Lenovo 8423, 8146, 8427, 8422, 8143, 8144, 8097 manual What to do next

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To determine the type of memory required:

1.Remove the computer cover. See “Removing the cover” on page 10.

2.Locate the memory module connectors. See “Identifying parts on the system board” on page 11.

vIf the two memory module connectors closest to the edge of the board are a yellow color, your system board has DDR type memory. DDR memory modules are 184-pin, 2.5 V and can be used in any combination of 128 MB, 256 MB, 512 MB, and 1 GB sizes.

vIf the two memory module connectors closest to the edge of the board are a green color, your system board has DDR2 type memory. DDR2 memory modules are 240-pin, 1.8 V and can be used in any combination of 256 MB, 512 MB, and 1 GB sizes.

Notes:

a.The type of memory required is also indicated in text near the logo on the system board.

b.System memory as reported in the “System Summary” section of the Setup Utility or by the operating system might be less than the amount of physical memory installed. This discrepancy is due to memory addressing limitations of the Intel 915G Family chipset and is usually not visable until more than 3GB of memory is installed.

To install a memory module:

1.Remove the computer cover. See “Removing the cover” on page 10.

2.Locate the memory module connectors. See “Identifying parts on the system board” on page 11.

3.Pivot or open the retaining clips for the connector where you are installing the memory module.

4.Ensure that the notch on the new memory module 1aligns correctly with the connector key 2 on the system board. Push the memory module straight down into the connector until the retaining clips close.

What to do next:

vTo work with another option, go to the appropriate section.

vTo complete the installation, go to “Replacing the cover and connecting the cables” on page 24.

Chapter 1. Installing options 13

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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 Conditions that require immediate action Important safety informationService General safety guidelinesExtension cords and related devices Power cords and power adaptersBatteries Plugs and outletsHeat and product ventilation CD and DVD drive safetyTo connect To disconnect Additional safety informationLithium battery notice Laser compliance statement Modem safety informationPower supply statement Information resources OverviewXiv User Guide Features Installing optionsMemory 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 Obtaining device drivers Connector DescriptionRemoving the cover Identifying parts on the system board Locating componentsInstalling 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 the first optical drive Connecting drivesInstalling security features Connecting a serial ATA hard disk drivePadlock Password protectionChanging the battery Erasing a lost or forgotten password clearing Cmos Replacing the cover and connecting the cables Starting the Setup Utility program Using the Setup Utility programViewing and changing settings Using passwordsAdministrator Password User PasswordIDE Drive User 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 Updating flashing Bios from your operating system Updating flashing Bios from a diskette or CD-ROMAppendix A. Updating system programs System programsRecovering from a POST/BIOS update failure Cleaning a mouse with a ball Appendix B. Cleaning the mouseCleaning an optical mouse User Guide Basic AT commands Appendix C. Manual modem commandsSet Pulse dial as default Low speaker volumeSet Tone Dial as default Internal speaker on until carrier detectedExtended AT commands MNP/V.42/V.42bis/V.44 commands Fax Class 2 commands Fax Class 1 commandsVoice commands Appendix C. Manual modem commands User Guide Appendix D. Notices Trademarks Television output noticeIndex 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.
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