monitor, or other devices that use a DisplayPort connector. Note: The DisplayPort connector is not applicable on some models. If your computer has a graphics card installed, be sure to use a monitor connector on the graphics card.
  • Page 78 Figure 3. Locating major FRUs and CRUs The following table lists the major FRUs shown in Figure 3 “Locating major FRUs and CRUs” on page 72 and identifies which FRUs also are self-service CRUs or optional-service CRUs. Notes: ThinkStation Hardware Maintenance Manual...

  • Page 79: Looking Up Fru Information

    Front fan assembly Graphics (PCI) card (available in some models) Rear fan assembly Power supply assembly Keyboard Mouse Looking up FRU information For detailed FRU information, such as the FRU part numbers and supported computer models, go to: http:/www.lenovo.com/serviceparts-lookup Chapter 9 Locations...

  • Page 80: Locating Parts On The System Board

    Locating parts on the system board Figure 4 “System board part locations” on page 74 shows the locations of the parts on the system board. Figure 4. System board part locations ThinkStation Hardware Maintenance Manual...
  • Page 81 4-pin power connector Front USB connector 1 (for connecting USB port 1 and 2 on the front bezel) Microprocessor fan connector Battery Memory slot 1 (DIMM1) Front USB connector 2 (for connecting additional USB devices) Memory slot 2 (DIMM2) Serial (COM2) connector Memory slot 3 (DIMM3) Internal speaker connector Memory slot 4 (DIMM4)

  • Page 82: Locating Internal Drives

    Locating internal drives Internal 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 drives are installed in bays. In this manual, the bays are referred to as bay 1, bay 2, and so on. When installing or replacing an internal drive, it is important to note the type and size of the drive that you can install or replace in each bay and correctly connect the cables to the drive installed.

  • Page 83: Locating Connectors, Controls, And Indicators On The Front Of Your Computer

    Locating connectors, controls, and indicators on the front of your computer Figure 6 “Front connector, control, and indicator locations” on page 77 shows the locations of the connectors, controls, and indicators on the front of your computer. Figure 6. Front connector, control, and indicator locations Optical drive eject/close button USB 2.0 connector (USB port 2) Power switch...

  • Page 84: Locating Connectors On The Rear Of Your Computer

    Locating connectors on the rear of your computer Figure 7 “Rear connector locations” on page 78 shows the locations of the connectors on the rear of your computer. Some connectors on the rear of your computer are color-coded to help you determine where to connect the cables on your computer.

  • Page 85: Locating Major Frus And Crus

    Connector Description Audio line-in connector Used to receive audio signals from an external audio device, such as a stereo system. When you attach an external audio device, a cable is connected between the audio line-out connector of the device and the audio line-in connector of the computer.
  • Page 86 Figure 8. Locating major FRUs and CRUs The following table lists the major FRUs shown in Figure 8 “Locating major FRUs and CRUs” on page 80 and identifies which FRUs also are self-service CRUs or optional-service CRUs. Notes: • Self-service CRUs: These CRUs unplug or are secured by no more than two screws. Examples of these types of CRUs include the keyboard, the mouse, any USB device, and the power cord.

  • Page 87: Looking Up Fru Information

    Hard disk drive Memory module Peripheral Component Interconnect (PCI) card (available in some models) System board Keyboard Mouse Looking up FRU information For detailed FRU information, such as the FRU part numbers and supported computer models, go to: http:/www.lenovo.com/serviceparts-lookup Chapter 9 Locations...

  • Page 88: Locating Parts On The System Board

    Locating parts on the system board Figure 9 “System board part locations” on page 82 shows the locations of the parts on the system board. Figure 9. System board part locations ThinkStation Hardware Maintenance Manual...
  • Page 89 4-pin power connector Front USB connector 1 (for connecting USB port 1 and 2 on the front bezel) Microprocessor fan connector Battery Memory slot 1 (DIMM1) Front USB connector 2 (for connecting additional USB devices) Memory slot 2 (DIMM2) Serial (COM2) connector Memory slot 3 (DIMM3) Internal speaker connector Memory slot 4 (DIMM4)

  • Page 90: Locating Internal Drives

    Locating internal drives Internal 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 drives are installed in bays. In this manual, the bays are referred to as bay 1, bay 2, and so on. Your computer comes with the following factory-installed drives: •...

