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 LENOVO ThinkPad Hardware Maintenance Diskette Version 1.76 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 LENOVO ThinkPad Hardware Maintenance Diskette Version 1.76 or later.

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

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

3.To write ECA information, select 1. Write ECA/rework number from EEPROM, and follow the instruction.

4.To write box build date, select 4. Write box build date from EEPROM, and follow the instruction on the screen.

If the system board is being replaced, try to read the ECA information from the old system board and transfer the information to the new system. If the system board is inoperable, this will not be possible.

FRU replacement notices 77

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Lenovo 28472JU, SL410, SL510, 28472PU, 28472QU manual Reading or writing the ECA information
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28472QU, 28472PU, L410, SL510, SL410 specifications

Lenovo has long been synonymous with quality and performance in the realm of personal computing, and their lineup includes an array of dependable machines tailored for various user needs. Among these devices are the Lenovo L510, SL510, and their corresponding variants, such as the L510 28472JU, SL510 28472PU, and 28472QU. These models are positioned as reliable tools for business professionals, students, and casual users alike, boasting a blend of performance, portability, and affordability.

The Lenovo L510 and SL510 come equipped with Intel processors that ensure quick processing speeds and multitasking capabilities. These devices often feature dual-core processors from the Intel Pentium or Core series, enabling smooth operation when running multiple applications simultaneously. With their efficient architecture, these processors are well-suited for everyday tasks such as word processing, web browsing, and media consumption.

In terms of memory and storage, models like the L510 28472JU and SL510 28472PU typically offer variations of RAM ranging from 2GB to 4GB, allowing for adequate speed in performance, especially when handling light multitasking. Coupled with hard drive options that can reach up to 500GB, users have ample space to store files, applications, and media.

These laptops feature a durable design, with a sturdy chassis that can withstand the rigors of daily use. Their ergonomic keyboards provide a comfortable typing experience, crucial for long working sessions. In addition to this, the displays are designed to strike a balance between brightness and clarity, ensuring that visuals are sharp and vibrant for both work and entertainment.

Connectivity options are abundant, with ports for USB, HDMI, and Ethernet, as well as built-in Wi-Fi and sometimes Bluetooth capability. This allows for seamless integration with various peripherals and networks, making these models versatile for business environments and home use alike.

Battery life is also a notable feature, with many Lenovo models designed to last several hours on a single charge, catering to users who value portability. The thermal management technology integrated into these laptops ensures efficient heat dissipation, prolonging the longevity of the device.

In summary, the Lenovo L510, SL510, and their specific variants stand out in Lenovo's product offering by combining reliable performance with user-friendly features. They cater to a wide audience looking for an effective balance of functionality, durability, and design, making them a worthy consideration for anyone in search of a dependable laptop.
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