Lenovo 8143, 8146, 8423, 8427, 8422, 8144, 8097 manual Recovering from a POST/BIOS update failure

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1.From your browser, type http://www.lenovo.com/think/support in the address field and press Enter.

2.Locate the Downloadable files for your machine type as follows:

a.In the Use Quick path field, type in your machine type and click Go.

b.Under Browse by product, click Continue.

c.Under Important information, click Downloads and drivers.

d.In BIOS category, click Flash BIOS update.

e.Click the .txt file that contains the Installation instructions for Flash BIOS update (Flash from the operating system version).

3.Print these instructions. This is very important since they are not on the screen after the download begins.

4.From your browser, click Back to return to the list of files. Carefully follow the printed instructions to download, extract, and install the update.

Recovering from a POST/BIOS update failure

If power to your computer is interrupted while POST/BIOS is being updated (flash update), your computer might not restart correctly. If this happens, perform the following procedure (also known as a Boot-block Recovery):

1.Turn off the computer and any attached devices, such as printers, monitors, and external drives.

2.Unplug all power cords from electrical outlets, and remove the computer cover. See “Removing the cover” on page 10.

3.Locate the Clear CMOS/Recovery jumper on the system board. See “Identifying parts on the system board” on page 11.

4.If necessary, refer to Installing adapters to remove any adapters that impede access to the Clear CMOS/Recovery jumper.

5.Move the jumper from the standard position (pins 1 and 2) to pins 2 and 3.

6.Replace the computer cover. See “Replacing the cover and connecting the cables” on page 24.

7.Reconnect the power cords for the computer and monitor to electrical outlets.

8.Insert the POST/BIOS update (flash) diskette into drive A, and turn on the computer and the monitor.

9.The recovery session will take two to three minutes. During this time you will hear a series of beeps. After the update session is completed, there will be no video and the series of beeps will end, and the system will automatically turn off. Remove the diskette from the diskette drive.

10.Unplug the power cords from electrical outlets.

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

12.Remove any adapters that impede access to the BIOS Configuration jumper.

13.Replace the Clear CMOS/Recovery jumper to its original position.

14.Replace any adapters that were removed.

15.Replace the computer cover and reconnect any cables that were disconnected.

16.Turn on the computer to restart the operating system.

30User 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 ventilationLithium battery notice Additional safety informationTo connect To disconnect 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 Tools required Installing external optionsHandling static-sensitive devices 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 featuresChanging the battery Password protectionPadlock 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 PasswordUsing Security Profile by Device Setting, changing, and deleting a passwordSelecting a startup device Selecting a temporary startup device Exiting from the Setup Utility programChanging the startup sequence 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 an optical mouse Appendix B. Cleaning the mouseCleaning a mouse with a ball 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.
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