Lenovo 4228, 4223, 4229 manual Removing and reinstalling the front bezel, What to do next

Page 43

Removing and reinstalling the front bezel

Attention: Do not open your computer or attempt any repair before reading and understanding the “Important safety information” on page v.

This section provides instructions on how to remove and reinstall the front bezel.

To remove and reinstall the front bezel, do the following:

1.Turn off the computer and disconnect all power cords from electrical outlets.

2.Remove the computer cover. See “Removing the computer cover” on page 30.

3.Remove the front bezel by releasing the two plastic tabs on the left side and pivoting the front bezel outward.

Figure 11. Removing the front bezel

4.To reinstall the front bezel, align the three plastic tabs on the right side of the front bezel with the corresponding holes in the chassis, and then pivot the front bezel inwards until the two plastic tabs snaps into position on the left side.

What to do next:

•To work with another piece of hardware, go to the appropriate section.

•To complete the installation or replacement, go to “Completing the parts replacement” on page 56.

Chapter 5. Installing or replacing hardware 31

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Contents ThinkStation User Guide First Edition April Copyright Lenovo Contents Using the Setup Utility Program Appendix A. System memory Speed 107 Appendix B. Notices 109 Iv ThinkStation User Guide Service and upgrades Important safety informationStatic electricity prevention Extension cords and related devices Power cords and power adaptersExternal devices Plugs and outletsHeat and product ventilation Operating environment Modem safety informationCleaning and maintenance Power supply statementLaser compliance statement ThinkStation User Guide Product overview FeaturesInput/Output I/O features System management featuresConnectivity Preinstalled operating system Power supplySecurity features Preinstalled software programsDimensions SpecificationsSoftware provided by Lenovo Software overviewAdobe Reader Antivirus software ThinkVantage Rescue and RecoveryLocations Front connector, control, and indicator locations Connector Description Locating connectors on the rear of your computerLocating components ConnectorSystem board part locations Locating parts on the system boardProduct overview Drive bay locations Locating internal drivesMachine type and model label Machine type and model labelThinkStation User Guide Using Windows shortcut keys Using your computerFrequently asked questions Using the keyboardAbout your computer audio Using the blue ThinkVantage buttonUsing the wheel mouse Adjusting audioAdding the volume icon to the taskbar Setting the volume from the desktopSetting the volume from Control Panel Using CDs and DVDsRecording a CD or DVD Playing a CD or DVDComfort Accessibility and comfortYou and your computer Arranging your workspaceAir circulation Glare and lightingElectrical outlets and cable lengths Register your computer with Lenovo Replacement power cordsMoving your computer to another country or region ThinkStation User Guide Security Security featuresLocking the computer cover Locking the computer cover Installing a padlockInstalling a padlock Bios passwords Using passwordsAttaching an integrated cable lock Using and understanding firewalls Windows passwordsProtecting data against viruses ThinkStation User Guide Handling static-sensitive devices Installing or replacing hardwareInstalling or replacing hardware Installing external optionsRemoving the computer cover Removing the computer coverWhat to do next Removing and reinstalling the front bezelOpening the PCI card retainer Installing or replacing a PCI cardRemoving a PCI card Installing or replacing a memory module Removing the memory fan duct Removing a memory module Installing a memory module Installing or replacing the optical driveRemoving the optical drive Installing the optical drive retainer Replacing the card reader Connecting the optical driveRemoving the card reader Installing the card reader Replacing the batteryRemoving the old battery Replacing the heat sink and fan assemblyRemoving the heat sink and fan assembly Replacing the hard disk drive fan assembly Removing the hard disk drive fan assembly Replacing the rear fan assemblyRemoving the rear fan assembly Installing the rear fan assembly Installing or replacing a hard disk driveRemoving the hard disk drive Installing the hard disk drive into the bracket Installing the hard disk drive Removing the hard disk drive enablement module Installing or replacing a hard disk drive enablement moduleInstalling a new hard disk drive enablement module Replacing the front audio and USB assemblyReplacing the internal speaker Removing the internal speaker Replacing the keyboard or mouseConnecting the USB keyboard or mouse Completing the parts replacementObtaining device drivers ThinkStation User Guide Creating and using recovery media Recovery informationCreating recovery media Performing backup and recovery operations Using recovery mediaPerforming a backup operation Using the Rescue and Recovery workspace Performing a recovery operationClick the Restore your system from a backup icon Using a rescue medium Creating and using a rescue mediumCreating a rescue medium Reinstalling preinstalled applications Reinstalling preinstalled applications and device driversReinstalling preinstalled device drivers Reinstalling device drivers Reinstalling software programsSolving recovery problems Recovery information ThinkStation User Guide Starting the Setup Utility program Using the Setup Utility programViewing and changing settings Hard Disk Password Password considerationsPower-On Password Administrator PasswordEnabling or disabling a device Erasing lost or forgotten passwords clearing CmosSelecting a startup device Selecting a temporary startup device Enabling ErP compliance mode and Deep SxSelecting or changing the startup device sequence Exiting the Setup Utility program ThinkStation User Guide Configuring RAID with Intel RSTe Configuring RAIDInstalling Sata or SAS hard disk drives Entering the Intel RSTe configuration utility RAID Level Resetting hard disk drives to non-RAIDInstalling Sata or SAS hard disk drives Entering the LSI MegaRAID Bios configuration utility Setting the hot spare hard disk drive Updating flashing the Bios from a disc Using system programsUpdating system programs Recovering from a POST/BIOS update failure Updating flashing the Bios from your operating systemClick Downloads and drivers Getting the latest device drivers for your computer Preventing problemsUsing System Update Keeping your computer currentBasics Optical mouse Cleaning your computerComputer KeyboardCleaning a glass-screen surface Good maintenance practicesMoving your computer Basic troubleshooting Troubleshooting and diagnosticsTroubleshooting Troubleshooting procedureNo audio in Windows Audio problemsSound comes from one external speaker only CD problemsNo audio in DOS applications or games CD or DVD does not work DVD problemsBlack screen instead of DVD video Invalid disc or no disc found message DVD movie will not playNo audio or intermittent audio while playing DVD movie Playback is very slow or choppyHard disk drive problems Mouse or pointing device does not work Intermittent problemsKeyboard, mouse, or pointing device problems All or some keys on the keyboard do not workWrong characters appear on the screen Monitor problemsWireless keyboard does not work Pointer on the screen does not move smoothly with the mouseImage appears to be flickering Your computer cannot connect to the network Networking problemsEthernet problems Image is discoloredWake on LAN feature is not working Option problemsAdapter stops working for no apparent reason Insufficient free hard disk drive space Performance and lockup problemsAn option that was just installed does not work An option that previously worked does not work nowExcessive number of fragmented files Serial port problems Printer problemsInsufficient memory Software does not work as expected Software problemsLenovo Solution Center USB problemsThinkStation User Guide Getting information, help, and service Lenovo Support Web site Help and serviceUsing the documentation and diagnostic programs Calling for servicePurchasing additional services Using other servicesThinkStation User Guide 107 Appendix A. System memory speedThinkStation User Guide 109 Appendix B. NoticesTrademarks Federal Communications Commission Declaration of Conformity Appendix C. Regulatory informationExport classification notice Electronic emissions noticesThinkStation User Guide Additional regulatory information ThinkStation User Guide 115 Appendix D. Weee and recycling informationImportant information for the European Directive 2002/96/EC Recycling informationRecycling information for Brazil Battery recycling information for TaiwanBattery recycling information for the European Union ThinkStation User Guide 119 IndexInstalling options memory module PCI card 121 ThinkStation User Guide
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4229, 4223, 4228 specifications

