Lenovo ThinkCentre M81 (English) User Guide

Lenovo ThinkCentre M81 Manual

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  • Lenovo ThinkCentre M81 | (English) User Guide - Page 1
    ThinkCentre User Guide Machine Types: 0268, 1730, 1943, 4166, 4169, 5030, 5048, 5069, and 7517
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    it supports, be sure to read and understand the "Important safety information" on page v and Appendix A "Notices" on page 115. Fourth Edition (June 2012) © Copyright Lenovo 2011, 2012. LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant a General Services Administration
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    ix Power supply statement ix Cleaning and maintenance ix Chapter 1. Product overview 1 Features 1 Specifications 5 Software overview 5 Software provided by Lenovo 5 Adobe Reader 8 Antivirus software 8 Locations 8 Locating connectors, controls, and indicators on the front of your computer
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    your computer 88 Chapter 10. Troubleshooting and diagnostics 91 Basic troubleshooting 91 Troubleshooting procedure 92 Troubleshooting 92 Audio problems 93 CD problems 94 DVD problems 95 Intermittent problems 97 Keyboard, mouse, or pointing device problems 97 Monitor problems 99 Networking
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    Union 123 Appendix D. Restriction of Hazardous Substances Directive (RoHS) . . . . 125 China RoHS 125 Turkish RoHS 125 Ukraine RoHS 125 India RoHS 126 Index 127 © Copyright Lenovo 2011, 2012 iii
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    iv ThinkCentre User Guide
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    from the Lenovo® Support Web site at http://www.lenovo.com/support. The Lenovo Support Web site also provides the ThinkCentre Safety and Warranty Guide and this ThinkCentre User Guide in additional languages. Service and upgrades Do not attempt to service a product yourself unless instructed to do
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    and place the part on it. • Do not place the part on the computer cover or other metal surface. Power cords and power adapters Use only the power cords and power adapters supplied by the product manufacturer. The power cords shall be safety approved. For Germany, it shall be H05VV-F, 3G, 0.75
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    for an approved outlet adapter or to replace the outlet with one that enables this safety feature. Never overload an electrical outlet. desktop computer for dust accumulation at least once every three months. Before inspecting your computer, turn off the power and unplug the computer's power
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    , high-powered speakers, air conditioner, and microwave oven away from your computer because the strong magnetic fields generated by these appliances can damage the monitor and data on the hard disk drive. Do not telephone to report a gas leak in the vicinity of the leak. viii ThinkCentre User Guide
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    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. There are no serviceable parts inside these components. If you suspect a problem with one of these parts
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    x ThinkCentre User Guide
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    Core™ i3 microprocessor • Intel Core i5 microprocessor • Intel Core i7 microprocessor • Intel Celeron® microprocessor • Intel Pentium® microprocessor Memory Your computer supports up to four double data rate 3 unbuffered dual inline memory modules (DDR3 UDIMMs). Internal drives • Optical drive: DVD
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    into computers in order to make them easier and less expensive for businesses to monitor, maintain, update, upgrade, and repair. • Intel Matrix Storage Manager Intel Matrix Storage Manager is a device driver that provides support for SATA RAID 5 arrays and SATA RAID 10 arrays on specific Intel
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    connectors on the rear of your computer" on page 10. Expansion • Two hard disk drive bays (one standard and one optional) • Two optical drive bays • Two PCI card slots • One PCI Express x1 card slot • One PCI Express x16 graphics card slot Power supply Your computer comes with 280-watt automatic
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    might be identified by Lenovo as compatible with your computer following the publication of this manual. This list is subject to change. To determine if an operating system has been certified or tested for compatibility, check the Web site of the operating system vendor. 4 ThinkCentre User Guide
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    This section lists the physical specifications for your computer. Dimensions Width: 175 mm (6.89 inches) Height: 414 mm (16.30 inches) Depth: 442 mm (17.40 inches) Weight Maximum configuration as shipped: 11 kg (24.25 lbs) Environment • Air temperature: Operating: 10°C to 35°C (50°F to 95
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    Toolbox program, see "Lenovo ThinkVantage Toolbox" on page 109. 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 6 ThinkCentre User Guide
