FRU replacement notices

Retaining the UUID

The Universally Unique Identifier (UUID) is a 128-bit number uniquely assigned to your computer at production and stored in the EEPROM of your system board. The algorithm that generates the number is designed to provide unique IDs until the year A.D. 3400. No two computers in the world have the same number.

When you replace the system board, you must set the UUID on the new system board as follows:

1.Install the ThinkPad Hardware Maintenance Diskette Version 1.69 or later, and restart the computer.

2.From the main menu, select 4. Assign UUID.

A new UUID is created and written. If a valid UUID already exists, it is not overwritten.

Reading or writing the ECA information

Information on Engineering Change Announcements (ECA) are stored in the EEPROM of the system board. The electronic storage of this information simplifies the procedure to check if the ECA has been previously applied to a machine. The machine does not need to be disassembled to check for the ECA application.

To check what ECAs have been previously applied to the machine, use the ECA Information Read/Write function on the ThinkPad Hardware Maintenance Diskette Version 1.69 or later.

1.Insert the ThinkPad Hardware Maintenance Diskette Version 1.69 or later, and restart the computer.

2.From the main menu, select 6. Set ECA Information.

3.To read ECA information, select 2. Read ECA/rework number from EEPROM and follow the instruction.

4.To read box build date, select 5. Read box build date from EEPROM, and follow the instruction on the screen.

After an ECA has been applied to the machine, the EEPROM must be updated to reflect the ECA's application. Use the ThinkPad Hardware Maintenance Diskette Version 1.69 or later to update the EEPROM.

Note: Only the ECA number is stored in the EEPROM. The machine type of the ECA is assumed be the same as the machine type of the machine that had the ECA applied to it.

1.Insert the ThinkPad Hardware Maintenance Diskette Version 1.69 or later, and restart the computer.

2.From the main menu, select 6. Set ECA Information.

ThinkPad G40, G41 63

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Lenovo G41 manual Retaining the Uuid, Reading or writing the ECA information

G41 specifications

The Lenovo G41 is a noteworthy addition to Lenovo's lineup of laptops, designed to meet the computing needs of both professionals and casual users alike. With its robust features and practical design, the G41 stands out as a reliable choice for everyday tasks.

At the heart of the Lenovo G41 is its powerful processor. Equipped with Intel’s latest generation CPUs, it offers a seamless performance for multitasking and running demanding applications. Users can choose configurations ranging from Intel Core i3 to i7, depending on their performance requirements. This flexibility makes the G41 suitable for both light office work and intensive applications.

The G41 boasts a vibrant display that enhances the overall user experience. With a 14-inch or 15.6-inch screen option, users can enjoy clear visuals and sharp text. The resolution typically reaches up to Full HD, making it ideal for media consumption, whether streaming videos or viewing high-resolution images. Additionally, the anti-glare feature allows users to work comfortably in various lighting conditions.

In terms of memory and storage, the Lenovo G41 supports ample RAM and storage options. With configurations that can reach up to 16GB of RAM, users can expect efficient handling of multiple applications simultaneously. For storage, users can opt for fast SSD drives or traditional HDDs, providing a balance between speed and capacity to suit their needs.

The G41 does not compromise on connectivity either. It includes a variety of ports, such as USB 3.0 and HDMI, ensuring compatibility with modern peripherals and external displays. Additionally, integrated Wi-Fi and Bluetooth capabilities allow users to connect effortlessly to networks and devices.

Durability is another key characteristic of the Lenovo G41. Designed with a sturdy build, it can withstand the rigors of daily use, making it a practical choice for students and professionals on the go. The ergonomic keyboard is comfortable for prolonged typing sessions, enhancing productivity.

In conclusion, the Lenovo G41 combines performance, versatility, and durability, making it an appealing option in the competitive laptop market. Whether for professional use, educational purposes, or casual browsing, the G41 is a reliable companion ready to meet various user demands. With its range of features and technologies, it represents a smart investment for anyone in need of a capable and robust laptop.