Lenovo has long been recognized for its commitment to producing high-quality computing solutions, and the ThinkPad line is no exception. Among its various models, the Lenovo ThinkPad series 4228, 4223, and 4229 stand out for their robust features and reliable performance, making them ideal choices for business and professional use.

The Lenovo ThinkPad 4228 series is engineered with a focus on durability and performance. One of its key features is the powerful Intel Core processor range, which ensures that users can manage demanding applications and multitask efficiently. Alongside this, the device typically comes equipped with ample RAM, providing speed and responsiveness that enhances productivity.

Moving to the ThinkPad 4223, it streamlines user experience with advanced connectivity options. The inclusion of multiple USB ports, HDMI, and Ethernet capabilities allows for seamless integration with various devices and networks. The 4223 model often houses a backlit keyboard, enabling users to work effortlessly in low-light environments. This model puts a strong emphasis on portability, making it a reliable companion for professionals on the move.

The ThinkPad 4229 takes connectivity a step further by offering options like Wi-Fi 6 and Bluetooth, ensuring fast and stable connections whether in the office or on the go. This model is often equipped with a higher resolution display, contributing to a better viewing experience for video conferencing and presentations. Its extended battery life is a notable feature, allowing users to remain productive without the constant need for recharging.

All three models in the 422x series boast Lenovo’s robust security features, including fingerprint readers and TPM (Trusted Platform Module), which safeguard sensitive data against unauthorized access. Furthermore, the reputation of Lenovo ThinkPads for their exceptional keyboard layout ensures that users can type comfortably over extended periods, reducing strain and increasing efficiency.

In summary, the Lenovo ThinkPad 4228, 4223, and 4229 models represent a blend of power, durability, and user-friendly design. With their focus on connectivity, performance, and security, these laptops cater perfectly to the needs of professionals and businesses, confirming Lenovo's status as a leading manufacturer in the world of computing technology. Whether you need a rugged workhorse for heavy tasks or a portable device for meetings, the ThinkPad series provides versatile solutions to meet any requirement.
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