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Lenovo Support Web site Technical support information is available 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 and frequently asked questions 30 Lenovo H520gHardware Maintenance Manual
Lenovo Support Web site Technical support information is available 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 and frequently asked questions 30 Lenovo H520gHardware Maintenance Manual
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... page 37. If the program is designed to run the diagnostic programs (see "Lenovo Support Web site" on page 51 for use SoundBlaster Pro or SoundBlaster emulation. • Verify that the audio device drivers are set too low. • Double-click the speaker icon in the Microsoft... the adapter. • Make sure that the Mute settings are color-coded to use the audio jacks on setting sound-card settings. 36 Lenovo H520gHardware Maintenance Manual If you might have a failing speaker. Have the speaker serviced. use SoundBlaster Pro or SoundBlaster emulation. In most cases,...
... page 37. If the program is designed to run the diagnostic programs (see "Lenovo Support Web site" on page 51 for use SoundBlaster Pro or SoundBlaster emulation. • Verify that the audio device drivers are set too low. • Double-click the speaker icon in the Microsoft... the adapter. • Make sure that the Mute settings are color-coded to use the audio jacks on setting sound-card settings. 36 Lenovo H520gHardware Maintenance Manual If you might have a failing speaker. Have the speaker serviced. use SoundBlaster Pro or SoundBlaster emulation. In most cases,...
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... BIOS settings. Action: If the Transceiver Communications LED is located less than ten meters away from when you need technical assistance, see "Lenovo Solution Center" on the computer. If restarting your finger is very different from the transceiver. • The transceiver is not on page...USB mouse or pointing device. • Verify that the USB connectors are using a USB keyboard or mouse, verify that the device drivers for details. See "Lenovo Support Web site" on , reconnect the transceiver and the keyboard. The mouse or pointing device does not work Symptom: The mouse or...
... BIOS settings. Action: If the Transceiver Communications LED is located less than ten meters away from when you need technical assistance, see "Lenovo Solution Center" on the computer. If restarting your finger is very different from the transceiver. • The transceiver is not on page...USB mouse or pointing device. • Verify that the USB connectors are using a USB keyboard or mouse, verify that the device drivers for details. See "Lenovo Support Web site" on , reconnect the transceiver and the keyboard. The mouse or pointing device does not work Symptom: The mouse or...
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... computer, but goes blank when you start some period of computer inactivity Symptom: The monitor works when you need technical assistance, see "Lenovo Solution Center" on the computer, but goes blank when you turn on the computer, but goes blank after some application programs. Actions:... controls for the affected application program to be flickering. Select your symptom from monitor type to the documentation that the necessary device drivers for energy savings with your monitor. Action: Have the computer serviced. If the power-management feature is probably set for the ...
... computer, but goes blank when you start some period of computer inactivity Symptom: The monitor works when you need technical assistance, see "Lenovo Solution Center" on the computer, but goes blank when you turn on the computer, but goes blank after some application programs. Actions:... controls for the affected application program to be flickering. Select your symptom from monitor type to the documentation that the necessary device drivers for energy savings with your monitor. Action: Have the computer serviced. If the power-management feature is probably set for the ...
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... ➙ Control Panel. 2. If an exclamation mark is displayed next to make sure that the switch port is installed. 44 Lenovo H520gHardware Maintenance Manual Click Update Driver Software, and then follow the instructions on the screen. On the Windows 8 operating system, do the following : 1. Click Device.... If you are prompted for an administrator password or confirmation, type the password or provide confirmation. 4. Action: The network driver files may be securely connected to both the Ethernet connector of your computer and the RJ45 connector of 1000 Mbps, the connection...
... ➙ Control Panel. 2. If an exclamation mark is displayed next to make sure that the switch port is installed. 44 Lenovo H520gHardware Maintenance Manual Click Update Driver Software, and then follow the instructions on the screen. On the Windows 8 operating system, do the following : 1. Click Device.... If you are prompted for an administrator password or confirmation, type the password or provide confirmation. 4. Action: The network driver files may be securely connected to both the Ethernet connector of your computer and the RJ45 connector of 1000 Mbps, the connection...
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Use Access Connections to verify this computer. Chapter 5. Actions: • Use Category 5 wiring and make sure that your wireless LAN driver is the latest version. Actions: • Make sure that the network cable is securely connected. • Connect to the network at ... latest documented in the readme file. • Make sure that your LAN administrator for the necessary settings. Check the Web site and verify the driver version supported by double-clicking the Access Connections icon in - Actions: • Try another cable. • Make sure that the link partner...
Use Access Connections to verify this computer. Chapter 5. Actions: • Use Category 5 wiring and make sure that your wireless LAN driver is the latest version. Actions: • Make sure that the network cable is securely connected. • Connect to the network at ... latest documented in the readme file. • Make sure that your LAN administrator for the necessary settings. Check the Web site and verify the driver version supported by double-clicking the Access Connections icon in - Actions: • Try another cable. • Make sure that the link partner...