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    is a one button recovery and restore solution that includes a set of self-recovery tools to help you diagnose computer problems, get help, and recover from system crashes, even if you cannot start the Windows operating system. Note: If the Enhanced Backup and Restore icon in the Lenovo ThinkVantage
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    Restore icon is activated. ThinkVantage System Update The ThinkVantage System Update program helps you keep the software on your computer up-to-date by downloading and installing software packages (ThinkVantage applications, device drivers, BIOS updates, and other third party applications). Adobe
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    indicators on the front of your computer. Figure 1. Front connector, control, and indicator locations 1 Hard disk drive activity indicator 2 Power indicator 3 Power switch 4 Optical drive eject/close button 5 USB connector (USB port 1) 6 Headphone connector 7 Microphone connector 8 USB connector
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    VGA monitor connector 5 DisplayPort connector 6 USB connectors (USB ports 3 to 8) 7 Ethernet connector 8 Microphone connector 9 Audio line-out connector 10 Audio line-in connector 11 PCI Express x16 graphics card slot 12 PCI Express x1 card slot 13 PCI card slots (2) 14 Optional serial port (Serial
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    (optional) PS/2 mouse connector (optional) Serial port USB connector VGA monitor connector Description Used to attach an Ethernet cable for a local area network (LAN). Note: To operate the computer within FCC Class B limits, use a Category 5 Ethernet cable. Used to attach a microphone to your
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    2 Memory modules 3 Optical drive 4 Front audio and USB assembly 5 Internal speaker (available on some models) 6 PCI card (installed in some models) 7 Cover presence switch (also called intrusion switch) 8 Rear fan assembly 9 Power supply assembly 10 Microprocessor 12 ThinkCentre User Guide
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    Memory slot 4 (DIMM4) 21 Internal speaker connector 8 Thermal sensor connector 22 Front audio connector 9 24-pin power connector 23 PCI card slots (2) 10 Battery 24 PCI Express x1 card slot 11 Clear CMOS (Complementary Metal Oxide Semiconductor) /Recovery jumper 25 PCI Express x16 graphics
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    or a 2.5-inch solid state drive) 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. 14 ThinkCentre User Guide
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    The following is a sample of the machine type and model label. Figure 6. Machine type and model label Chapter 1. Product overview 15
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    16 ThinkCentre User Guide
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    help you optimize the use of your computer. Can I get my user guide in another language? The user guide is available in various languages on the Lenovo Support Web site at: http://www.lenovo.com/ThinkCentreUserGuides Where are my recovery discs? Lenovo provides a program that enables you to create
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    reader, do one of the following: • On the Windows 7 operating system, click Start ➙ All Programs ➙ Lenovo ThinkVantage Tools ➙ Fingerprint Reader. • On the Windows Vista operating system, click Start ➙ All Programs ➙ ThinkVantage ➙ ThinkVantage Fingerprint Software. Follow the instructions on the
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    not require an ac power source). The audio Windows desktop, click Start ➙ Control Panel ➙ Hardware and Sound. 2. In the Sound topic, click Adjust system volume. 3. Move the sliders up or down to raise or lower the volume of your computer. Using CDs and DVDs Your computer might have a DVD ROM drive
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    . Recording a CD or DVD If your computer comes with a recordable DVD drive, you can use the drive to record CDs or DVDs. To record a CD or DVD, do the following: 1. Click Start ➙ All Programs ➙ Corel DVD MovieFactory Lenovo Edition. 2. Follow the instructions on the screen. 20 ThinkCentre User Guide
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    For detailed information about using the Corel DVD MovieFactory program, see the help system for the program. You can also use Windows Media Player to record CDs and data DVDs. For more information, see "Help and Support" on page 111. Chapter 2. Using your computer 21
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    22 ThinkCentre User Guide
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    World Wide Web: http://www.lenovo.com/healthycomputing Arranging your workspace To get the most from your computer, arrange both the equipment you The backrest and seat of your chair should adjust independently and provide good support. The seat should have a curved front to relieve pressure on the
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    plug the computer power cord directly into an electrical outlet. • Keep power cords and cables neatly routed away from walkways and other areas where they might get kicked accidentally. For more information about power cords, see "Power cords and power adapters" on page vi. 24 ThinkCentre User Guide
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    information and upgrades. When you register your computer, information is entered into a database, which enables Lenovo to contact you in case of a recall or other severe problem. In addition, some locations offer extended privileges and services to registered users. Moving your computer to another
