Lenovo 4228, 4223, 4229 Replacing the rear fan assembly, Removing the hard disk drive fan assembly

Page 58

5. Press the tab and then pivot the hard disk drive fan outward to remove it from the chassis.

Figure 29. Removing the hard disk drive fan assembly

6.Position the hard disk drive fan, and then pivot the fan to insert the tab into the chassis.

7.Reconnect the hard disk drive fan cable to the system board.

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.

Replacing the rear fan assembly

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 replace the rear fan assembly.

To replace the rear fan assembly, 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.Locate the rear fan assembly. See “Locating components” on page 9.

4.Disconnect the rear fan assembly cable from the system fan connector on the system board. See “Locating parts on the system board” on page 10.

46ThinkStation 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 Service and upgrades Important safety informationStatic electricity prevention Power cords and power adapters Extension cords and related devicesExternal devices Plugs and outletsHeat and product ventilation Modem safety information Operating environmentCleaning and maintenance Power supply statementLaser compliance statement ThinkStation User Guide Features Product overviewInput/Output I/O features System management featuresConnectivity Preinstalled software programs Power supplySecurity features Preinstalled operating systemSpecifications DimensionsSoftware overview Software provided by LenovoAdobe Reader Antivirus software ThinkVantage Rescue and RecoveryLocations 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 the keyboard Using your computerFrequently asked questions Using Windows shortcut keysAdjusting audio Using the blue ThinkVantage buttonUsing the wheel mouse About your computer audioUsing CDs and DVDs Setting the volume from the desktopSetting the volume from Control Panel Adding the volume icon to the taskbarPlaying a CD or DVD Recording a CD or DVDArranging your workspace Accessibility and comfortYou and your computer ComfortAir 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 Installing a padlock Locking the computer coverInstalling a padlock Bios passwords Using passwordsAttaching an integrated cable lock Using and understanding firewalls Windows passwordsProtecting data against viruses ThinkStation User Guide Installing external options Installing or replacing hardwareInstalling or replacing hardware 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 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 Administrator Password Password considerationsPower-On Password Hard Disk 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 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 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 Keeping your computer current Preventing problemsUsing System Update Getting the latest device drivers for your computerBasics Keyboard Cleaning your computerComputer Optical mouseCleaning a glass-screen surface Good maintenance practicesMoving your computer Troubleshooting and diagnostics Basic troubleshootingTroubleshooting procedure TroubleshootingAudio problems No audio in WindowsSound 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 Playback is very slow or choppy DVD movie will not playNo audio or intermittent audio while playing DVD movie Invalid disc or no disc found messageHard disk drive problems All or some keys on the keyboard do not work Intermittent problemsKeyboard, mouse, or pointing device problems Mouse or pointing device does not workPointer on the screen does not move smoothly with the mouse Monitor problemsWireless keyboard does not work Wrong characters appear on the screenImage appears to be flickering Image is discolored Networking problemsEthernet problems Your computer cannot connect to the networkWake on LAN feature is not working Option problemsAdapter stops working for no apparent reason An option that previously worked does not work now Performance and lockup problemsAn option that was just installed does not work Insufficient free hard disk drive spaceExcessive number of fragmented files Serial port problems Printer problemsInsufficient memory Software problems Software does not work as expectedUSB problems Lenovo Solution CenterThinkStation User Guide Getting information, help, and service Calling for service Help and serviceUsing the documentation and diagnostic programs Lenovo Support Web siteUsing other services Purchasing additional servicesThinkStation User Guide Appendix A. System memory speed 107ThinkStation User Guide Appendix B. Notices 109Trademarks Electronic emissions notices Appendix C. Regulatory informationExport classification notice Federal Communications Commission Declaration of ConformityThinkStation User Guide Additional regulatory information ThinkStation User Guide Recycling information Appendix D. Weee and recycling informationImportant information for the European Directive 2002/96/EC 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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