Lenovo 4218, 4155, 4158 manual Updating flashing Bios from your operating system

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Note: If you want to change the machine type/model, press Y when prompted. Type in the machine type/model and then press Enter.

6.Follow the instructions on the screen to complete the update.

Updating (flashing) BIOS from your operating system

Note: Because Lenovo makes constant improvements to the Web site, the Web page contents are subject to change without notice, including the contents referenced in the following procedure.

To update (flash) BIOS from your operating system:

1.Go to http://www.lenovo.com/support.

2.Do the following to locate the downloadable files for your machine type:

a.In the Enter a product number field, type your machine type and click Go.

b.Click Downloads and drivers.

c.Select BIOS in the Refine results field to easily locate all the BIOS related links.

d.Click the BIOS update link.

e.Click the TXT file that contains the instructions for updating (flashing) BIOS from your operating system.

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

4.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 commonly called 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. Refer to “Removing the cover” in the ThinkStation Hardware Installation and Replacement Guide.

3.Access the system board. Refer to “Accessing system board components” in the ThinkStation Hardware Installation and Replacement Guide.

4.Locate the Clear CMOS/Recovery jumper on the system board. Refer to “Identifying parts on the system board” in the ThinkStation Hardware Installation and Replacement Guide.

5.Remove any cables that impede access to the Clear CMOS/Recovery jumper.

6.Move the jumper from the standard position (pin 1 and pin 2) to pin 2 and pin 3.

7.Reconnect any cables that were disconnected. Refer to “Completing the parts replacement” in the ThinkStation Hardware Installation and Replacement Guide.

8.Close the computer cover and reconnect the power cords for the computer and monitor to electrical outlets.

9.Turn on the computer and the monitor. Insert the POST/BIOS update (flash) disc into the optical drive.

10.Turn the computer off and back on again.

30User Guide

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Contents ThinkStation User Guide Page ThinkStation User Guide Second Edition October Copyright Lenovo Contents Appendix B. System memory speed Appendix C. Notices Introduction Vi User Guide Important safety information User Guide Glare and lighting Arranging your workspaceComfort Air circulation Electrical outlets and cable lengthsSetting up your computer Connecting your computerUser Guide Setting up your computer User Guide Setting up your computer If you have powered speakers with an ac power adapter 1394 Completing important tasks Turning on computer powerFinishing the software installation Updating your operating system Installing other operating systemsInstalling external options Updating your antivirus softwareInstalling the computer on a rack shelf FeaturesConnectivity Security features Specifications DimensionsUser Guide Software provided by Lenovo Software overviewSoftware provided with your Windows operating system Lenovo System Toolbox PC-Doctor for Rescue and RecoveryLenovo ThinkVantage Toolbox Adobe ReaderViewing and changing settings Using the Setup UtilityStarting the Setup Utility program Using passwordsAdministrator Password Password considerationsUser Password Setting, changing, and deleting a passwordSelecting a temporary startup device Enabling or disabling a deviceSelecting a startup device Selecting or changing the startup device sequence Advanced settingsExiting from the Setup Utility program Installing hard disk drives and configuring RAID Installing Sata or SAS hard disk drivesFrom the RAID Config menu, select Create array Configuring the Marvell Bios Setup to delete an array From the RAID Config menu, select Delete arrayUser Guide Updating system programs Using system programsUpdating flashing Bios from a disc Updating flashing Bios from your operating system Recovering from a POST/BIOS update failureUpdating system programs User Guide Troubleshooting and diagnostics Basic troubleshootingDiagnostic programs Troubleshooting and diagnostics Creating a diagnostic disc PC-Doctor for DOSNon-optical mouse Cleaning the mouseOptical mouse 2 Ball 3 Plastic rollers 4 Ball cage Creating recovery media Recovery informationCreating and using recovery media Using recovery media Performing backup and recovery operationsPerforming a backup operation Performing a recovery operationUsing the Rescue and Recovery workspace Creating and using rescue media Creating rescue mediaCreating a recovery repair diskette Using rescue mediaCreating and using a recovery repair diskette Using a recovery repair diskette Installing or reinstalling device driversSetting a rescue device in the startup sequence Solving recovery problemsOnline Books folder Getting information, help, and serviceInformation resources Lenovo ThinkVantage ToolsUsing the documentation and diagnostic programs Safety and WarrantyHelp and service Calling for serviceUsing other services Purchasing additional services Appendix A. Manual modem commands Basic AT commandsLow speaker volume Extended AT commands Enable RTS/CTS hardware flow controlMNP/V.42/V.42bis/V.44 commands +MS=?Fax Class 1 commands Fax Class 2 commandsVoice commands Appendix A. Manual modem commands User Guide Appendix B. System memory speed User Guide Appendix C. Notices Television output notice European conformance CE mark TrademarksIndex Page Page User Guide Page Part Number 53Y4327

4218, 4155, 4158 specifications

Lenovo has long been recognized for its innovative approach to laptop and desktop manufacturing, delivering a combination of performance, reliability, and value. The Lenovo 4158, 4155, and 4218 models are a testament to this commitment. Targeting a variety of users, these devices cater to both business and personal needs, ensuring that users have the tools they require for productivity and entertainment.

The Lenovo 4158 series is particularly noteworthy for its lightweight design combined with robust performance. This model is equipped with the latest Intel processors, which provide quick responsiveness and efficient multitasking capabilities. Users can choose between various storage options, including solid-state drives (SSDs) for faster data access and traditional hard disk drives (HDDs) for larger storage capacities. The display is another highlight of the 4158, featuring an anti-glare screen that enhances usability in bright environments.

Similarly, the Lenovo 4155 boasts impressive specifications aimed at budget-conscious consumers without compromising performance. This series is powered by AMD processors that deliver good processing power for everyday tasks. The graphics performance is also commendable, allowing for smooth video playback and casual gaming. Lenovo has incorporated a combination of USB ports and HDMI connections in the design, making it versatile for various peripheral devices.

The Lenovo 4218 model stands out with its advanced security features. It includes a fingerprint reader and TPM (Trusted Platform Module) chip, ensuring that user data remains secure. This model is built for professionals who prioritize data protection alongside performance. The 4218 is equipped with a full HD display, providing vibrant colors and clarity for presentations and media consumption. Additionally, its battery life extends beyond typical usage, enabling uninterrupted productivity throughout the day.

Each of these Lenovo models supports a wide range of connectivity options, including Wi-Fi 6 for faster internet speeds and a Bluetooth option that enhances connectivity with various devices. The ergonomic keyboards across all models are designed for comfort, reducing fatigue during extended use.

In summary, the Lenovo 4158, 4155, and 4218 series exemplify Lenovo's dedication to delivering high-quality technology catering to diverse user needs. With their compelling features and robust build quality, these models are well-suited for students, professionals, and casual users alike. Whether it's for creative tasks, business utilization, or general computing, users can rely on Lenovo to provide the tools necessary for success.
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