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    For power cord information and part numbers, go to: http://www.lenovo.com/powercordnotice 26 ThinkCentre User Guide
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    computer from logging in to the operating system when the computer computer cover is not properly installed or closed when you turn on the computer install or close your computer cover. See " Power-on Password, a Hard Disk Password, or both passwords beforehand, you can start the computer computer
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    computer cover Locking the computer cover helps prevent unauthorized people from gaining access to the inside of your computer. Your computer comes with a padlock loop so that the computer cover cannot be removed when a padlock is installed. Figure 7. Installing a padlock 28 ThinkCentre User Guide
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    for Kensington at: http://www.lenovo.com/support Figure 8. Integrated cable lock Using passwords You can set a variety of passwords through the Microsoft Windows operating system and through the BIOS of your computer to help deter unauthorized use of your computer. BIOS passwords You can use the
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    Solution program, your computer will have a higher level of security across the local network, the enterprise, Support for additional security devices, such as a fingerprint reader. • A means to recover a forgotten Windows or hard disk password. • An encrypted virtual disk drive ThinkCentre User Guide
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    latest version of the Client Security Solution program from the Lenovo Web site. To download the Client Security Solution program, go to http://www.lenovo.com/support. Then follow the instructions on the screen. Using and understanding firewalls A firewall can be hardware, software, or a combination
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    32 ThinkCentre User Guide
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    computer components carefully. Handle PCI cards, memory computer" on page 10 to identify the 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. © Copyright Lenovo
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    v. This section provides instructions on how to remove the computer cover. CAUTION: Turn off the computer and wait three to five minutes to let the computer cool before removing the computer cover. To remove the computer cover, do the following: 1. Remove any media from the drives and turn off all
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    instructions on how to remove and reinstall the front bezel. To remove and reinstall the front bezel, 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 card Attention: Do not open your computer
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    to install or replace a PCI card. Your computer has two standard PCI card slots, one PCI Express x1 card slot, and one PCI Express x16 graphics card slot. To install or replace a PCI card, do the following: 1. Turn off the computer and disconnect all power cords from electrical outlets. 2. Remove
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    from its static-protective package. 6. Install the new card into the appropriate slot on the system board. See "Locating parts on the system board" on page 13. Note: If you are installing a PCI Express x16 graphics card, make sure the memory slot retaining clips are closed before you install the
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    all power cords from electrical outlets. 2. Remove the computer cover. See "Removing the computer cover" on page 34. 3. Lay the computer on its side for easier access to the system board. 4. Locate the memory slots. See "Locating parts on the system board" on page 13. 38 ThinkCentre User Guide
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    slots. Depending on your computer model, you might need to remove the PCI Express x16 graphics card for easier access to the memory slots. See "Installing or replacing a PCI card" on page 35. 6. Depending on whether you are installing or replacing a memory module, do one of the following: • If
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    v. This section provides instructions on how to install or replace the optical drive. To install or replace an optical drive, 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 34
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    replacing an optical drive, disconnect the signal cable and the power cable from the rear of the optical drive, press the blue release button, and then slide the optical drive out of the front of the computer. Figure 17. Removing the optical drive 5. Install the optical drive retainer on the side
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    complete the installation or replacement, go to "Completing the parts replacement" on page 67. Installing or replacing the card reader Attention: Do not open your computer or attempt any repair before reading and understanding the "Important safety information" on page v. 42 ThinkCentre User Guide
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    43. For replacement, see "Replacing the card reader" on page 45. Installing the card reader To install 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
