Notes:

a.The battery card assembly protects the integrity of the cached data on the RAID controller by providing backup power up to 72 hours in the case of a complete ac power failure or a brief power outage. It has built-in functionality to charge the battery pack automatically and to communicate battery status information such as voltage, temperature, and current to your server. It also provides an inexpensive alternative to using an uninterruptible power supply, and a second level of fault tolerance when used in conjunction with an uninterruptible power supply. For more information about the battery card assembly, see Appendix A “RAID battery card assembly” on page 105.

b.The battery card assembly option kit contains a user guide, the battery card assembly, and three Phillips-head screws. Do not remove the battery card assembly from the antistatic shipping container until you are ready to install it. When you remove the battery card assembly from your server, place it in its original container.

c.Check the appropriate support Web sites for the latest updates for your basic input/output system (BIOS) code, utility programs, device drivers, and other software applications. Follow the instructions provided by your Service Provider to download and install updates.

d.It is recommended that you replace the battery pack on the battery card assembly annually or after 500 recharging cycles, whichever comes first.

e.The temperature of the battery card assembly is generally 15-20°C (59-68°F) higher than the ambient temperature during fast charge. Therefore, to complete a fast charge cycle, the ambient temperature should be lower than 45°C (113°F). If the ambient temperature exceeds 45°C (113°F), the fast charge cycle will terminate prematurely, thus preventing the battery card assembly from reaching a fully charged state.

Attention:

•When attaching the battery card assembly to a PCI Express slot, center the Phillips-head screw driver to avoid damaging the screw head and do not over-tighten the screws as you might damage the battery card assembly.

•The battery in the battery card assembly must recharge for at least six hours during fast charge under normal operating conditions.

To install the battery card assembly onto the RAID controller, do the following:

Chapter 5. Installing, removing, or replacing hardware 45

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Lenovo 1047, 1046, 1045, 1048 manual Installing, removing, or replacing hardware
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1048, 1045, 1046, 1047 specifications

Lenovo has been a leading name in the PC industry, offering a diverse range of laptops designed to meet various computing needs. Among its popular models are the Lenovo 1047, 1046, 1045, and 1048, each catering to different segments of users with distinct features, technologies, and characteristics.

The Lenovo 1047 series is known for its robust performance and user-friendly design. It often comes equipped with the latest Intel or AMD processors, ensuring efficient handling of multitasking and heavy applications. This model typically features a Full HD display, providing users with a crisp and vibrant viewing experience, whether for work, gaming, or media consumption. The build quality is commendable, using premium materials that ensure durability while maintaining a sleek aesthetic.

Moving to the Lenovo 1046, this variant often focuses more on portability without compromising performance. Featuring a lightweight design, it is an ideal option for students and professionals who are constantly on the go. The battery life in the 1046 is typically enhanced, allowing users to work or stream content for extended periods without needing to recharge frequently. Additionally, this model may include features such as fast Wi-Fi connectivity and USB-C ports for versatile connectivity options.

The 1045 series highlights versatility, often designed for mixed usage scenarios. It generally incorporates advanced cooling technology to prevent overheating, even during intensive tasks. The display quality often balances between good resolution and energy efficiency, making it suitable for various environments. The 1045 might also include features like a fingerprint reader for added security and convenience, ensuring quick access while keeping data safe.

Lastly, the Lenovo 1048 targets budget-conscious consumers, providing essential features without breaking the bank. While it might have lower specs compared to its higher-tier counterparts, it often delivers solid performance for everyday tasks such as browsing, document editing, and streaming. The design remains appealing, with a user-friendly interface and reliable build quality. This series typically excels in value, making it an excellent choice for entry-level users and casual everyday computing needs.

Overall, Lenovo’s 1047, 1046, 1045, and 1048 models showcase the brand’s commitment to delivering a broad spectrum of laptops that cater to different user needs, merging technology with practicality for various computing environments.
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