Lenovo H520g Lenovo H520g Hardware Maintenance Manual

Lenovo H520g Manual

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    Lenovo H520g Hardware Maintenance Manual ideaideaideaCentreidea Machine Types: 90A3
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    product it supports, be sure to read and understand Chapter 2 "Safety information" on page 3 and Appendix A "Notices" on page 103. First Edition (January 2013) © Copyright Lenovo 2013. LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant a General Services Administration
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    Specifications 29 Lenovo Support Web site 30 Chapter 4. General checkout . . . . . 31 Problem determination tips 31 Chapter 5. Troubleshooting and diagnostics 33 Basic troubleshooting 33 Accessing Control Panel on the Windows 8 operating system 34 Troubleshooting procedure 34 Troubleshooting
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    BIOS update failure 101 Power management 102 Advanced Configuration and Power Interface (ACPI) BIOS 102 Automatic Power-on features 102 Appendix A. Notices 103 Television output notice 104 European conformance CE mark 104 Trademarks 104 Index 105 ii Lenovo H520gHardware Maintenance Manual
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    11 "Additional service information" on page 99 are not specific to any machine type. These chapters are applicable to all Lenovo H520g computers. For major FRU locations and Customer Replaceable Unit (CRU) identification, see Chapter 8 "Locations" on page 65. For FRU replacement instructions, see
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    2 Lenovo H520gHardware Maintenance Manual
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    servicing a computer. ensure that other service representatives and the from all personnel, while you are servicing the machine. • Keep your tool . • After service, reinstall all power power cords, telecommunication systems, networks, and modems before you open the centre covers, unless instructed
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    damage. • Do not service the following parts with the power on when they are removed from their normal operating places in a machine: - Power supply units - Pumps do not become a victim yourself. - Switch off power. - Send another person to get medical aid. 4 Lenovo H520gHardware Maintenance Manual
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    The guide consists of a series of steps presented in a checklist. Begin the checks with the power off, and the power cord disconnected. Checklist: 1. Check exterior covers for damage (loose, broken, or sharp edges). 2. Power-off the computer. Disconnect the power cord. 3. Check the power cord
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    power-supply cover fasteners (screws or rivets) have not been removed or tampered with. Handling electrostatic discharge-sensitive devices Any computer below, to provide protection that meets the specific service requirement. Note: The use of a grounding 6 Lenovo H520gHardware Maintenance Manual
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    • Do not connect or disconnect any cables or perform installation, maintenance, or reconfiguration of this product during an electrical storm. • Connect all power cords to a properly wired and grounded electrical outlet. • Connect to properly wired outlets any equipment that will be attached to this
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    on the power supply do not turn off the electrical current supplied to the device. The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source. 2 1 8 Lenovo H520gHardware Maintenance Manual
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    Chapter 2. Safety information 9
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    ≥18 kg (37 lbs) ≥32 kg (70.5 lbs) ≥55 kg (121.2 lbs) 2 1 PERIGO A corrente elétrica proveniente de cabos de alimentação, de telefone e de comunicações é perigosa. 10 Lenovo H520gHardware Maintenance Manual
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    • 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: • Não remova as tampas. A remo
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    cabo de alimentação. Para remover toda a corrente elétrica do dispositivo, assegure que todos os cabos de alimentação estejam desconectados da fonte de alimentação. 2 1 12 Lenovo H520gHardware Maintenance Manual
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    Chapter 2. Safety information 13
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    2 1 14 Lenovo H520gHardware Maintenance Manual
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    2 1 Chapter 2. Safety information 15
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    lithium usagée par une pile de référence identique exclusivement, (référence 45C1566), ou suivre les instructions du fabricant qui en définit les équivalences. Si votre système est doté d'un Pour la mise au rebut, se reporter à la réglementation en vigueur. 16 Lenovo H520gHardware Maintenance Manual
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    , des unités à fibres optiques, ou des émetteurs) sont installés, prenez connaissance des informations suivantes : • Ne retirez pas le carter. En ouvrant l'unité de CD-ROM ou de DVD-ROM, vous vous exposez au rayonnement dangereux du laser. Aucune pièce de l'unité n'est réparable. • Pour éviter tout