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    remove the card reader cover 2 from the front bezel. To remove the card read cover, pivot the two retaining clips 1 that secure the card reader cover outwards and then completely disengage the card reader cover from the front bezel. Figure 24. Removing the card reader cover 44 ThinkCentre User Guide
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    "Completing the parts replacement" on page 67. 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
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    . Refer to the "Lithium battery notice" in the ThinkCentre Safety and Warranty 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. 46 ThinkCentre User Guide
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    reading and understanding the "Important safety information" on page v. This section provides instructions on how to replace the power supply assembly. Although there are no moving parts in your computer after the power cord has been disconnected, the following warnings are required for your safety
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    label attached. There are no serviceable parts inside these components. If you suspect a problem with one of these parts, contact a service technician. To replace the power supply assembly, do the following: 1. Turn off the computer and disconnect all power cords from electrical outlets. 2. Remove
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    chassis. 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. 11. Secure the power supply assembly cables with the cable clips and ties in the
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    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 34. 3. Lay the computer on its side for easier access and fan assembly. Do not over-tighten the screws. 50 ThinkCentre User Guide
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    4 , and then fully tighten screw 3 . 10. Connect the heat sink and fan assembly cable computer cool before removing the computer cover. To replace the microprocessor, do the following: 1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect all power
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    the microprocessor straight up and out of the microprocessor socket. Figure 33. Removing the microprocessor Notes: a. Your microprocessor and socket might look different from the one illustrated. 52 ThinkCentre User Guide
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    in the socket. You can either look for the small triangle 1 on one corner of the microprocessor or note the orientation of the notches 2 on 10. Hold the new microprocessor by its sides and align the small triangle on one corner of the new microprocessor with the corresponding small triangle on one
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    to "Completing the parts replacement" on page 67. Installing the solid state drive Attention: Do not open your computer or attempt any repair before reading and understanding the "Important safety information" on page v. This section provides instructions on how to install the 2.5-inch solid state
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    section provides instructions on how to replace the primary hard disk drive. Note: Depending on your model type, your computer might come with a 2.5-inch solid state drive. To install the solid state drive, see "Installing the solid state drive" on page 54. To replace the primary hard disk drive, do
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    . Figure 38. Installing the hard disk drive into the bracket 10. Slide the new hard disk drive into the drive cage until it snaps into position. 11. Align the drive cage pivot pin with the slot 1 in the upper drive cage and slide the hard disk drive cage into the chassis. 56 ThinkCentre User Guide
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    54. This section provides instructions on how to replace the secondary hard disk drive. To replace the secondary hard disk drive, 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
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    the corresponding holes in the hard disk drive. Do not touch the circuit board 5 on the bottom of the hard disk drive. Figure 41. Installing the hard disk drive into the bracket 10. Slide the new hard disk drive into the hard disk drive cage until it snaps into position. 58 ThinkCentre User Guide
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    power cable to the new 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 67. Replacing the front fan assembly Attention: Do not open your computer
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    5. Release the two tabs 1 that attach the front fan assembly to the chassis as shown and then completely remove the front fan from the chassis. Figure 43. Removing the front fan assembly 60 ThinkCentre User Guide
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    " on page v. This section provides instructions on how to replace the rear fan assembly. To replace the rear fan assembly, 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 34
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    rear fan assembly by aligning the new rubber mounts with the corresponding holes in the chassis and push the rubber mounts through the holes. 62 ThinkCentre User Guide