  • Page 91: Chapter 10. Replacing Frus (For Machine Types: 2551, 2552, 2553, 2554, And 2555)

    Do not open your computer or attempt any repair before reading and understanding “Important Safety Information” on page 1. Notes: 1. Use only computer parts provided by Lenovo. 2. When installing or replacing an option, use the appropriate instructions in this section along with the instructions that come with the option.

  • Page 92: Removing The Computer Cover

    required connector. Then, use the instructions that come with the option to help you make the connection and install any software or device drivers that are required for the option. Removing the computer cover Attention: Do not open your computer or attempt any repair before reading and understanding “Important Safety Information” on page 1.

  • Page 93: Removing And Reinstalling The Front Bezel

    6. Press the cover-release button on the side of the computer and slide the cover to the rear of the computer to remove the cover. Figure 11. Removing the computer cover Removing and reinstalling the front bezel Attention: Do not open your computer or attempt any repair before reading and understanding “Important Safety Information” on page 1.

  • Page 94: Installing Or Replacing A Pci Card

    3. Remove the front bezel by releasing the three plastic tabs on the left side and pivoting the front bezel outward. Figure 12. Removing the front bezel 4. To reinstall the front bezel, align the three plastic tabs on the right side of the front bezel with the corresponding holes in the chassis, then pivot the front bezel inwards until it snaps into position on the left side.
  • Page 95 3. At the rear of the computer, press the release button to open the card latch Figure 13. Opening the PCI card latch 4. Depending on whether you are installing or replacing a PCI card, do one of the following: •...
  • Page 96 Figure 14. Removing a PCI card Notes: a. The card fits tightly into the card slot. If necessary, alternate moving each side of the card a small amount until it is removed from the card slot. b. If the card is held in place by a retaining latch, disengage the card retaining latch in either of the two ways illustrated, depending on the retaining latch on the PCI card slot.

  • Page 97: Installing Or Replacing A Memory Module

    7. Pivot the card latch to the closed position to secure the PCI card. Figure 16. Installing a PCI card 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 118. Installing or replacing a memory module Attention: Do not open your computer or attempt any repair before reading and understanding “Important Safety Information”...
  • Page 98 UDIMM DIMM 1 DIMM 2 DIMM 3 DIMM 4 One UDIMM Two UDIMMs X, 1 X, 2 Three UDIMMs X, 3 X, 1 X, 2 Four UDIMMs X, 3 X, 1 X, 4 X, 2 To install or replace a memory module, do the following: 1.

  • Page 99: Installing Or Replacing The Optical Drive

    • If you are installing a memory module, open the retaining clips of the memory slot into which you want to install the memory module. Figure 18. Opening the retaining clips 7. Position the new memory module over the memory slot. Make sure that the notch on the memory module aligns correctly with the slot key on the system board.
  • Page 100 1. Turn off the computer and disconnect all power cords from electrical outlets. 2. Remove the computer cover. See “Removing the computer cover” on page 86. 3. Remove the front bezel. See “Removing and reinstalling the front bezel” on page 87. 4.

  • Page 101: Replacing The Card Reader

    6. Slide the new optical drive into the drive bay from the front of the computer until the optical drive snaps into position. Figure 22. Installing the optical drive 7. Connect the signal cable and the power cable to the new optical drive. Figure 23.
  • Page 102 To replace the card reader, do the following: 1. Remove all 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.

  • Page 103: Replacing The Heat Sink And Fan Assembly

    8. Slide the new card reader into the drive bay until it snaps into position. Figure 26. Installing the card reader 9. Reconnect the card reader cable to the front USB connector on the system board. See “Locating parts on the system board” on page 74. 10.
  • Page 104 5. Disconnect the heat sink and fan assembly cable from the microprocessor fan connector on the system board. See “Locating parts on the system board” on page 74. 6. Follow this sequence to remove the four screws that secure the heat sink and fan assembly to the system board: a.

