Lenovo 4229, 4223, 4228 manual Power cords and power adapters, Extension cords and related devices

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or CRU, do not open the static-protective package containing the part until the instructions direct you to install it.

When you handle options or CRUs, or perform any work inside the computer, take the following precautions to avoid static-electricity damage:

•Limit your movement. Movement can cause static electricity to build up around you.

•Always handle components carefully. Handle adapters, memory modules, and other circuit boards by the edges. Never touch exposed circuitry.

•Prevent others from touching components.

•When you install a static-sensitive option or CRU, touch the static-protective package containing the part to a metal expansion-slot cover or other unpainted metal surface on the computer for at least two seconds. This reduces static electricity in the package and your body.

•When possible, remove the static-sensitive part from the static-protective packaging and install the part without setting it down. When this is not possible, place the static-protective packaging on a smooth, level surface and place the part on it.

•Do not place the part on the computer cover or other metal surface.

Power cords and power adapters

Use only the power cords and power adapters supplied by the product manufacturer.

The power cords shall be safety approved. For Germany, it shall be H05VV-F, 3G, 0.75 mm2, or better. For other countries, the suitable types shall be used accordingly.

Never wrap a power cord around a power adapter or other object. Doing so can stress the cord in ways that can cause the cord to fray, crack, or crimp. This can present a safety hazard.

Always route power cords so that they will not be walked on, tripped over, or pinched by objects.

Protect power cord and power adapters from liquids. For instance, do not leave your power cord or power adapter near sinks, tubs, toilets, or on floors that are cleaned with liquid cleansers. Liquids can cause a short circuit, particularly if the power cord or power adapter has been stressed by misuse. Liquids also can cause gradual corrosion of power cord terminals and/or the connector terminals on a power adapter, which can eventually result in overheating.

Always connect power cords and signal cables in the correct order and ensure that all power cord connectors are securely and completely plugged into receptacles.

Do not use any power adapter that shows corrosion at the ac input pins or shows signs of overheating (such as deformed plastic) at the ac input or anywhere on the power adapter.

Do not use any power cords where the electrical contacts on either end show signs of corrosion or overheating or where the power cord appears to have been damaged in any way.

Extension cords and related devices

Ensure that extension cords, surge protectors, uninterruptible power supplies, and power strips that you use are rated to handle the electrical requirements of the product. Never overload these devices. If power strips are used, the load should not exceed the power strip input rating. Consult an electrician for more information if you have questions about power loads, power requirements, and input ratings.