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    " on page v. This section provides instructions on how to replace the front audio and USB assembly. To replace the front audio and USB assembly, do the following: 1. Turn off the computer and disconnect all power cords from electrical outlets. 2. Remove the computer cover. See "Removing the
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    the chassis. 10. Install the computer or attempt any repair before reading and understanding the "Important safety information" on page v. This section provides instructions on how to replace the internal speaker. Note: The internal speaker is only available on some models. 64 ThinkCentre User Guide
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    To replace the internal speaker, 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 34. 3. Locate the internal speaker connector on the system board. See "Locating parts on the
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    reading and understanding the "Important safety information" on page v. This section provides instructions on how to replace the keyboard or mouse. To replace the keyboard or mouse, do the following: 1. Disconnect the old keyboard cable or mouse cable from the computer. 66 ThinkCentre User Guide
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    or mouse to one of the USB connectors on the computer. Depending on where you want to connect the new keyboard or mouse, see "Locating connectors, controls, and indicators on the front of your computer" on page 9 or "Locating connectors on the rear of your computer" on page 10. Figure 50. Connecting
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    CRU or will come a few days after the CRU arrives. 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. 68 ThinkCentre User Guide
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    Windows license permits you to create only one data medium, so it is important that you store the recovery media in a safe place after you have made them. Creating recovery media This section provides instructions on how to create recovery media on different operating systems. © Copyright Lenovo
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    Windows operating system and applications only while keeping the other data on your hard disk drive. Performing a backup operation This section provides instructions on how to perform a backup operation using the Rescue and Recovery program on different operating systems. 70 ThinkCentre User Guide
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    Back up your hard drive and select backup operation options. Then, follow the instructions on the screen to complete the backup operation. • To perform a backup operation using the Rescue and Recovery program on the Windows Vista operating system, do the following: 1. From the Windows desktop, click
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    workspace fails to open, see "Solving recovery problems" on page 75. 4. Do one of the following: • To rescue files from your hard disk drive or from a backup, click Rescue files and follow the instructions on the screen. • To restore your hard disk drive from a Rescue and Recovery backup or to
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    using a USB hard disk drive, use the following instructions to use the rescue medium: 1. Attach the USB hard disk drive to one of the USB connectors on your computer. 2. Repeatedly press and release the F12 key when turning on the computer. When the Please select boot device window opens, release
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    when it is necessary to correct a problem with your computer. To reinstall the device driver for a factory-installed device, do the following: 1. Turn on the computer. 2. Use Windows Explorer or My Computer to display the directory structure of your hard disk drive. 3. Go to the C:\SWTOOLS directory
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    information about reinstalling device drivers that came with your computer, see "Reinstalling preinstalled applications and device drivers" on page 73. Solving recovery problems If you are unable to access the Rescue and Recovery workspace or the Windows environment, do one of the following: • Use
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    hard disk drive has been removed from your computer or the memory module size has decreased, an error message will be displayed when you start the computer and you will be prompted to do one the instructions on the screen. You can use either the keyboard or the mouse to navigate through BIOS menu
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    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. 78 ThinkCentre User Guide
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    cord. See "Completing the parts replacement" on page 67. 6. Turn on the computer and leave it on for approximately 10 seconds. Then, turn off the computer by holding the power switch for approximately five seconds. 7. Repeat step 1 through step 2. 8. Move the Clear CMOS /Recovery jumper back to
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    Lan and press Enter. 7. Select Disabled and press Enter. 8. Press F10 to save changes and exit the Setup Utility program. Press Enter when prompted to confirm the exit. Note: When ErP compliance mode is enabled, you can wake up your computer by doing one of the following: 80 ThinkCentre User Guide