  • Page 105: Replacing The Front Fan Assembly

    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 118. Replacing the front fan assembly Attention: Do not open your computer or attempt any repair before reading and understanding “Important Safety Information” on page 1.

  • Page 106: Replacing The Rear Fan Assembly

    7. Pull the tips of the rubber mounts until the front fan assembly is secured in place. Figure 29. Installing the front fan assembly 8. Connect the front fan assembly cable to the power fan connector on the system board. What to do next: •...
  • Page 107 5. The rear fan assembly is attached to the chassis by four rubber mounts. Remove the rear fan assembly by breaking or cutting the rubber mounts and gently pulling the rear fan assembly out of the chassis. Note: The new rear fan assembly will have four new rubber mounts attached. Figure 30.

  • Page 108: Installing The Solid State Drive

    7. Pull on the tips of the rubber mounts until the rear fan assembly is secured in place. Figure 31. Installing the rear fan assembly 8. Connect the rear fan assembly cable to the system fan connector on the system board. What to do next: •...
  • Page 109 1. Install the solid state drive into the storage converter. Then, install the four screws to secure the solid state drive to the storage converter. Figure 32. Installing the solid state drive into the storage converter 2. To install the solid state drive with the storage converter into the 3.5-inch hard disk drive bracket, flex the bracket and align pin , pin , pin...

  • Page 110: Replacing The Primary Hard Disk Drive

    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 118. Replacing the primary hard disk drive Attention: Do not open your computer or attempt any repair before reading and understanding “Important Safety Information”...
  • Page 111 7. To install a new hard disk drive into the blue bracket, flex the bracket and align pin , pin , pin and pin on the bracket with the corresponding holes in the hard disk drive. Do not touch the circuit board on the bottom of the hard disk drive.

  • Page 112: Replacing The Secondary Hard Disk Drive

    • To complete the installation or replacement, go to “Completing the parts replacement” on page 118. Replacing the secondary hard disk drive Attention: Do not open your computer or attempt any repair before reading and understanding “Important Safety Information” on page 1. Note: Your computer comes with a secondary hard disk drive bay for installing or replacing a secondary 3.5-inch hard disk drive or a 2.5-inch solid state drive.
  • Page 113 7. To install a new hard disk drive into the blue bracket, flex the bracket and align pin , pin , pin and pin on the bracket with the corresponding holes in the hard disk drive. Do not touch the circuit board on the bottom of the hard disk drive.

  • Page 114: Installing The Tertiary Hard Disk Drive

    • To complete the installation or replacement, go to “Completing the parts replacement” on page 118. Installing the tertiary hard disk drive Attention: Do not open your computer or attempt any repair before reading and understanding “Important Safety Information” on page 1. Note: You can install a tertiary 3.5-inch hard disk drive or a 2.5-inch solid state drive into the secondary optical drive bay in your computer.
  • Page 115 a. Install the solid state drive into the storage converter. Then, install the five screws to secure the solid state drive to the storage converter. Figure 41. Installing the solid state drive into the storage converter b. Install the solid state drive with the storage converter into the 5.25-inch optical drive bracket. Then, fully tighten the four screws to secure the solid state drive with the storage converter to the 5.25-inch optical drive bracket.
  • Page 116 6. Install the optical drive retainer on the side of the optical drive bracket. Figure 43. Installing the optical drive retainer 7. Slide the optical drive bracket into the secondary optical drive bay from the front of the computer until the optical drive bracket snaps into position. Figure 44.

  • Page 117: Replacing The Power Supply Assembly

    9. Reinstall the front bezel. See “Removing and reinstalling the front bezel” on page 87. 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 118. Replacing the power supply assembly Attention: Do not open your computer or attempt any repair before reading and understanding “Important Safety Information”...

