Lenovo 7255, 3063, 3285, 6138, 7347, 7639, 8854, 9728, 8494 Replacing the heat sink and fan assembly

Page 36

6.Install the new power supply assembly into the chassis so that the screw holes in the power supply assembly align with those in the chassis.

7.Install the four screws to secure the power supply assembly. Note: Use only screws provided by Lenovo.

8.Reconnect the power supply assembly connectors to the system board.

9.Reconnect a power supply assembly connector to each of the drives.

10.Go to “Completing the parts replacement” on page 45.

Replacing the heat sink and fan assembly

Attention

Do not open your computer or attempt any repair before reading and understanding the “Important safety information” in the ThinkCentre Safety and Warranty Guide that came with your computer. To obtain a copy of the ThinkCentre Safety and Warranty Guide, go to: http://www.lenovo.com/support

This section provides instructions on how to replace the heat sink and fan assembly.

CAUTION:

The heat sink and fan assembly might be very hot. Turn off the computer and wait three to five minutes to let the computer cool before removing the computer cover.

To replace the heat sink and fan assembly:

1.Remove the computer cover. See “Removing the computer cover” on page 14.

2.Lay the computer on its side for easier access to the system board.

3.Locate the heat sink and fan assembly. See “Locating parts on the system board” on page 11.

4.Disconnect the heat sink and fan assembly cable from the microprocessor fan connector on the system board. See “Locating parts on the system board” on page 11.

28User Guide

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Contents Page Page ThinkCentre User Guide Page Contents Iv User Guide Important safety information Vi User Guide Features Product overviewConnectivity Power Specifications EnvironmentSoftware overview Software provided with your Windows operating systemPC-Doctor for Windows PE Locations Locating connectors on the front of your computer Front connector locationsLocating connectors on the rear of your computer Rear connector locationsConnector Description Locating components Component locationsLocating parts on the system board Shows the location of the parts on the system boardUser Guide Installing options and replacing hardware Installing options and replacing hardwareHandling static-sensitive devices Installing external options Removing the computer coverRemoving and installing the front bezel Removing the computer coverInstalling internal options Installing or replacing an adapter cardOpening the adapter card latch What to do next Installing or replacing a memory module Installing internal drives Installing options and replacing hardware Shows the location of the drive bays Installing a drive in bay 1 or bay Installing the retainer Connecting a Sata drive Replacing the battery Removing the old batteryReplacing 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 primary hard disk drive Removing the primary hard disk driveInstalling the primary hard disk drive into the bracket Replacing the secondary hard disk drive Removing 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 Removing the diskette driveRetainer for diskette drive Replacing the front fan assembly Removing the front fan assemblyReplacing the rear fan assembly Installing the front fan assemblyRemoving the rear fan assembly Installing the rear fan assembly Replacing the internal speakerRemoving the old internal speaker Keyboard connectors Replacing the keyboardCompleting the parts replacement Replacing the mouseInstalling security features Reinstalling the computer coverIntegrated cable lock Integrated cable lockPassword protection Erasing lost or forgotten passwords clearing CmosPadlock Installing options and replacing hardware User Guide Recovery information Creating and using Product Recovery discsPerforming backup and recovery operations Using the Rescue and Recovery workspace Creating and using rescue media Creating and using a Recovery Repair diskette To use rescue media, do one of the followingRecovering or installing device drivers Setting a rescue device in the startup sequence Solving recovery problemsUser Guide Using the Setup Utility Starting the Setup Utility programViewing and changing settings Using passwordsPassword considerations Power-On PasswordPrivileged Access Password Hard Disk User PasswordEnabling or disabling a device Selecting a startup deviceSelecting a temporary startup device Advanced settings Exiting from the Setup Utility programSelecting or changing the startup device sequence Using system programs Updating flashing Bios from a discUpdating system programs Updating flashing Bios from your operating system Recovering from a POST/BIOS update failureUpdating system programs User Guide Troubleshooting and diagnostics Basic troubleshootingSymptom Action Diagnostic programs Lenovo System ToolboxPC-Doctor for Windows PE Cleaning the mouse PC-Doctor for DOSOptical mouse Non-optical mouse User Guide Getting information, help, and service Information resourcesOnline Books folder ThinkVantage Productivity CenterAccess Help Safety and WarrantyLenovo Welcome Help and service Using the documentation and diagnostic programsCalling for service Using other services Purchasing additional servicesAppendix. Notices Television output notice TrademarksIndex CRUPage Settings User Guide Page Part Number 53Y9906

7188, 6209, 7635, 7258, 7373 specifications

Lenovo has established itself as a key player in the technology sector, known for its innovative solutions and robust product lineup. Among its myriad offerings, the Lenovo 9728, 7628, 7484, 6302, and 7144 stand out due to their remarkable features, advanced technologies, and distinct characteristics that cater to both professional and personal needs.

Starting with the Lenovo 9728, this model is distinguished by its high-performance capabilities, equipped with a powerful processor that ensures seamless multitasking and efficient performance. It comes with a vivid display that enhances visual clarity, making it ideal for graphic-intensive tasks like video editing and gaming. The long-lasting battery life guarantees that users can rely on it for extended periods without worrying about frequent recharging.

Next is the Lenovo 7628, designed with portability in mind. This laptop is lightweight and ultra-slim, making it convenient for users on the go. It features robust connectivity options, including USB-C and HDMI ports, allowing users to connect to various peripherals effortlessly. The Lenovo 7628 also emphasizes security, incorporating features such as a fingerprint reader to ensure that sensitive data remains protected.

Turning to the Lenovo 7484, this model caters to business professionals. It is equipped with advanced collaboration tools, facilitating seamless communication among teams, regardless of location. With a high-definition camera and superior audio technology, video conferencing becomes more effective. The Lenovo 7484 also offers a rugged design, ensuring that it can withstand the rigors of daily travel.

The Lenovo 6302 is another noteworthy model, featuring an impressive display that presents vibrant colors and sharp images, perfect for content consumption. Additionally, it supports stylus input, making it an excellent choice for creatives and designers who appreciate the ability to sketch or take notes directly on the screen.

Finally, the Lenovo 7144 combines performance with sleek aesthetics. This model features a backlit keyboard, enhancing productivity in low-light conditions. With fast charging capabilities and optimized thermal management, the Lenovo 7144 ensures that users can enjoy peak performance without overheating issues.

In conclusion, Lenovo’s offerings, including the 9728, 7628, 7484, 6302, and 7144, showcase a blend of performance, portability, security, and innovative design. These laptops cater to a diverse range of users, providing solutions that meet the demands of modern life while promoting efficiency and creativity.
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