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    enthalten sind. • Zum Installieren, Transportieren und Öffnen der Abdeckungen des Computers oder der angeschlossenen Einheiten die Kabel gemäß der folgenden Tabelle anschließen Entsorgung explodieren. Die Batterie nicht: • mit Wasser in Berührung bringen. 18 Lenovo H520gHardware Maintenance Manual
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    oder zerlegen. Die örtlichen Bestimmungen für die Entsorgung von Sondermüll beachten. ACHTUNG: Bei der Installation von Lasergeräten (wie CD-ROM-Laufwerken, DVD- aufwerken, Einheiten mit Lichtwellenleitertechnik oder Sendern) Folgendes beachten: • Die Abdeckungen nicht entfernen. Durch Entfernen der
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    2 1 20 Lenovo H520gHardware Maintenance Manual
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    2 1 Chapter 2. Safety information 21
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    gradi F) • Smontarla, ricaricarla o tentare di ripararla Le batterie usate vanno smaltite in accordo alla normativa in vigore (DPR 915/82 e successive disposizioni e disposizioni locali). 22 Lenovo H520gHardware Maintenance Manual
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    ATTENZIONE: Quando vengono installati prodotti laser (quali CD-ROM, unità DVD-ROM, unità a fibre ottiche o trasmittenti di controlli, regolazioni o l'esecuzione di procedure non descritti nel presente manuale possono provocare l'esposizione a radiazioni pericolose. PERICOLO Alcune unità laser
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    24 Lenovo H520gHardware Maintenance Manual
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    2 1 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
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    las leyes o normas locales. PRECAUCIÓN: Cuando haya productos láser (como unidades de CD-ROM, unidades de DVD, dispositivos de fibra óptica o transmisores) instalados, tenga en especificados aquí, podría exponerse a radiaciones peligrosas. PELIGRO 26 Lenovo H520gHardware Maintenance Manual
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    Algunos productos láser tienen incorporado un diodo láser de clase 3A o clase 3B. Tenga en cuenta lo siguiente: Cuando se abre, queda expuesto a radiación láser. No mire directamente al rayo láser, ni siquiera con instrumentos ópticos, y evite exponerse directamente al rayo láser. ≥18 kg ≥32 kg
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    28 Lenovo H520gHardware Maintenance Manual
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    general information that applies to all machine types supported by this manual. Specifications This section lists the physical specifications for your computer. Dimensions Width: 160 mm (6.3 inches) frequency range: 50/60 Hz Voltage-selection switch setting: 230 V ac © Copyright Lenovo 2013 29
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    on the Lenovo Support Web site at: http://www.lenovo.com/support This Web site is updated with the latest support information such as the following: • Drivers and software • Diagnostic solutions • Product and service warranty • Product and parts details • User guides and manuals • Knowledge base
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    on how to determine and obtain the latest level BIOS, see "BIOS levels" on page 99. Use the following procedure to help determine the cause of a problem: 1. Power-off the computer and all external devices. 2. Check all cables and power cords. 3. Set all display controls to the middle position
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    identical only if they: 1. Are the exact machine type and models 2. Have the same BIOS level 3. Have the same adapters/attachments in the same locations 4. Have the same address jumpers "working and non-working" systems will often lead to problem resolution. 32 Lenovo H520gHardware Maintenance Manual
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    information 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 Safety, Warranty, and Setup Guide that comes with your computer or go to the Lenovo Support Web site at
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    enabled in the BIOS settings of your computer. For more information about accessing and changing the BIOS settings, refer to your Chapter 6 "Using the Setup Utility program" on page 53. 4. Go to the "Troubleshooting" on page 35 and follow the instructions for the type of problem you are experiencing
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    these actions solve the problem, seek technical assistance. See "Lenovo Support Web site" on page 30 for more information. Troubleshooting Use the troubleshooting information to find solutions to problems that have definite symptoms. If the symptom your computer is experiencing occurred immediately
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    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 "Lenovo Solution Center" on page 51 for instructions). If you need technical assistance, see "Lenovo Support Web site