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    instructions on the screen. 4. Press F10 to save changes and exit the Setup Utility program. Press Enter when prompted to confirm the exit. • Enabling the after power loss feature The after power loss feature enables your computer to wake up when the power supply times. Do one of the following
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    section provides instructions on how to update (flash) the BIOS from a disc. Note: You can download a self-starting bootable disc image (known as an ISO image) with the system program updates to create a system-program-update disc. Go to: http://www.lenovo.com/support To update (flash) the BIOS from
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    PCI card if removed. 7. Reinstall the computer cover and reconnect the power cords for the computer and monitor to electrical outlets. See "Completing the parts replacement" on page 67. 8. Turn on the computer and then insert the POST and BIOS update (flash update) disc into the optical drive. Wait
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    . The device drivers provided on the Windows Web site have not been tested by Lenovo and using them might cause unexpected problems. Obtain updated device drivers from Lenovo. 1. Go to http://www.lenovo.com/support. 2. Click Downloads and drivers. 3. Select the machine type of your computer from the
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    on your computer up-to-date. Update packages are stored on Lenovo servers and can be downloaded from the Lenovo Support Web site. Update packages can contain applications, device drivers, BIOS flashes, or software updates. When the System Update program connects to the Lenovo Support Web site
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    computer periodically to protect the surfaces and ensure trouble-free operation. CAUTION: Be sure to turn off the computer and monitor power switches before cleaning the computer and monitor screen. Computer keyboard. Optical mouse This section provides instructions on how to clean an optical mouse
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    using a Rescue medium such as a CD or DVD to recover from failures that prevent you from gaining access to the Windows environment or the Rescue and Recovery workspace on your hard disk drive. Moving your computer Take the following precautions before moving your computer. 88 ThinkCentre User Guide
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    3. Turn off the computer and all attached devices. Your hard disk drive automatically parks the read/write head in a nondata area. This prevents damage to the hard disk drive. 4. Unplug the power cords from electrical outlets. 5. Disconnect communication cables, such as modem or network cables, from
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    90 ThinkCentre User Guide
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    to help you troubleshoot your computer problems. Note: If you cannot correct the problem, have the computer serviced. For a list of service and support telephone numbers, refer to the ThinkCentre Safety and Warranty Guide that comes with your computer or go to the Lenovo Support Web site at
  • Lenovo ThinkCentre M81 | (English) User Guide - Page 104
    enabled in the BIOS settings of your computer. For more information about accessing and changing the BIOS settings, refer to your Chapter 7 "Using the Setup Utility program" on page 77. 4. Go to the "Troubleshooting" on page 92 and follow the instructions for the type of problem you are experiencing
  • Lenovo ThinkCentre M81 | (English) User Guide - Page 105
    automatically play when it is inserted into a drive" on page 94 • "Sound comes from one external speaker only" on page 94 • "No audio in DOS applications or games" on page 94 No audio in Windows Symptom: No audio in Windows Actions: • If you are using powered external speakers that have an On/Off
  • Lenovo ThinkCentre M81 | (English) User Guide - Page 106
    emulation. • Verify that the audio device drivers are correctly installed. See Microsoft Windows help system for more information. If these actions do not correct the problem, run the diagnostic programs (see "Diagnostic programs" on page 108 for instructions). If you need technical assistance, see
  • Lenovo ThinkCentre M81 | (English) User Guide - Page 107
    programs (see "Diagnostic programs" on page 108 for instructions). If you need technical assistance, see Chapter 11 "Getting information, help, and service" on page 111. DVD problems Select your symptom from the following list: • "Black screen instead of DVD video" on page 95 • "DVD movie will not
  • Lenovo ThinkCentre M81 | (English) User Guide - Page 108
    Desktop Themes. • Ensure that video resolution is set to less than 1152 x 864. If these actions do not correct the problem, run the diagnostic programs (see "Diagnostic programs" on page 108 for instructions). If you need technical assistance, see Chapter 11 "Getting information, help, and service
  • Lenovo ThinkCentre M81 | (English) User Guide - Page 109
    than 1152 x 864. • On computers that have a CD-ROM or CD-RW drive in addition to a DVD-ROM drive, make sure that the DVD disc is in the drive labeled "DVD". If these actions do not correct the problem, run the diagnostic programs (see "Diagnostic programs" on page 108 for instructions). If you need