  • Page 118: Replacing The Microprocessor

    9. Install and tighten the four screws to secure the power supply assembly. Note: Use only screws provided by Lenovo. 10. Reconnect the power supply assembly cables to the system board and each of the drives.
  • Page 119 To replace the microprocessor, do the following: 1. Turn off the computer and disconnect all power cords from electrical outlets. 2. Remove the computer cover. See “Removing the computer cover” on page 86. 3. Lay the computer on its side for easier access to the system board. 4.
  • Page 120 b. Note the orientation of the microprocessor in the socket. You can either look for the small triangle on one corner of the microprocessor or note the orientation of the notches on the microprocessor. This is important when installing the new microprocessor on the system board. c.

  • Page 121: Replacing The System Board

    What to do next: • To work with another piece of hardware, go to the appropriate section. • To complete the replacement, go to “Completing the parts replacement” on page 118. Replacing the system board Attention: Do not open your computer or attempt any repair before reading and understanding “Important Safety Information” on page 1.
  • Page 122 9. Remove the eight screws that secure the system board. Figure 50. Removing the eight screws that secure the system board 10. Carefully slide the system board so that it can be released from the mounting studs that secure the system board in place.
  • Page 123 1. Release the lever securing the microprocessor retainer and open the retainer to access the microprocessor. 2. Grasp the microprocessor on the sides and lift it straight up and out of the socket. Do not touch the contacts on the microprocessor socket. 3.

  • Page 124: Completing The Parts Replacement

    8. To update your configuration, refer to Chapter 6 “Using the Setup Utility program” on page 53. Note: In most areas of the world, Lenovo requires the return of the defective Field Replaceable Units (FRUs). Information about this will come with the new FRUs or will come a few days after you receive the new FRUs.

  • Page 125: Chapter 11. Replacing Frus (For Machine Types: 3688, 3690, 3691, 3693, And 3695)

    Do not open your computer or attempt any repair before reading and understanding “Important Safety Information” on page 1. Notes: 1. Use only computer parts provided by Lenovo. 2. When installing or replacing an option, use the appropriate instructions in this section along with the instructions that come with the option.

  • Page 126: Opening The Computer Cover

    required connector. Then, use the instructions that come with the option to help you make the connection and install any software or device drivers that are required for the option. Opening the computer cover Attention: Do not open your computer or attempt any repair before reading and understanding “Important Safety Information” on page 1.
  • Page 127 1. Remove all 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. Open the computer cover. See “Opening the computer cover” on page 120. 3.

  • Page 128: Accessing The System Board Components And Drives

    4. To reinstall the front bezel, align the other three plastic tabs on the bottom of the front bezel with the corresponding holes in the chassis, then pivot the front bezel inward until it snaps into position. Figure 55. Reinstalling the front bezel What to do next: •...

  • Page 129: Installing Or Replacing A Memory Module

    Installing or replacing a memory module Attention: Do not open your computer or attempt any repair before reading and understanding “Important Safety Information” on page 1. This section provides instructions on how to install or replace a memory module. Your computer has four slots for installing or replacing DDR3 UDIMMs that provide up to a maximum of 32 GB system memory.
  • Page 130 • If you are replacing an old memory module, open the retaining clips and gently pull the memory module out of the memory slot. Figure 56. Removing a memory module • If you are installing a memory module, open the retaining clips of the memory slot into which you want to install the memory module.

  • Page 131: Installing Or Replacing A Pci Card

    10. Position the new memory module over the memory slot. Make sure 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 58.
  • Page 132 Figure 59. Removing a PCI card Notes: a. The card fits tightly into the card slot. If necessary, alternate moving each side of the card a small amount until it is removed from the card slot. b. If the card is held in place by a retaining latch, disengage the card retaining latch in either of the two ways illustrated, depending on the retaining latch on the PCI card slot.

