Lenovo 3656, 9705, 9625, 9421, 9353, 9485, 9623, 7061, 7090, 9795 Removing the heat sink and fan assembly

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5.Disconnect the heat sink and fan assembly cable from the microprocessor fan connector on the system board.

6.Pivot the handle 1 to release the heat sink and fan assembly clamp and then disengage the clamp from the plastic retention bracket.

Figure 16. Removing the heat sink and fan assembly

Note: You might have to gently twist the heat sink and fan assembly to free it from the microprocessor.

7.Lift the failing heat sink and fan assembly off the system board.

26User Guide

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Contents ThinkCentre User Guide Page ThinkCentre User Guide Second Edition December Copyright Lenovo 2008 Contents Index Important safety information Vi User Guide Features Product overviewConnectivity Security features Specifications EnvironmentSoftware overview Software provided with your Windows operating systemLenovo ThinkVantage Toolbox Antivirus software Locating connectors on the front of your computer LocationsLocating connectors on the rear of your computer Rear connector locationsConnector Description Locating components Component locationsLocating parts on the system board Locating internal drivesShows the locations of the drive bays User Guide Installing external options Installing or replacing hardwareInstalling or replacing hardware Handling static-sensitive devicesRemoving the computer cover Removing the computer cover Removing and reinstalling the front bezel Installing or replacing a PCI cardOpening the PCI card latch What to do next Installing or replacing a memory module Opening the retaining clipsReplacing the battery Removing the memory moduleInstall a new battery Replacing the power supply assembly Removing the retaining screws for the power supply assemblyReplacing the heat sink and fan assembly Removing the heat sink and fan assembly Replacing the heat sink and fan assembly Replacing the primary hard disk driveRemoving the primary hard disk drive Installing the primary hard disk drive into the bracket Installing the primary hard disk drive and bracket Replacing the secondary hard disk driveRemoving the secondary hard disk drive Installing the secondary hard disk drive into the bracket Installing the secondary hard disk drive and drive cage Replacing the optical driveRemoving the optical drive Replacing the diskette drive or card reader Removing the diskette drive or card reader Replacing the front fan assembly Removing the front fan assemblyReplacing the rear fan assembly Installing the front fan assemblyRemoving the rear fan assembly Replacing the front audio and USB assembly Installing the rear fan assemblyRemoving the front audio and USB assembly Replacing the internal speaker Removing the old internal speakerInstalling a new internal speaker Replacing the keyboardKeyboard connectors Completing the parts replacement Replacing the mouseInstalling security features Reinstalling the computer coverIntegrated cable lock Integrated cable lockErasing lost or forgotten passwords clearing Cmos Password protectionPadlock Installing or replacing hardware User Guide Creating and using recovery media Recovery informationCreating recovery media Using recovery media Performing a backup operation Performing backup and recovery operationsPerforming a recovery operation Using the Rescue and Recovery workspace Creating and using rescue media Creating rescue mediaUsing rescue media Creating and using a recovery repair disketteUsing a recovery repair diskette Creating a recovery repair disketteInstalling or reinstalling device drivers Setting a rescue device in the startup sequence Solving recovery problemsViewing and changing settings Using the Setup UtilityStarting the Setup Utility program Using passwordsAdministrator Password Password considerationsUser Password Setting, changing, and deleting a passwordSelecting a startup device Selecting a temporary startup deviceExiting from the Setup Utility program Selecting or changing the startup device sequenceUpdating flashing the Bios from a diskette or disc Using system programsUpdating system programs Updating flashing the Bios from your operating system Recovering from a POST/BIOS update failureUpdating system programs User Guide Troubleshooting and diagnostics Basic troubleshootingDiagnostic programs Lenovo ThinkVantage ToolboxPC-Doctor for Rescue and Recovery Lenovo System ToolboxPC-Doctor for DOS Cleaning the mouseOptical mouse Non-optical mouse User Guide Online Books folder Getting information, help, and serviceInformation resources Lenovo ThinkVantage ToolsThinkVantage Productivity Center Access HelpSafety and Warranty Lenovo WelcomeUsing the documentation and diagnostic programs Help and serviceCalling for service Using other services Purchasing additional servicesAppendix. Notices Television output notice TrademarksIndex CRUPower Page User Guide Page Part Number 89Y0418
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9421, 9953, 9705, 9935, 9795 specifications

Lenovo has established itself as a significant player in the global technology market, particularly with its innovative line of laptops. The models 9353, 3656, 9625, 7061, and 9946 showcase the company's commitment to combining performance, portability, and cutting-edge technology.

The Lenovo 9353 is known for its sleek design and powerful performance. It features Intel's latest processors and high-speed SSD options, making it an excellent choice for professionals and creatives who require robust computing power. The 9353 is equipped with a vibrant display that enhances the visual experience, perfect for graphic design or content consumption. Its lightweight build ensures portability, making it easy to carry around.

The Lenovo 3656 stands out with its affordability without compromising on essential features. It is powered by AMD processors and offers decent graphics capabilities, ideal for everyday tasks like browsing, streaming, and office applications. The battery life is commendable, supporting all-day use for students and professionals alike. The 3656 also includes a solid build quality, ensuring durability and reliability.

Next, the Lenovo 9625 is a high-end model designed for gaming enthusiasts. With a powerful NVIDIA graphics card, this laptop delivers an immersive gaming experience with high frame rates and stunning visuals. The 9625 also comes with an advanced cooling system to prevent thermal throttling during extended gaming sessions. Its customizable RGB keyboard appeals to gamers who appreciate aesthetics alongside high performance.

The Lenovo 7061 is tailored for business users. It features enhanced security measures, including a fingerprint reader and a TPM chip to safeguard sensitive data. The 7061's display is designed for long hours of work, with anti-glare technology reducing eye strain. It also provides ample connectivity options, making it a versatile choice for professionals on the go.

Lastly, the Lenovo 9946 is a convertible laptop that offers the flexibility of a tablet and the functionality of a laptop. It boasts a touchscreen display and 2-in-1 versatility, making it suitable for various uses, from casual browsing to professional presentations. The Lenovo 9946 is powered by Intel’s latest technologies, ensuring high performance and seamless multitasking, along with a stylus for precision input.

Overall, these Lenovo models cater to different needs and preferences, all while emphasizing performance, portability, and cutting-edge technology, solidifying Lenovo's reputation in the laptop arena.
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