  • Lenovo ThinkCentre M81 | (English) User Guide - Page 110
    Communications LED is on and the wireless Keyboard does not work, restart your computer. If restarting your computer does not solve the problem, verify that the following conditions are met: • The batteries are properly installed. • The batteries still retain their current. 98 ThinkCentre User Guide
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    monitor connector on the computer. A loose cable can cause intermittent problems. • Verify that the necessary device drivers for the application programs are installed. Refer to the documentation for the affected application program to see if device drivers are required. Chapter 10. Troubleshooting
  • Lenovo ThinkCentre M81 | (English) User Guide - Page 112
    service" on page 111 for details. Networking problems The following are the most common networking problems. Select your networking problem from the following list: • "Ethernet problems" on page 101 • "A wireless LAN problem" on page 102 • "A wireless WAN problem" on page 102 100 ThinkCentre User
  • Lenovo ThinkCentre M81 | (English) User Guide - Page 113
    " on page 102 For more information, see "Help and Support" on page 111. Ethernet problems For Ethernet problems, select your symptom from the following list: • "Your computer cannot connect to the network" on page 101 • "The adapter stops working for no apparent reason" on page 101 • "If your
  • Lenovo ThinkCentre M81 | (English) User Guide - Page 114
    : The WAN card is not supported on this computer. Remove it. Note: Some computer models do not have a wireless WAN. Bluetooth problems For Bluetooth problems, select your symptom from the following list: • "Sound does not come from the Bluetooth headphone" on page 103 102 ThinkCentre User Guide
  • Lenovo ThinkCentre M81 | (English) User Guide - Page 115
    for each adapter. If these actions do not correct the problem, run the diagnostic programs (see "Diagnostic programs" on page 108 for instructions). If you need technical assistance, see Chapter 11 "Getting information, help, and service" on page 111. Chapter 10. Troubleshooting and diagnostics 103
  • Lenovo ThinkCentre M81 | (English) User Guide - Page 116
    on page 108 for instructions). If you need technical assistance, see Chapter 11 "Getting information, help, and service" on page 111. Performance and lockup problems Poor performance and lockup problems can be a result of any of the following: • "Insufficient free hard disk drive space" on page 104
  • Lenovo ThinkCentre M81 | (English) User Guide - Page 117
    Click Turn Windows features on or off. 4. A list of optional Windows components is displayed. Follow the instructions on the screen. - 1. Click Start ➙ Computer. 2. Right-click your C drive entry and files Symptom: Excessive number of fragmented files Chapter 10. Troubleshooting and diagnostics 105
  • Lenovo ThinkCentre M81 | (English) User Guide - Page 118
    , see Chapter 11 "Getting information, help, and service" on page 111. For step-by-step instructions on installing memory, see "Installing or replacing a memory module" on page 38. If these actions do not correct the problem, run the diagnostic programs (see "Diagnostic programs" on page 108 for
  • Lenovo ThinkCentre M81 | (English) User Guide - Page 119
    . If you cannot correct the problem, have the computer serviced. See Chapter 11 "Getting information, help, and service" on page 111. Serial port problems Use this information to troubleshoot the serial port and devices attached to the serial port. Symptom: Serial port cannot be accessed. Actions
  • Lenovo ThinkCentre M81 | (English) User Guide - Page 120
    loaded correctly. • Make sure any device drivers or other software supplied with the USB device is correctly installed. computer. You can use the preinstalled diagnostic program to diagnose computer problems, if your computer is running the Windows operating system. Notes: 108 ThinkCentre User Guide
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    computer problems, create bootable diagnostic media, update system drivers, and view system information. • To run the Lenovo ThinkVantage Toolbox program on the Windows 7 operating system, click Start ➙ All Programs ➙ Lenovo ThinkVantage Tools ➙ System Health and Diagnostics. Follow the instructions
  • Lenovo ThinkCentre M81 | (English) User Guide - Page 122
    computer to access the diagnostic program. 3. Follow the instructions on the screen to select the diagnostic test you want to run. Note: For additional help, press the F1 key. 4. Remove the diagnostic disc from the optical drive when you complete the diagnostic process. 110 ThinkCentre User Guide
  • Lenovo ThinkCentre M81 | (English) User Guide - Page 123
    your computer. Help and Support The Windows Help and Support information system guides you to various help and support information from Lenovo and Microsoft, such as updating drivers, accessing ThinkVantage Technologies, and accessing user manuals. To access the Windows Help and Support information
  • Lenovo ThinkCentre M81 | (English) User Guide - Page 124
    • Purchase upgrades and extended hardware repair services. • Download the latest device drivers and software updates for your computer model. • Access the online manuals for your products. • Access the Lenovo Limited Warranty. • Access troubleshooting and support information for your computer model
  • Lenovo ThinkCentre M81 | (English) User Guide - Page 125
