Samsung HABANA-C NT-R45 Series, Руководство по обслуживанию, Страница: 73 / 156

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5. Troubleshooting
15. The LAN function does not work.
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Check if the LAN cable is properly connected.
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Check if the LAN driver is properly installed.
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If the driver is properly installed, check if the LAN cable jack is out of order.
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Replace the main board
16. The wireless LAN does not work normally.
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Check if the WLAN slide switch at the bottom right is in the ON position.
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Check if the WLAN driver is properly installed.
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Check if the wireless LAN antenna cable is properly connected.
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Replace the main board
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When booting up the computer
17. The "Invalid System Disk. Replace the Disk and then press any key" message appears.
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This message may appear when the connected USB memory or CD media does not include
bootable data.
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The "Reboot and Select the proper Boot device or Insert a bootable media in the selected Boot
device and press a key" message appears.
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Check if the signal and power cables are properly connected to the hard disk drive.
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Check if the hard disk drive is recognized in the BIOS SETUP.
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The operating system on the hard disk drive is corrupted. Reinstall Windows.
18. The "To enter BIOS SETUP, press <F2>. To continue, press <F1>." message appears.
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This may happen when the BIOS settings are different from the system environment. In this
case, setup the BIOS according to your system environment.
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Press <F2> to enter the BIOS SETUP.
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Check if the date and time are correct in the BIOS SETUP.
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Save the settings and restart the system.
19. The 'CMOS Checksum error’ message appears.
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This message may appear when the CMOS battery of the main board is completely discharged.
In this case, replace the battery with a new one of the same type and set up the BIOS SETUP
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