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    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 51 for instructions). If you need technical assistance, see "Lenovo Support Web site" on page 30. Chapter 5. Troubleshooting and diagnostics 37
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    disc with coding for the region where you are using your computer. If these actions do not correct the problem, run the diagnostic programs (see "Lenovo Solution Center" on page 51 for instructions). If you need technical assistance, see "Lenovo Support Web site" on page 30. No audio or intermittent
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    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 51 for instructions). If you need technical assistance, see "Lenovo Support Web site" on page 30. Hard disk drive
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    power cables are connected correctly. • Ensure that the hard disk drive your computer problem, run the diagnostic program Lenovo Solution Center. See "Lenovo Solution Center" on page 51. If you need technical assistance, see "Lenovo Support on the computer. • If problems On the Windows 7 Windows
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    If these actions do not correct the problem, have the computer and keyboard serviced. See "Lenovo Support Web site" on page 30 for details. The mouse or pointing device does not work Symptom: The mouse or pointing device does not work. Actions: •
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    the affected application program to see if device drivers are required. If these actions do not correct the problem, run the diagnostic programs (see "Lenovo Solution Center" on page 51 for instructions). If you need technical assistance, see "Lenovo Support Web site" on page 30. The image appears
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    On the Windows 7 operating Lenovo Support Web site" on page 30. Ethernet problems For Ethernet problems, select your symptom from the following list: • "Your computer cannot connect to the network" on page 44 • "The adapter stops working for no apparent reason" on page 44 Chapter 5. Troubleshooting
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    adapters, you might not be using the correct driver or the driver is not enabled. To update the driver, right-click the highlighted adapter. 5. Click Update Driver Software, and then follow the instructions on the screen. On the Windows 8 operating system, do the following: 1. Open Control Panel
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    case-sensitive information. A wireless WAN problem Message: Unauthorized WAN card is plugged in - Power off and remove the WAN card. Action: The WAN card is not supported on this computer. Remove it. Note: Some computer models do not have a wireless WAN. Chapter 5. Troubleshooting and diagnostics 45
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    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. Select your symptom from the following
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    that the option and any required device drivers are installed correctly. If these actions do not correct the problem, run the diagnostic programs (see "Lenovo Solution Center" on page 51 for instructions). If you need technical assistance, see "Lenovo Support Web site" on page 30. Performance and
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    Windows components is displayed. Follow the instructions on the screen. • Procedure 3 1. On the Windows 7 operating system, click Start ➙ Computer. On the Windows 8 operating system, open the Windows Explorer and click Computer the Windows Disk windows. 2. Open the Windows Explorer and click Computer
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    in the documentation that comes with your printer. If you cannot correct the problem, have the computer serviced. See "Lenovo Support Web site" on page 30. Serial port problems Use this information to troubleshoot the serial port and devices attached to the serial port. Symptom: Serial port
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    the instructions on the screen. • If you are unable to resolve the problem through other methods, uninstall the software program and reinstall it. If these actions do not correct the problem, you might need technical assistance. Contact your software manufacturer or see "Lenovo Support Web site
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    sure any device drivers or other 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. Notes: • The Lenovo Solution Center program can be downloaded
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    52 Lenovo H520gHardware Maintenance Manual
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    of passwords are available: • Power-On Password • 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. © Copyright Lenovo 2013 53
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    if the hard disk drive is removed from one computer and installed in another. • If the Hard 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. 54 Lenovo H520gHardware Maintenance Manual
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    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. Remove the computer cover. 3. Locate the Clear CMOS /Recovery jumper on the system board. 4. Move the jumper from