    BIOS as part of an installation or upgrade • Changes, modifications, or upgrades to device drivers • Installation and maintenance of network operating systems (NOS) • Installation and maintenance of application programs Refer to the ThinkCentre Safety and Warranty Guide that comes with your computer
  • Lenovo ThinkCentre M81 | (English) User Guide - Page 126
    ; network setup and configuration; upgraded or extended hardware repair services; and custom installations. Service availability and service name might vary by country or region. For more information about these services, go to the Lenovo Web site at: http://www.lenovo.com 114 ThinkCentre User Guide
  • Lenovo ThinkCentre M81 | (English) User Guide - Page 127
    the operation of any other product, program, or service. Lenovo may have patents or pending patent applications covering support applications where malfunction may result in injury or death to persons. The information contained in this document does not affect or change Lenovo product specifications
  • Lenovo ThinkCentre M81 | (English) User Guide - Page 128
    of Lenovo in the United States, other countries, or both: Lenovo The Lenovo logo Rescue and Recovery ThinkCentre ThinkVantage Microsoft, Windows, and Windows Vista countries, or both. Other company, product, or service names may be trademarks or service marks of others. 116 ThinkCentre User Guide
  • Lenovo ThinkCentre M81 | (English) User Guide - Page 129
    Lenovo personal computer machine types 0268, 1730, 1943, 4166, 4169, 5030, 5048, 5069, and 7517 accordance with the instructions, may cause harmful try to correct the interference by one or more of the following measures: authorized dealer or service representative for help. Lenovo is not responsible
  • Lenovo ThinkCentre M81 | (English) User Guide - Page 130
    non-recommended modification of the product, including the installation of option cards from other manufacturers. This product has been tested and found to Konformitätserklärung nach Paragraf 5 des EMVG ist die Lenovo (Deutschland) GmbH, Gropiusplatz 10, D-70563 Stuttgart. 118 ThinkCentre User Guide
  • Lenovo ThinkCentre M81 | (English) User Guide - Page 131
    the computer was purchased, you might have received additional printed regulatory notices. 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 and click User Guides & Manuals
  • Lenovo ThinkCentre M81 | (English) User Guide - Page 132
    120 ThinkCentre User Guide
  • Lenovo ThinkCentre M81 | (English) User Guide - Page 133
    to responsibly recycle their equipment when it is no longer needed. Lenovo offers a variety of programs and services to assist equipment owners in recycling their IT products. For information on recycling Lenovo products, go to: http://www.lenovo.com/recycling © Copyright Lenovo 2011, 2012 121
  • Lenovo ThinkCentre M81 | (English) User Guide - Page 134
    on the system board of your Lenovo computer to provide power to the computer clock while the computer is off or disconnected from the main power source. If you want to replace it with a new one, contact your place of purchase or ask for a repair service provided by Lenovo. If you have replaced it by
  • Lenovo ThinkCentre M81 | (English) User Guide - Page 135
    and accumulators on the environment and human health due to the potential presence of hazardous substances. For proper collection and treatment, go to: http://www.lenovo.com/lenovo/environment Appendix C. WEEE and recycling information 123
  • Lenovo ThinkCentre M81 | (English) User Guide - Page 136
    124 ThinkCentre User Guide
  • Lenovo ThinkCentre M81 | (English) User Guide - Page 137
    Appendix D. Restriction of Hazardous Substances Directive (RoHS) 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 Electrical and Electronic Equipment (
  • Lenovo ThinkCentre M81 | (English) User Guide - Page 138
    India RoHS RoHS compliant as per E-Waste (Management & Handling) Rules, 2011. 126 ThinkCentre User Guide
  • Lenovo ThinkCentre M81 | (English) User Guide - Page 139
    connector 10 documentation, using 112 drivers, device 68 © Copyright Lenovo 2011, 2012 drives bays 14 specifications 14 E environment, operating 5 Ethernet 1 Ethernet connector 11 exiting, Setup Utility 81 expansion 3 external options, installing 33 F failure, recovering from POST/BIOS 84
  • Lenovo ThinkCentre M81 | (English) User Guide - Page 140
    slots 35 physical specifications 5 power 128 ThinkCentre User Guide features 3 power supply assembly, replacing 47 power-on self-test (POST) 83 Power-On, Password 78 productivity center, ThinkVantage 111 programs, updating system 83 purchasing additional services 114 R rear connectors 10 rear fan
  • Lenovo ThinkCentre M81 | (English) User Guide - Page 141
    basic 91 troubleshooting, diagnostics 91 U updating (flashing) the BIOS 83 system programs 83 updating (flashing) the BIOS 84 USB connector 11 using a rescue medium, creating and 72 diagnostic programs 112 documentation 112 other services 113 passwords 77 Setup Utility 77 V VGA monitor connector 11
  • Lenovo ThinkCentre M81 | (English) User Guide - Page 142
    130 ThinkCentre User Guide
  • Lenovo ThinkCentre M81 | (English) User Guide - Page 143
  • Lenovo ThinkCentre M81 | (English) User Guide - Page 144
    Part Number: 0A23110 Printed in USA (1P) P/N: 0A23110 *1P0A23110*
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ThinkCentre
User Guide
Machine Types:
0268, 1730, 1943, 4166, 4169, 5030, 5048, 5069,
and 7517