Chapter 4. General checkout

Attention

The drives in the computer you are servicing might have been rearranged or the drive startup sequence might has been changed. Be extremely careful during write operations such as copying, saving, or formatting. Data or programs can be overwritten if you select an incorrect drive.

General error messages appear if a problem or conflict is found by an application program, the operating system, or both. For the explanation of these messages, refer to the information supplied with that software package.

Before replacing any a FRU, make sure that the latest level of Basic Input Output System (BIOS) is installed on your computer. A down-level BIOS might cause false errors and unnecessary replacement of the system board. For more information on how to determine and obtain the latest level BIOS, see “BIOS levels”

on page 99.

Use the following procedure to help you determine the cause of a problem:

1.Turn off all attached external devices and the computer.

2.Check all cables and power cords.

3.Set all display controls to the middle position.

4.Turn on all attached external devices and the computer.

•Look for the displayed error codes

•Listen for the beep codes

•Look for readable instructions or a main menu on the display.

If you do not receive the correct response, proceed to step 5 on page 33.

If you do receive the correct response, run the diagnostics. See “Running the diagnostic program from a diagnostic disc” on page 38.

5.Check the following conditions and follow the instructions:

•If you hear beep codes during power-on self-test (POST), go to “Beep symptoms” on page 61.

•If the computer displays a POST error, go to “POST error codes” on page 61.

•If the computer hangs and no error is displayed, go to “Power problems” on page 33.

Checking for power problems

If the computer does not turn on when the power switch is pressed, use the following procedure to help you solve the problem:

1.Press the power switch to turn on the computer. Check the power indicator light-emitting diode (LED) next to the power switch.

•If the LED is illuminated (on), the computer power is OK. Attempt to run the diagnostics. See “Running the diagnostic program from a diagnostic disc” on page 38.

•If the LED is not illuminated (off), go to step .

2.Check the status of the power indicator LED on the ac/dc power adapter.

•If the LED is illuminated (on), go to step .

•If the LED is not illuminated (off), go to the next step .

3.Verify that the power cord is correctly connected to an ac power outlet.

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Lenovo 3980, 5214, 5354, 3425 manual General checkout, Checking for power problems
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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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