  • Page 133: Installing Or Replacing The Card Reader

    6. Install the new card into the appropriate card slot on the system board and rotate the card retainer to the closed position. See “Locating parts on the system board” on page 82. Figure 61. Installing a PCI card What to do next: •...
  • Page 134 Note: You might have to remove the metal cover of the card reader drive bay. 5. Install the new card reader into the card reader bracket. Then install the two screws to secure the card reader to the bracket. 6. Install the card reader bracket to the chassis. Then push the bracket to the left to align the screw hole in the bracket with the corresponding hole in the chassis.
  • Page 135 7. Install the screw to secure the card reader bracket to the chassis. Figure 63. Installing the screw that secures the card reader 8. Connect the card reader cable to one of the USB connectors on the system board. See “Locating parts on the system board”...
  • Page 136 Replacing the card reader To replace the card reader, do the following: 1. Remove all 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.
  • Page 137 9. Install the card reader bracket to the chassis. Then push the bracket to the left to align the screw hole in the bracket with the corresponding hole in the chassis. Figure 66. Installing the card reader Chapter 11 Replacing FRUs (for machine types: 3688, 3690, 3691, 3693, and 3695)

  • Page 138: Replacing The Battery

    10. Install the screw to secure the card reader bracket to the chassis. Figure 67. Installing the screw that secures the card reader 11. Reconnect the card reader cable to one of the USB connectors on the system board. See “Locating parts on the system board”...

  • Page 139: Installing The Solid State Drive

    Refer to the “Lithium battery notice” in the Safety, Warranty, and Setup Guide for information about replacing and disposing of the battery. To replace the battery, do the following: 1. Turn off the computer and disconnect all power cords from electrical outlets. 2.
  • Page 140 To install the solid state drive, do the following: 1. Install the solid state drive into the adapter. Then, install the four screws to secure the solid state drive to the adapter. Figure 70. Installing the solid state drive into the adapter 2.

  • Page 141: Replacing The Hard Disk Drive

    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 165. Replacing the hard disk drive Attention: Do not open your computer or attempt any repair before reading and understanding “Important Safety Information” on page 1.
  • Page 142 6. Flex the retaining clips as shown to remove the hard disk drive from the bracket. Figure 73. Removing the hard disk drive from the bracket 7. To install a new hard disk drive into the bracket, flex the bracket and align pin , pin , pin , and pin...

  • Page 143: Replacing The Optical Drive

    9. Insert the two retaining clips of the hard disk drive bracket into the corresponding holes in the side of the optical drive bay, and then pivot the hard disk drive and bracket downwards until the hard disk drive bracket snaps into position. Figure 74.
  • Page 144 5. Press the blue retaining clip to pivot the optical drive bay upward. Figure 75. Pivoting the optical drive bay 6. Disconnect the signal cable and the power cable from the rear of the optical drive. ThinkStation Hardware Maintenance Manual...
  • Page 145 7. Press the optical drive lock and slide the optical drive out of the rear of the drive bay assembly. Figure 76. Removing the old optical drive 8. Install the optical drive retainer on the side of the new optical drive. Figure 77.

  • Page 146: Replacing The Heat Sink And Fan Assembly

    9. Slide the new optical drive into the drive bay until it snaps into position. Figure 78. Installing a new optical drive 10. Connect the signal cable and the power cable to the rear of the optical drive. What to do next: •...
  • Page 147 3. Disconnect the heat sink and fan assembly cable from the microprocessor fan connector on the system board. See “Locating parts on the system board” on page 82. 4. Follow this sequence to remove the four screws that secure the heat sink and fan assembly to the system board: a.
  • Page 148 6. Pivot the two plastic retaining clips that secure the heat sink fan duct outward. Then remove the heat sink fan duct from the failing heat sink and fan assembly. Figure 80. Removing the heat sink fan duct 7. Place the new heat sink and fan assembly on the system board so that the four screws are aligned with the corresponding holes in the system board.