viThinkStation User Guide

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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 Static electricity prevention Important safety informationService and upgrades Power cords and power adapters Extension cords and related devicesHeat and product ventilation Plugs and outletsExternal devices Modem safety information Operating environmentLaser compliance statement Power supply statementCleaning and maintenance ThinkStation User Guide Features Product overviewConnectivity System management featuresInput/Output I/O features Power supply Security featuresPreinstalled software programs Preinstalled operating systemSpecifications DimensionsSoftware overview Software provided by LenovoLocations ThinkVantage Rescue and RecoveryAdobe Reader Antivirus software Front connector, control, and indicator locations Locating connectors on the rear of your computer Connector DescriptionConnector Locating componentsLocating parts on the system board System board part locationsProduct overview Locating internal drives Drive bay locationsMachine type and model label Machine type and model labelThinkStation User Guide Using your computer Frequently asked questionsUsing the keyboard Using Windows shortcut keysUsing the blue ThinkVantage button Using the wheel mouseAdjusting audio About your computer audioSetting the volume from the desktop Setting the volume from Control PanelUsing CDs and DVDs Adding the volume icon to the taskbarPlaying a CD or DVD Recording a CD or DVDAccessibility and comfort You and your computerArranging your workspace ComfortElectrical outlets and cable lengths Glare and lightingAir circulation Moving your computer to another country or region Replacement power cordsRegister your computer with Lenovo ThinkStation User Guide Locking the computer cover Security featuresSecurity Installing a padlock Locking the computer coverInstalling a padlock Attaching an integrated cable lock Using passwordsBios passwords Protecting data against viruses Windows passwordsUsing and understanding firewalls ThinkStation User Guide Installing or replacing hardware Installing or replacing hardwareInstalling external options Handling static-sensitive devicesRemoving the computer cover Removing the computer coverRemoving and reinstalling the front bezel What to do nextInstalling or replacing a PCI card Opening the PCI card retainerRemoving a PCI card Installing or replacing a memory module Removing the memory fan duct Removing a memory module Installing or replacing the optical drive Installing a memory moduleRemoving the optical drive Installing the optical drive retainer Connecting the optical drive Replacing the card readerRemoving the card reader Replacing the battery Installing the card readerReplacing the heat sink and fan assembly Removing the old batteryRemoving the heat sink and fan assembly Replacing the hard disk drive fan assembly Replacing the rear fan assembly Removing the hard disk drive fan assemblyRemoving the rear fan assembly Installing or replacing a hard disk drive Installing the rear fan assemblyRemoving the hard disk drive Installing the hard disk drive into the bracket Installing the hard disk drive Installing or replacing a hard disk drive enablement module Removing the hard disk drive enablement moduleReplacing the front audio and USB assembly Installing a new hard disk drive enablement moduleReplacing the internal speaker Replacing the keyboard or mouse Removing the internal speakerCompleting the parts replacement Connecting the USB keyboard or mouseObtaining device drivers ThinkStation User Guide Creating recovery media Recovery informationCreating and using recovery media Performing a backup operation Using recovery mediaPerforming backup and recovery operations Click the Restore your system from a backup icon Performing a recovery operationUsing the Rescue and Recovery workspace Creating a rescue medium Creating and using a rescue mediumUsing a rescue medium Reinstalling preinstalled device drivers Reinstalling preinstalled applications and device driversReinstalling preinstalled applications Solving recovery problems Reinstalling software programsReinstalling device drivers Recovery information ThinkStation User Guide Viewing and changing settings Using the Setup Utility programStarting the Setup Utility program Password considerations Power-On PasswordAdministrator Password Hard Disk PasswordSelecting a startup device Erasing lost or forgotten passwords clearing CmosEnabling or disabling a device Selecting or changing the startup device sequence Enabling ErP compliance mode and Deep SxSelecting a temporary startup device Exiting the Setup Utility program ThinkStation User Guide Installing Sata or SAS hard disk drives Configuring RAIDConfiguring RAID with Intel RSTe Entering the Intel RSTe configuration utility Resetting hard disk drives to non-RAID RAID LevelInstalling Sata or SAS hard disk drives Entering the LSI MegaRAID Bios configuration utility Setting the hot spare hard disk drive Updating system programs Using system programsUpdating flashing the Bios from a disc Click Downloads and drivers Updating flashing the Bios from your operating systemRecovering from a POST/BIOS update failure Preventing problems Using System UpdateKeeping your computer current Getting the latest device drivers for your computerBasics Cleaning your computer ComputerKeyboard Optical mouseMoving your computer Good maintenance practicesCleaning a glass-screen surface Troubleshooting and diagnostics Basic troubleshootingTroubleshooting procedure TroubleshootingAudio problems No audio in WindowsNo audio in DOS applications or games CD problemsSound comes from one external speaker only Black screen instead of DVD video DVD problemsCD or DVD does not work DVD movie will not play No audio or intermittent audio while playing DVD moviePlayback is very slow or choppy Invalid disc or no disc found messageHard disk drive problems Intermittent problems Keyboard, mouse, or pointing device problemsAll or some keys on the keyboard do not work Mouse or pointing device does not workMonitor problems Wireless keyboard does not workPointer on the screen does not move smoothly with the mouse Wrong characters appear on the screenImage appears to be flickering Networking problems Ethernet problemsImage is discolored Your computer cannot connect to the networkAdapter stops working for no apparent reason Option problemsWake on LAN feature is not working Performance and lockup problems An option that was just installed does not workAn option that previously worked does not work now Insufficient free hard disk drive spaceExcessive number of fragmented files Insufficient memory Printer problemsSerial port problems Software problems Software does not work as expectedUSB problems Lenovo Solution CenterThinkStation User Guide Getting information, help, and service Help and service Using the documentation and diagnostic programsCalling for service Lenovo Support Web siteUsing other services Purchasing additional servicesThinkStation User Guide Appendix A. System memory speed 107ThinkStation User Guide Appendix B. Notices 109Trademarks Appendix C. Regulatory information Export classification noticeElectronic emissions notices Federal Communications Commission Declaration of ConformityThinkStation User Guide Additional regulatory information ThinkStation User Guide Appendix D. Weee and recycling information Important information for the European Directive 2002/96/ECRecycling information 115Battery recycling information for Taiwan Recycling information for BrazilBattery recycling information for the European Union ThinkStation User Guide Index 119Installing 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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