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    feature enables your computer to wake up when the power supply resumes after a sudden loss of electricity. To enable the after power loss feature, do the following: 1. Start the Setup Utility program. See "Starting the Setup Utility program" on page 53. 56 Lenovo H520gHardware Maintenance Manual
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    Power ➙ After Power Loss, and press Enter. 3. Select Power On and press Enter. 4. Press F10 to save changes and exit the Setup Utility program. Press Enter when prompted to confirm the exit. Changing the BIOS press Enter. When the Reset Without Saving window opens, select Yes, and then press Enter
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    checkout" on page 31. You can use this index to help you decide which FRUs are needed when servicing a computer. If you are unable to correct the problem using this index, go to "Undetermined problems" on page 63. Notes: 1. If you have both an error message and an incorrect audio response, diagnose
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    Boot-block recovery. See "Recovering from a POST and BIOS update Power-On problem. This error message is displayed when the memory size has decreased. Press F1 to enter the Setup Utility program. Then press F10 to save and exit the Setup Utility program. 60 Lenovo H520gHardware Maintenance Manual
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    Setup Utility program. More than one external fingerprint reader is attached. Power off and remove all but the reader that you set up within computer. No operating system found. Press any key This error occurs only after the POST is completed. to repeat boot sequence. Press any key to repeat boot
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    Computer will not power-off. See "Hard disk drive boot error" on page 59. 1. Power Switch 2. System Board 3. Riser card, if installed Computer (if present) 3. System Board No power or fan not running 1. See "Hard disk drive boot error" on page 59. 62 Lenovo H520gHardware Maintenance Manual
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    If you encounter undetermined problems, do the following: 1. Turn off the computer and the power. 2. Remove or disconnect the following components (if installed) one at a time. a. External devices (modem, printer, or mouse) b. Any adapter cards c. Memory modules Chapter 7. Symptom-to-FRU index
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    drive 3. Turn on the power and the computer to re-test the system. 4. Repeat steps 1 through 3 until you find the failing device or adapter cards. If all devices and adapter cards have been removed, and the problem continues, replace the system board. 64 Lenovo H520gHardware Maintenance Manual
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    of your computer. Figure 1. Front connector, control, and indicator locations 1 Power switch 2 Hard disk drive activity indicator 3 Optical drive eject/close button 4 Memory card reader (optional) 5 Headphone connector 6 Microphone connector 7 USB connectors (USB ports 2) © Copyright Lenovo 2013
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    (available on some models) 2 Power cord connector 3 DVI monitor connector 4 VGA monitor connector 5 USB connectors (USB ports 3 to 6) 6 Microphone connector 7 Audio line-out connector 8 Audio line-in connector 9 PCI Express x16 graphics card slot 10 PCI Express x1 card slots (2) 11 Integrated cable
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    panel is removed, the specific CRU is visible. Number 1 2 3 4 5 6 7 8 FRU description Heat sink and fan assembly Memory modules Front bezel Hard disk drive PCI card (installed in some models) PCI Express x16 graphics card slot System board Power supply assembly Self-service CRU No Yes Yes No
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    power switch) 11 Front USB connector 1 (for connecting USB ports 1 and 2 on the front bezel) 12 Clear CMOS (Complementary Metal Oxide Semiconductor) /Recovery 19 PCI Express x1 card slots (2) 20 PCI Express x16 graphics card slot 21 System fan connector 68 Lenovo H520gHardware Maintenance Manual
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    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 replacing hardware" on page 71 for instructions on how to install or replace internal drives for your computer. Figure 5 "Drive bay locations
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    70 Lenovo H520gHardware Maintenance Manual
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    To obtain a copy of the User Guide, go to: http://www.lenovo.com/ThinkCentreUserGuides 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. © Copyright
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    understanding the "Important safety information" in the User Guide. To obtain a copy of the User Guide, go to: http://www.lenovo.com/ThinkCentreUserGuides 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
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    Attention: Do not open your computer or attempt any repair before reading and understanding the "Important safety information" in the User Guide. To obtain a copy of the User Guide, go to: http://www.lenovo.com/ThinkCentreUserGuides This section provides instructions on how to remove and reinstall
