Lenovo 10120/90A0 [K450 NON-ES], 10121/90A1 [K450 ES] manual Connecting the power cord

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3.Select 7.1 surround from audio channels in the pop-up Speaker setup dialog box and proceed with the speaker setup by following the prompts.

4.7.1 surround sound can be used once this configuration procedure is complete.

Note: If the audio configuration interfaces above are different from those on your computer, you may use the above steps as a reference to configure the

7.1surround sound audio device system in your actual audio configuration interface and read the electronic Help information for further assistance.

Connecting the power cord

Connect the power cord to an electrical outlet. We recommend using a grounded connection or a surge protector.

User Guide 11

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Contents IdeaCentre K4 Series Important Safety Information Page Contents Hardware Replacement Guide Using the Computer Hardware Front view of the chassis Rear view of the chassis IdeaCentre K450User Guide User Guide User Guide Basic connector instructions Connector Description MicrophoneConnecting your computer Audio configuration instructions Configurations are as followingsSound configuration is as follows Connecting the power cord Display connecting instructions when playing Blu-ray Discs Connecting to the InternetWired keyboard selected models only Hot-swappable hard disk selected models only Components Hot-swappable hard disk USB adapterUser Guide Power Control Switch selected models only User Guide Auto Turbo User Guide Using Windows Charms Bar Switching between the main Windows 8 interfacesShutting down the computer Switching between apps Closing an appOpening other system programs Windows Help and SupportUser Guide Using the Rescue System OneKey Recovery Method 1 Automatic Installation Driver and Application InstallationMethod 2 Manual Installation User Guide Using the Software Service and Warranty Lenovo SupportRegistration User GuideTroubleshooting Confirming Setup Solving Problems Troubleshooting Display ProblemsTroubleshooting Audio Problems Troubleshooting Software Problems Troubleshooting Problems with Optical Drives and Hard DisksSpecial considerations for troubleshooting Windows Bios setup utility Performing Daily Maintenance Tasks User Guide Hardware Replacement Guide Safety information for replacing CRUs OverviewAdditional information resources Tools requiredHandling static-sensitive devices Locations Identifying internal componentsIdentifying parts on the system board Lenovo K450Lenovo K430 Lenovo K410 Lenovo K415 Replacing hardware Pre-disassembly instructionsGeneral information Removing the computer cover To remove the computer coverRemoving the front bezel To remove the front bezelReplacing a memory module To replace a memory moduleK415 Memory Installation Instructions Replacing a hard disk drive To replace a hard disk driveReplacing an optical drive To replace an optical driveReplacing a graphics card To replace a graphics cardUser Guide User Guide Replacing the TV-Tuner card To replace the TV-Tuner cardUser Guide Replacing the keyboard and mouse To replace the keyboardAppendix DeclarationTrademarks Energy Star Statement 4744 4748 4743 10121/90A1Enabling ErP compliance mode

10120/90A0 [K450 NON-ES], 10121/90A1 [K450 ES], 10089/1168/4744 [K410], 10086/3109/4743 [K430], 10090/2556/4748 [K415] specifications

The Lenovo K series laptops, including the 10086/3109/4743 [K430], 10090/2556/4748 [K415], 10121/90A1 [K450 ES], 10120/90A0 [K450 NON-ES], and 10089/1168/4744 [K410], are noteworthy entries in the realm of multimedia laptops. Each model boasts a distinct set of features and technologies that cater to a range of user preferences, from casual browsing to robust multimedia tasks.

The K430 stands out with its sleek design and a high-definition display, offering vibrant visuals ideal for movies and photo editing. It is equipped with Intel's processors, ensuring smooth performance and energy efficiency. The inclusion of Dolby Home Theater technology enhances audio quality, providing immersive sound for entertainment enthusiasts. With ample storage options and an Intel HD graphics card, the K430 is suitable for both work and play.

Next is the K415, which features a slightly larger screen than the K430, making it a great choice for users who prefer a more expansive viewing experience. It combines functionality with aesthetics, offering a stylish look while being durable enough for everyday use. Key features include enhanced connectivity options, including USB 3.0 ports, which allow for fast data transfer and compatibility with a variety of peripherals. The K415 is designed for multitasking, equipped with sufficient RAM and a fast processor.

The K450 ES and K450 NON-ES models offer similar specifications, yet they cater to different market segments. The ES version includes enhanced security features, making it suitable for users concerned about data protection. Both models come equipped with high-performance components, ensuring they can handle demanding applications without compromising speed. They also incorporate Lenovo's proprietary AccuType keyboard, which provides better typing comfort and accuracy.

Finally, the K410 model appeals to users seeking a portable yet powerful machine. It is lightweight, making it ideal for students and professionals on the go. The K410 integrates Lenovo's OneKey Recovery system, facilitating data backup and restoring processes. It also features integrated Wi-Fi and Bluetooth connectivity for seamless online experiences and peripheral connection.

In summary, Lenovo's K series laptops are engineered to meet diverse computing needs. With their blend of performance, aesthetics, and user-friendly features, these models ensure that customers can find a laptop that perfectly fits their demands, whether for work, study, or entertainment.