Lenovo 8144, 8146, 8423, 8427, 8422, 8143, 8097 manual Removing the cover

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Removing the cover

Important

Read “Important safety information” on page v and “Handling static-sensitive devices” on page 6 before removing the computer cover.

To remove the computer cover:

1.Shut down your operating system, remove any media (diskettes, CDs, or tapes) from the drives, and turn off all attached devices and the computer.

2.Unplug all power cords from electrical outlets.

3.Disconnect all cables attached to the computer. This includes power cords, input/output (I/O) cables, and any other cables that are connected to the computer.

4.Remove any locking devices such as a padlock that secure the cover.

5.Press the cover-release button on the right side cover, slide the cover to the rear, and lift off.

10User Guide

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Contents User Guide Types 8097, 8143, 8144 Types 8422, 8423 Page User Guide Types 8097, 8143, 8144 Types 8422, 8423 Page Contents Iv User Guide Important safety information Conditions that require immediate actionGeneral safety guidelines ServicePower cords and power adapters Extension cords and related devicesPlugs and outlets BatteriesCD and DVD drive safety Heat and product ventilationTo connect To disconnect Additional safety informationLithium battery notice Modem safety information Laser compliance statementPower supply statement Overview Information resourcesXiv User Guide Installing options FeaturesMemory Operating systems, preinstalled varies by model type Available options Specifications Handling static-sensitive devices Installing external optionsTools required Locating the connectors on the front of your computer Locating the connectors on the rear of your computer Connector Description Obtaining device driversRemoving the cover Locating components Identifying parts on the system boardInstalling a memory module What to do next Installing adapters Installing internal drives Drive specifications Installing a drive in bay 1 or bay Installing a hard disk drive in bay Installing options Connecting drives Connecting the first optical driveConnecting a serial ATA hard disk drive Installing security featuresPadlock Password protectionChanging the battery Erasing a lost or forgotten password clearing Cmos Replacing the cover and connecting the cables Viewing and changing settings Using the Setup Utility programStarting the Setup Utility program Using passwordsIDE Drive User Password User PasswordAdministrator Password IDE Drive Master PasswordSelecting a startup device Setting, changing, and deleting a passwordUsing Security Profile by Device Changing the startup sequence Exiting from the Setup Utility programSelecting a temporary startup device Appendix A. Updating system programs Updating flashing Bios from a diskette or CD-ROMUpdating flashing Bios from your operating system System programsRecovering from a POST/BIOS update failure Cleaning a mouse with a ball Appendix B. Cleaning the mouseCleaning an optical mouse User Guide Appendix C. Manual modem commands Basic AT commandsSet Tone Dial as default Low speaker volumeSet Pulse dial as default Internal speaker on until carrier detectedExtended AT commands MNP/V.42/V.42bis/V.44 commands Fax Class 1 commands Fax Class 2 commandsVoice commands Appendix C. Manual modem commands User Guide Appendix D. Notices Television output notice TrademarksIndex Page Page Part Number 19R0450

8144, 8097, 8143, 8422, 8427 specifications

Lenovo is known for its innovative laptops and computers, and the models 8146, 8423, 8427, 8422, and 8143 are excellent representations of the brand's commitment to quality engineering and technology. These models cater to a range of different users, from casual consumers to professionals who demand performance and reliability.

The Lenovo 8146, often part of the ThinkPad series, boasts robust build quality with military-grade durability. It features a powerful Intel processor, which ensures seamless multitasking and efficient performance for various applications. The 8146 is equipped with a high-resolution display, providing vibrant colors and crisp details, making it a great option for both professional and media-related tasks.

Moving on to the Lenovo 8423, this model emphasizes portability and design without sacrificing performance. It typically includes a lightweight chassis, making it easy to carry while on the go. The 8423 is often paired with impressive battery life, enabling users to stay productive throughout the day without needing constant recharges. Its connectivity options include a range of USB ports, HDMI, and possibly even Thunderbolt support, catering to the needs of various peripherals.

The 8427 model is tailored for multimedia enthusiasts and professionals who require superior graphic performance. Equipped with dedicated graphics cards, it excels in tasks such as video editing, graphic design, and gaming. The display is often enhanced with high dynamic range (HDR) support, providing a visually immersive experience. With multiple storage options available, including solid-state drives (SSD), the 8427 ensures quick load times and ample space for large files.

The Lenovo 8422 focuses on business users, featuring advanced security options, such as fingerprint readers and TPM (Trusted Platform Module) for enhanced data protection. Its design includes a comfortable keyboard for prolonged typing sessions, making it ideal for professionals who spend hours working on reports or presentations.

Finally, the Lenovo 8143 model rounds out the series with a focus on affordability without compromising on essential features. It offers a solid mix of performance and value, making it an attractive option for students or casual users. The 8143 typically includes decent specifications that allow for everyday tasks such as browsing, word processing, and multimedia consumption.

In summary, models 8146, 8423, 8427, 8422, and 8143 from Lenovo represent a diverse range of options that accommodate various user needs, from high-performance gaming to efficient business use. Each model highlights key technologies and characteristics that align with Lenovo's reputation for quality and innovation. Whether for work or play, these laptops are equipped to handle a spectrum of tasks while providing a reliable computing experience.