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    information" in the User Guide. To obtain a copy of the User Guide, go to: http://www.lenovo.com/ThinkCentreUserGuides This section provides instructions on how to install or replace a PCI card. Your computer has two PCI Express x1 card slots and one PCI Express x16 graphics card slot. To install or
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    3. At the rear of the computer, remove the screw that secures the PCI card latch. Figure 9. Removing the screw that secures the PCI card latch 4. Depending on whether you are installing or replacing a PCI card, do one of the following: • If you are installing a PCI card, remove the appropriate metal
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    on the system board" on page 68. Note: If you are installing a PCI Express x16 graphics card, make sure the memory slot retaining clips are closed before you install the graphics card. 7. Pivot the card latch to the closed position to secure the PCI card. 76 Lenovo H520gHardware Maintenance Manual
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    or attempt any repair before reading and understanding the "Important safety information" in the User Guide. To obtain a copy of the User Guide, go to: http://www.lenovo.com/ThinkCentreUserGuides Your computer has a special type of memory that maintains the date, time, and settings for built-in
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    and understanding the "Important safety information" in the User Guide. To obtain a copy of the User Guide, go to: http://www.lenovo.com/ThinkCentreUserGuides This section provides instructions on how to install or replace a memory module. Your computer has two slots for installing or replacing DDR3
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    parts that might prevent your access to the memory 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 74. 6. Depending on whether you are installing or replacing
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    Attention: Do not open your computer or attempt any repair before reading and understanding the "Important safety information" in the User Guide. To obtain a copy of the User Guide, go to: http://www.lenovo.com/ThinkCentreUserGuides This section provides instructions on how to install or replace
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    Figure 17. Removing the optical drive 5. Slide the new optical drive into the drive bay from the front and align the screw holes in the new optical drive with the corresponding holes in the drive bay. Then, install the three screws to secure the new optical drive in place. Figure 18. Installing the
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    Attention: Do not open your computer or attempt any repair before reading and understanding the "Important safety information" in the User Guide. To obtain a copy of the User Guide, go to: http://www.lenovo.com/ThinkCentreUserGuides This section provides instructions on how to replace the heat
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    6. Follow this sequence to remove the four screws that secure the heat sink and fan assembly to the system board: a. Partially remove screw 1 , then fully remove screw 2 , and then fully remove screw 1 . b. Partially remove screw 3 , then fully remove screw 4 , and then fully remove screw 3 . Note:
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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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    Attention: Do not open your computer or attempt any repair before reading and understanding the "Important safety information" in the User Guide. To obtain a copy of the User Guide, go to: http://www.lenovo.com/ThinkCentreUserGuides This section provides instructions on how to replace the
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    up and out of the microprocessor socket. Figure 23. Removing the microprocessor Notes: a. Your microprocessor and socket might look different from the one illustrated. 86 Lenovo H520gHardware Maintenance Manual
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    b. Note the orientation of the microprocessor 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 the microprocessor. This is important when installing the new microprocessor on the system board. c. Touch only
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    Attention: Do not open your computer or attempt any repair before reading and understanding the "Important safety information" in the User Guide. To obtain a copy of the User Guide, go to: http://www.lenovo.com/ThinkCentreUserGuides This section provides instructions on how to replace the system
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    assembly cable to the new system board. See "Replacing the heat sink and fan assembly" on page 82. 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 78 and "Installing or replacing a PCI
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    computer or attempt any repair before reading and understanding the "Important safety information" in the User Guide. To obtain a copy of the User Guide, go to: http://www.lenovo.com/ThinkCentreUserGuides This section provides instructions the signal cable and the power cable from the hard disk
