Figure 17. Installing the optical drive

7. Connect the signal cable and the power cable to the rear of the new optical drive.

What to do next:

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

•To complete the replacement, go to “Completing the parts replacement” on page 84.

Replacing the heat sink

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.

CAUTION:

The heat sink 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, do the following:

1.Remove the computer cover. See “Removing the computer cover” on page 68.

2.Locate the heat sink. See “Locating components” on page 66.

3.Remove the four screws that secure the heat sink. Then, lift the heat sink off the system board.

Notes:

a.Carefully remove the four screws from the system board to avoid any possible damage. The four screws cannot be removed from the heat sink.

b.You might have to gently twist the heat sink to free it from the microprocessor.

c.When handling the heat sink, do not touch the thermal grease on the bottom of the heat sink.

76Hardware Maintenance Manual

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Lenovo 3425, 5214, 5354, 3980 manual Replacing the heat sink, Installing the optical drive
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5354, 3980, 5214, 3425 specifications

The Lenovo 3425, 5214, 3980, and 5354 are part of Lenovo's diverse lineup of laptops, each designed with unique features and technologies catered to various user needs.

Starting with the Lenovo 3425, this model stands out for its portability and performance. It typically offers a lightweight design with a robust build quality, ideal for on-the-go professionals or students. The laptop is powered by AMD processors, ensuring good processing power for multitasking and productivity tasks. With a comfortable keyboard and intuitive layout, users can enjoy a smooth typing experience. The screen is often equipped with an HD display, providing clear visuals for work or entertainment. Lenovo’s TruVivid technology enhances color accuracy, making it suitable for graphic design and photo editing.

The Lenovo 5214 emphasizes versatility and connectivity. It usually features an array of ports, including USB-C, HDMI, and Ethernet, allowing users to connect various peripherals easily. This model is often tailored for business professionals, with enhanced security features such as a fingerprint reader and TPM (Trusted Platform Module) for encrypted data storage. The display is often anti-glare, making it convenient for use in different lighting conditions. Additionally, the battery life is commendable, ensuring users can work for extended periods without frequent recharges.

The Lenovo 3980 is geared towards gamers and creative professionals. This model typically includes higher-end graphics options such as NVIDIA or AMD GPUs, enabling smooth gameplay and graphic-intensive applications. A high-refresh-rate display enhances gaming experiences, allowing for fluid motion and reduced blur. The design often incorporates advanced thermal management to keep the laptop cool during long gaming sessions, while customizable RGB keyboard backlighting offers a personalized touch.

Lastly, the Lenovo 5354 is designed for multimedia enthusiasts, featuring enhanced audio technologies and high-resolution displays. This model often integrates Dolby Audio for immersive sound quality, elevating the multimedia consumption experience. Its larger screen size and higher pixel density make it ideal for watching movies or editing videos. Additionally, the laptop's optimized battery efficiency ensures that users can enjoy their favorite media without frequent interruptions from charging.

Each of these Lenovo models embodies a commitment to quality and performance, tailored to meet the diverse demands of modern users, from business professionals to gamers and creative artists.
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