  • Page 149: Replacing The Power Supply Assembly

    10. Lower and position the heat sink fan duct on the top of the heat sink and fan assembly until it snaps into position. Figure 81. Installing the heat sink fan duct What to do next: • To work with another piece of hardware, go to the appropriate section. •...
  • Page 150 CAUTION: Hazardous moving parts. Keep fingers and other body parts away. CAUTION: Never remove the cover on a power supply or any part that has the following label attached. Hazardous voltage, current, and energy levels are present inside any component that has this label attached.
  • Page 151 5. Pivot the two plastic retaining clips that secure the heat sink fan duct outward, and then lift the heat sink fan duct out of the chassis. Figure 82. Removing the heat sink fan duct Chapter 11 Replacing FRUs (for machine types: 3688, 3690, 3691, 3693, and 3695)
  • Page 152 6. Pivot the optical drive upward and disconnect the power supply assembly cables from all drives and from power connectors on the system board. Figure 83. Power connectors on the system board Note: You might also need to release the power supply assembly cables from some cable clips or ties that secure the cables to the chassis.
  • Page 153 Then, install the three screws to secure the new power supply assembly in place. Note: Use only screws provided by Lenovo. Figure 85. Installing the power supply assembly 10.

  • Page 154: Replacing The Microprocessor

    11. Lower and position the heat sink fan duct on the top of the heat sink and fan assembly until it snaps into position. Figure 86. Installing the heat sink fan duct What to do next: • To work with another piece of hardware, go to the appropriate section. •...
  • Page 155 3. Locate the system board and disconnect all cables connected to the system board. See “Locating parts on the system board” on page 82. 4. Remove the heat sink and fan assembly with the fan duct. See “Replacing the heat sink and fan assembly”...
  • Page 156 b. Note the orientation of the microprocessor in the socket. You can either look for the small triangle on one corner of the microprocessor or note the orientation of the notches on the microprocessor. This is important when installing the new microprocessor on the system board. c.

  • Page 157: Replacing The Cover Presence Switch

    12. Reinstall the heat sink and fan assembly with the fan duct as shown. See “Replacing the heat sink and fan assembly” on page 140. Figure 90. Reinstalling the heat sink and fan assembly with the fan duct 13. Reconnect all cables that were disconnected from the system board. What to do next: •...
  • Page 158 5. Disconnect the cover presence switch cable from the cover presence switch connector on the system board. See “Locating parts on the system board” on page 82. 6. Remove the screw that secures the cover presence switch and remove the cover presence switch from the chassis.

  • Page 159: Replacing The Internal Speaker

    8. Install the screw to secure the cover presence switch to the chassis. Figure 92. Installing the new cover presence switch 9. Reconnect the cover presence switch cable to the system board. See “Locating parts on the system board” on page 82. 10.
  • Page 160 1. Turn off the computer and disconnect all power cords from electrical outlets. 2. Open the computer cover. See “Opening the computer cover” on page 120. 3. Remove the front bezel. See “Removing and reinstalling the front bezel” on page 120. 4.

  • Page 161: Replacing The Front Audio And Usb Assembly

    8. Align the new internal speaker with the two metal clips on the chassis, and then slide the speaker as shown until it snaps into position. Figure 94. Installing the new internal speaker 9. Reconnect the internal speaker cable to the system board. See “Locating parts on the system board” on page 82.
  • Page 162 To replace the front audio and USB assembly, do the following: 1. Remove all 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.

  • Page 163: Replacing The System Fan

    Replacing the system fan Attention: Do not open your computer or attempt any repair before reading and understanding “Important Safety Information” on page 1. This section provides instructions on how to replace the system fan. To replace the system fan, do the following: 1.

  • Page 164: Replacing The Thermal Sensor

    7. Install the new system fan by aligning the new rubber mounts that came with the new system fan with the corresponding holes in the chassis, and then push the rubber mounts through the holes. Then, carefully pull on the tips of the rubber mounts from the bottom until the new system fan is secured in place. Figure 97.
  • Page 165 8. From inside the chassis, pivot the left retaining clip that secures the plastic holder of the thermal sensor and then push the clip outward to release the clip. Then disengage the plastic holder holding the thermal sensor from the chassis. Figure 98.
  • Page 166 10. Insert the connector and cable of the new thermal sensor into the left hole in the chassis. Then align the two tabs on the plastic holder holding the thermal sensor with the two holes in the chassis, and press the plastic holder until it snaps into position. Figure 99.