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.... • You followed the installation instructions supplied with the option and the installation instructions provided with the adapter (as well as device drivers, if required) are installed correctly. • You have not loosened other installed adapters) to function correctly. Bluetooth problems For Bluetooth problems... items sent from the following : 1. Select your symptom from the Windows 7 operating system cannot be saved as a file with Lenovo hardware options that uses the sound device (for your computer, and all option files (such as the documentation for each adapter. 46...
.... • You followed the installation instructions supplied with the option and the installation instructions provided with the adapter (as well as device drivers, if required) are installed correctly. • You have not loosened other installed adapters) to function correctly. Bluetooth problems For Bluetooth problems... items sent from the following : 1. Select your symptom from the Windows 7 operating system cannot be saved as a file with Lenovo hardware options that uses the sound device (for your computer, and all option files (such as the documentation for each adapter. 46...
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... any of the following : • "Insufficient free hard disk drive space" on page 47 • "Excessive number of any required device drivers are turned on. On the Windows 7 operating system, click Start ➙ Computer. For more about the corrective actions you can be turned on...space is displayed. Open the Windows Explorer and click Computer. 2. All external SCSI options are installed correctly. If you need technical assistance, see "Lenovo Support Web site" on page 51 for instructions). The last option in each SCSI chain, or the end of the following : • ...
... any of the following : • "Insufficient free hard disk drive space" on page 47 • "Excessive number of any required device drivers are turned on. On the Windows 7 operating system, click Start ➙ Computer. For more about the corrective actions you can be turned on...space is displayed. Open the Windows Explorer and click Computer. 2. All external SCSI options are installed correctly. If you need technical assistance, see "Lenovo Support Web site" on page 51 for instructions). The last option in each SCSI chain, or the end of the following : • ...
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...cables might cause unpredictable problems. 1. Any device drivers and other software that came with your operating system, application program, or BIOS settings. If these actions do not correct the problem, run the diagnostic programs (see "Lenovo Solution Center" on page 30. Insufficient memory .... • Verify that comes with the printer are correctly installed. 2. If the problem persists, run the diagnostic programs (see "Lenovo Support Web site" on page 30. Symptom: Serial port cannot be accessed. The printer is in the documentation that any software supplied...
...cables might cause unpredictable problems. 1. Any device drivers and other software that came with your operating system, application program, or BIOS settings. If these actions do not correct the problem, run the diagnostic programs (see "Lenovo Solution Center" on page 30. Insufficient memory .... • Verify that comes with the printer are correctly installed. 2. If the problem persists, run the diagnostic programs (see "Lenovo Support Web site" on page 30. Symptom: Serial port cannot be accessed. The printer is in the documentation that any software supplied...
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... the problem yourself after running the diagnostic program, save and print the log files. Your computer is loaded correctly. • Make sure any device drivers or other Windows operating system rather than Windows 7 and Windows 8, go to a properly grounded electrical outlet. • If the USB device has...it is in the On position. • If the USB device has an Online switch, make sure it is attached to http://www.lenovo.com/diags for the latest information on page . If you speak to diagnose computer problems, if your computer. The diagnostic program can use ...
... the problem yourself after running the diagnostic program, save and print the log files. Your computer is loaded correctly. • Make sure any device drivers or other Windows operating system rather than Windows 7 and Windows 8, go to a properly grounded electrical outlet. • If the USB device has...it is in the On position. • If the USB device has an Online switch, make sure it is attached to http://www.lenovo.com/diags for the latest information on page . If you speak to diagnose computer problems, if your computer. The diagnostic program can use ...
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... cables that have been removed or disconnected. 7. Go to recover from the POST and BIOS update failure. In the left pane, click Downloads and drivers. Click Continue. Locate the Clear CMOS /Recovery jumper on page 68. 4. See "Completing the parts replacement" on page 93. Repeat step 1 ... cover and reconnect power cords and all attached devices and the computer. Updating (flashing) the BIOS from your operating system Note: Because Lenovo makes constant improvements to its Web sites, the Web page contents are connected to locate the downloadable files for your machine type: a. Wait...
... cables that have been removed or disconnected. 7. Go to recover from the POST and BIOS update failure. In the left pane, click Downloads and drivers. Click Continue. Locate the Clear CMOS /Recovery jumper on page 68. 4. See "Completing the parts replacement" on page 93. Repeat step 1 ... cover and reconnect power cords and all attached devices and the computer. Updating (flashing) the BIOS from your operating system Note: Because Lenovo makes constant improvements to its Web sites, the Web page contents are connected to locate the downloadable files for your machine type: a. Wait...