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    to an available SATA connector on the system board. See "Locating parts on the system board" on page 68. Then, locate an available five-wire power connector and connect it to the rear of the new hard disk drive. Chapter 9. Replacing FRUs 91
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    computer or attempt any repair before reading and understanding the "Important safety information" in the User Guide. To obtain a copy of the User Guide, go to: http://www.lenovo.com/ThinkCentreUserGuides This section provides instructions the system board. 92 Lenovo H520gHardware Maintenance Manual
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    After completing the installation or replacement for all parts, you need to reinstall the computer cover and reconnect cables. Depending on the parts you installed or replaced, you might need to confirm the updated information in the Setup Utility program. Refer to Chapter 6 "Using the Setup Utility
  • Lenovo H520g | Lenovo H520g Hardware Maintenance Manual - Page 98
    . 7. Reconnect the external cables and power cords to the computer. See "Locating connectors on the rear of your computer" on page 66. 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
  • Lenovo H520g | Lenovo H520g Hardware Maintenance Manual - Page 99
    Lenovo desktop computer Motherboard Intel H61 IVB DDR3 mATX(GA Level) Sumba - WIN8 Intel H61 IVB DDR3 mATX(GA Level) Sumba - WIN8 pro Intel i7-3770S Ivy Bridge 8MB LGA 3.10GHz 65W i5-3570S Ivy Bridge 6MB LGA 3.10GHz 65W i5-3470S Ivy Bridge 6MB LGA 2.9GHz 65W i3-3240 55W Ivy Bridge 3.4GHz 3MB 2C LGA i3
  • Lenovo H520g | Lenovo H520g Hardware Maintenance Manual - Page 100
    Rambo 8 - SATA 12XRAM WRITE for DOS DVD Recorder Rambo 8 - SATA 12XRAM WRITE for DOS 96 Lenovo H520gHardware Maintenance Manual 45K0408 2 45K0408 2 45K0408 2 03T7039 2 03T7039 2 45K0627 2 03T7039 2 45K0410 2 45K0410 2 45K0410 2 45K0410 2 03T7041 2 03T7041 2 45K0630
  • Lenovo H520g | Lenovo H520g Hardware Maintenance Manual - Page 101
    512M DVI+DP WIN8 ATX Video Card DVI_I(M)-VGA(F) adpater Keyboard Lenovo Slim New F5 USB Keyboard-WIN8 Lenovo Slim New F5 USB Keyboard-WIN8 Mouse Lenovo Enhanced Optical USB Mouse Lenovo Enhanced Optical USB Mouse Power Cord C13 Power Cord C13 Power Cord C13 Power Cord Power Supply Tower PS3 180W for
  • Lenovo H520g | Lenovo H520g Hardware Maintenance Manual - Page 102
    ,MB_RUBBER_02,Sumba 20L Front main FRU Front I_O cable FRU SATA CABLE FRU SATA CABLE 03T9960 N 03T9982 N 03T9983 N 03T9984 N 03T9985 N 41R6206 N 54Y8274 N 54Y9929 N 54Y9948 N 98 Lenovo H520gHardware Maintenance Manual
  • Lenovo H520g | Lenovo H520g Hardware Maintenance Manual - Page 103
    . • 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 "Flash update procedures" on page 99. Note: BIOS settings vary by operating system. Change
  • Lenovo H520g | Lenovo H520g Hardware Maintenance Manual - Page 104
    operating systems. 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 a disc on the Windows 8 (64-bit) operating system, do
  • Lenovo H520g | Lenovo H520g Hardware Maintenance Manual - Page 105
    following procedure. To update (flash) the BIOS from your operating system, do the following: 1. Go to http://www.lenovo.com/support. 2. Do the following to locate the downloadable files for your machine type: a. Click Download & Drivers. b. In the left pane, click Downloads and drivers. c. From the
  • Lenovo H520g | Lenovo H520g Hardware Maintenance Manual - Page 106
    on when it receives a specific signal from another computer on the local area network (LAN). To enable the Wake on LAN function or the Wake Up on Alarm function on the Windows 8 operating system, do the following: 1. Open Control Panel. 2. Click Hardware and Sound ➙ Power Options. 3. In the left
  • Lenovo H520g | Lenovo H520g Hardware Maintenance Manual - Page 107
    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 H520g | Lenovo H520g Hardware Maintenance Manual - Page 108
    countries, or both: Lenovo The Lenovo logo Rescue and Recovery ThinkVantage Microsoft and Windows are trademarks of the Microsoft group of companies. Intel is the trademark of Intel Corporation in the United States, other countries, or both. Other company, product, or service names may be trademarks
  • Lenovo H520g | Lenovo H520g Hardware Maintenance Manual - Page 109
    A Administrator, password 54 B basic troubleshooting 33 battery, replacing 77 BIOS settings, changing 57 Boot-block Recovery 101 C changing password 54 startup device sequence 56 CMOS, clearing 55 components, internal 66 computer cover removing 72 computer cover, reinstalling 93 connectors rear 66
  • Lenovo H520g | Lenovo H520g Hardware Maintenance Manual - Page 110
    Power-On, Password 54 R rear connectors 66 recovering from a POST and BIOS update failure 101 recovery Boot-block Recovery 101 removing computer cover 72 replacing battery 77 hard disk drive 90 heat sink and fan assembly 82 microprocessor 85 S security enabling or disabling 55 selecting startup
  • Lenovo H520g | Lenovo H520g Hardware Maintenance Manual - Page 111
  • Lenovo H520g | Lenovo H520g Hardware Maintenance Manual - Page 112
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Lenovo H520g
Hardware Maintenance Manual
Machine Types:
90A3