Notes:

•Ensure that you use the correct screw. It is recommended to use new screws for replacements.

•If you have a torque screwdriver, tighten all screws firmly to the torque specified in the screw information table for each step.

•Ensure torque screw drivers are calibrated correctly following the country specifications.

Retaining serial numbers

This section includes the following descriptions:

•“Restoring the serial number of the system unit” on page 54

•“Retaining the UUID” on page 55

•“Reading or writing the ECA information” on page 55

Restoring the serial number of the system unit

When the computer was manufactured, the EEPROM on the system board was loaded with the serial numbers of the system and all major components. These numbers need to remain the same throughout the life of the computer.

If you replace the system board, you must restore the serial number of the system unit to its original value.

Before replacing the system board, save the original serial number by doing the following:

1.Install the LENOVO ThinkPad Hardware Maintenance Diskette Version 1.76 or later, and restart the computer.

2.From the main menu, select 1. Set System Identification.

3.Select 2. Read S/N data from EEPROM. The serial number of the system unit is listed as 20: Serial number.

4.Write down that number.

Note: The serial number of the system unit also is written on the label attached to the bottom of the computer.

After you have replaced the system board, restore the serial number by doing the following:

1.Install the LENOVO ThinkPad Hardware Maintenance Diskette Version 1.76 or later and restart the computer.

2.From the main menu, select 1. Set System Identification.

3.Select 1. Add S/N data from EEPROM. Follow the instructions on the screen.

If the MTM and Product ID numbers differ from each other on the rear label, use what is shown for the Product ID field. See example below:

MTM on rear label:

TTTT-CTO S/N SSSSSSS

54Hardware Maintenance Manual

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Lenovo T430U manual Retaining serial numbers, Restoring the serial number of the system unit, MTM on rear label
Page 59 Page 61

T430U specifications

The Lenovo T430U is a notable entry in Lenovo's ThinkPad series, designed to offer a blend of power, portability, and professional features suitable for business users and professionals on the go. This ultrabook stands out with its combination of performance, durability, and lightweight design.

One of the key features of the T430U is its high-definition display. The 14-inch screen offers a resolution of 1366 x 768 pixels, providing bright and clear visuals that enhance productivity. The anti-glare technology minimizes reflections, making it easier to work in various lighting conditions. The keyboard is another highlight, as it retains the signature ThinkPad style with customizable keys, a responsive feel, and an ergonomic design that ensures comfort during prolonged typing sessions.

Under the hood, the T430U is powered by Intel's third-generation Core processors, which deliver impressive performance while maintaining energy efficiency. The ultrabook can be configured with up to 8GB of RAM and offers solid-state drive (SSD) options for faster data access and boot times. This combination makes the T430U capable of handling multitasking with ease, whether it's running multiple applications or managing large datasets.

The T430U features advanced connectivity options, including USB 3.0 ports, an HDMI output, and Ethernet capabilities, ensuring compatibility with a wide range of peripherals and networks. Additionally, it incorporates Intel's Wi-Fi technology, providing reliable wireless connectivity for users working in diverse environments.

Security is a priority for Lenovo, and the T430U is equipped with features like a fingerprint reader and an integrated Trusted Platform Module (TPM) for enhanced data protection. These security measures make it a popular choice for businesses looking to safeguard sensitive information.

Battery life is another crucial aspect of the T430U, boasting an impressive runtime that allows users to work longer without frequent recharging. With its lightweight design, durable construction, and robust build quality, the T430U stands as a reliable partner for professionals who need to stay productive while on the move.

Overall, the Lenovo T430U exemplifies a perfect balance between performance, durability, and usability, making it a smart choice for anyone in need of a high-quality ultrabook that can keep up with the demands of modern work environments. Its combination of business-focused features, portability, and security empowers users to achieve their goals efficiently.
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