  • Page 167: Replacing The Power Switch

    Replacing the power switch Attention: Do not open your computer or attempt any repair before reading and understanding “Important Safety Information” on page 1. This section provides instructions on how to replace the power switch. To replace the power switch, do the following: 1.

  • Page 168: Replacing The System Board

    7. Insert the two plastic tabs in the new power switch through the hole on the chassis, and then press the power switch as shown until it snaps into position. Figure 101. Installing the new power switch 8. Reconnect the power switch cable to the system board. See “Locating parts on the system board” on page 82.
  • Page 169 To replace the system board, do the following: 1. Remove all 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.
  • Page 170 13. Install all memory modules and PCI cards removed from the failing system board on the new system board. See “Installing or replacing a memory module” on page 123 and “Installing or replacing a PCI card” on page 125. 14. Reconnect all cables to the system board. See “Locating parts on the system board” on page 82. 15.

  • Page 171: Completing The Parts Replacement

    8. To update your configuration, refer to Chapter 6 “Using the Setup Utility program” on page 53. Note: In most areas of the world, Lenovo requires the return of the defective Field Replaceable Units (FRUs). Information about this will come with the new FRUs or will come a few days after you receive the new FRUs.
  • Page 172 Obtaining device drivers You can obtain device drivers for operating systems that are not preinstalled at http://www.lenovo.com/support. Installation instructions are provided in readme files with the device-driver files. ThinkStation Hardware Maintenance Manual...

  • Page 173: Chapter 12. Additional Service Information

    • To determine the current Level of BIOS: – Start the Setup Utility program. • Sources for obtaining the latest level BIOS available 1. Lenovo support web site: http://www.lenovo.com/support 2. Lenovo Customer Support Center 3. Levels 1 and 2 Support To update (flash) the BIOS, see “Updating (flashing) the BIOS”...

  • Page 174: Updating (Flashing) The Bios From Your Operating System

    Updating (flashing) the BIOS from your operating system Note: Because Lenovo makes constant improvements to its Web sites, the Web page contents are subject to change without notice, including the contents referenced in the following procedure.

  • Page 175: Power Management

    5. Move the jumper from the standard position (pin 1 and pin 2) to the maintenance position (pin 2 and pin 3). 6. Reconnect any cables that were disconnected and reinstall the PCI card if removed. 7. Reinstall the computer cover and reconnect the power cords for the computer and monitor to electrical outlets.
  • Page 176 ThinkStation Hardware Maintenance Manual...

  • Page 177: Appendix A. 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.

  • Page 178: Television Output Notice

    European conformance CE mark The emission notices information is available in the Safety and Warranty Guide that came with your computer. Trademarks The following terms are trademarks of Lenovo in the United States, other countries, or both: Lenovo The Lenovo logo...

  • Page 179: Index

    CRUs (Customer Replacable Units), returning defective enabling a device, Setup Utility program environment, operating 29–30 © Copyright Lenovo 2012...
  • Page 180 ErP compliance mode, enabling front fan assembly error messages, miscellaneous heat sink fan assembly Ethernet connector 71, 79 internal speaker ethernet problems, troubleshooting memory module 1000 Mbps connection fails or errors occur microprocessor adapter connects at 100 Mbps instead of 1000 Mbps optical drive adapter stops working for no apparent reason overview...
  • Page 181 RAID volumes, creating description RAID volumes, deleting Optional-service CRUs rear fan assembly, replacing, tower computers optional-service FRUs, tower computers recovery boot-block replacing card reader part numbers hard disk drive © Copyright Lenovo 2012...
  • Page 182 microprocessor tower computers system board starting the Setup Utility program resources, information startup device, selecting description selecting a temporary startup device startup sequence startup sequence, changing safety information static-sensitive devices, handling electrical desktop computers electrostatis discharge-sensitive devices tower computers general symptom-to-FRU index grounding requirements description...
  • Page 183 LAN problem wireless WAN problem option problems an option that previously worked does not work now © Copyright Lenovo 2012...
  • Page 184 ThinkStation Hardware Maintenance Manual...

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