Lenovo 57323748, B550 manual Appendix D. Customer replaceable units CRUs

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Appendix D. Customer replaceable units (CRUs)

Customer Replaceable Units (CRUs) are computer parts that can be upgraded or replaced by the customer. There are two types of CRUs: internal and external. External CRUs are easy to install, whereas internal CRUs require some technical skills and in some cases might require tools such as a screwdriver. However, both internal and external CRUs are safe for removal by the customer.

Customers are responsible for replacing all external CRUs. Internal CRUs can be removed and installed by customers or by a Lenovo service technician during the warranty period.

Your computer contains the following types of external CRUs:

•External CRUs (pluggable): These CRUs unplug from the computer. Examples of these types of CRUs include the AC adapter and power cord.

•External CRUs with latches: These CRUs include a latch to help you remove and replace the part. Examples of these types of CRUs include the notebook main battery, an optical drive, a hard-disk drive, and an extended battery.

Your computer contains the following types of internal CRUs:

•Internal CRUs (located behind an access panel): These CRUs are isolated parts within the computer that are concealed by an access panel that is typically secured by either one or two screws. Once the access panel is removed, only the specific CRU is visible. Examples of these types of CRUs include memory modules and hard disk drives.

•Internal CRUs (located within the product): These CRUs are accessible only by opening the computer’s outer case. Examples of these CRUs include PCI Express Mini Cards and the integrated keyboard.

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Contents Lenovo B550 First Edition January Copyright Lenovo Dear user Explanation of hard disk capacity Contents „ Read this first Important safety informationImportant safety information UnpackImportant safety information Correct usage proceduresService and upgrades Getting to know your computer Select models only Getting to know your computer Power buttonSystem status TouchpadRJ-45 port Getting to know your computerFan louvers VGA portUSB port Optical driveSpeakers Microphone jack Headphone jackManual Battery pack Battery latchSpring loaded Hard disk drive Learning the basics „ Connecting to the power„ Configuring the operating system „ Reading the manualsLearning the basics „ Shutting down your computerPutting your computer into sleep state „ Charging the battery Using AC adapter and battery„ Checking battery status „ Removing the battery pack„ Handling the battery Left click button„ Numeric keypad „ Function key combinationsLearning the basics OneKey Rescue system button System status indicators E f„ Using passwords „ Using VeriFace„ Attaching a security lock not supplied „ Connecting a Bluetooth enabled device select models only Connecting external devices„ Connecting a universal serial bus USB device Enabling Bluetooth communications„ Software configuration Using the Internet„ Hardware connection Using the Internet Wireless connection„ Using Wi-Fi/WiMAX Enabling wireless connectionOneKey Rescue system „ IntroductionTroubleshooting Frequently asked questionsTroubleshooting What can I do if the backup process fails?Display problems Password problemTroubleshooting Sleep or hibernation problems Computer screen problemsHard disk drive problem Troubleshooting Sound problemsBattery problems Startup problemTroubleshooting Other problems To replace the battery, do the following Replacing the batteryUpgrading and replacing devices Handling a hard disk drive Replacing the hard disk driveUpgrading and replacing devices To replace the hard disk drive, do the followingUpgrading and replacing devices To install an SO-DIMM, do the following Upgrading and replacing devices Removing the optical drive To remove the optical drive, do the followingUpgrading and replacing devices Appendix A. Getting help and service Calling the customer support centerAppendix A. Getting help and service Getting help around the worldLenovo warranty service telephone numbers Warranty Service Telephone NumbersCaring for your computer „ Be careful about where and how you workAppendix B. Use, and care information „ Notice of static-electricity„ For outdoor use „ Be gentle with your computer„ Carry your computer properly „ Handle storage media and drives properly„ Take care in setting passwords „ Data safety„ Other important tips „ What if you are traveling? „ Ergonomic information„ Questions about vision? „ General tips for maintenance „ Cleaning your computer keyboard „ Cleaning the cover of your computer„ Cleaning your computer display „ How to obtain warranty service Appendix C. Lenovo limited warranty„ What this warranty covers „ What your service provider will do to correct problemsAppendix C. Lenovo limited warranty „ Replacement of a product or part„ Your additional responsibilities „ Use of personal information „ What this warranty does not cover„ Limitation of liability „ Other rights „ Dispute resolution„ European Economic Area EEA „ Suplemento de Garantía para México „ Lenovo Turkey address Lenovo Technology B.V. Turkiye Istanbul SubesiCourier or Depot Service „ Types of warranty serviceCustomer Replaceable Unit CRU Service On-site Service Customer Carry-In or Mail-In ServiceAppendix C. Lenovo limited warranty Product Exchange Service Appendix D. Customer replaceable units CRUs Appendix E. Notices „ Export classification notice Appendix E. NoticesWindows Energy Star model informationWindows XP Wireless related information „ Wireless interoperability„ Safety information related to Mobile Broadband „ Usage environment and your healthTV tuner information Appendix E. Notices Electronic emissions notices „ Federal Communications Commission FCC Statement„ Avis de conformité à la réglementation d’Industrie Canada „ Industry Canada Class B Emission Compliance Statement„ German Class B Compliance Statement „ European Union Compliance Statement Class B Compliance Weee and recycling statements Türkiye EEE Yönetmeliğine Uygunluk BeyanıTurkish statement of compliance EU Weee statements Japan recycling statements„ Disposing of a Lenovo Computer Components Appendix E. Notices Appendix F. Features and specifications Trademarks Index Index Page Do not Return IT to the Store New World. New Thinking.TM

B550, 57323748 specifications

The Lenovo B550 (model number 57323748) is a versatile and efficient business laptop designed to meet the demands of professional users who require both performance and reliability. This model stands out in Lenovo's lineup due to its well-balanced combination of features, technologies, and characteristics, making it an ideal choice for both on-the-go professionals and office environments.

One of the key features of the B550 is its durable design. The laptop is built with robust materials that withstand the rigors of frequent travel while maintaining a sleek and professional appearance. The spill-resistant keyboard adds an additional layer of protection, ensuring that accidental spills won't jeopardize the device's functionality.

Under the hood, the Lenovo B550 is powered by a choice of the latest Intel or AMD processors, delivering exceptional processing power for multitasking and demanding applications. Coupled with generous RAM options, users can seamlessly run multiple applications without experiencing lag, making it an efficient tool for productivity.

The B550 also boasts impressive storage options, including solid-state drives (SSDs) that not only increase the speed of boot times and application launches but also enhance overall system performance. Users can choose from a variety of storage capacities to suit their needs, ensuring that they have ample space for files and applications.

Display quality is important for any laptop, and the B550 does not disappoint. It features a high-resolution display with vibrant colors and sharp details, ensuring that users can enjoy crisp visuals whether they're working on a presentation or watching multimedia content. Additionally, anti-glare technology helps reduce eye strain during extended use.

Connectivity is another strong point of the B550. The laptop comes equipped with a range of ports, including USB Type-C, HDMI, and various USB-A ports, allowing for easy connection to peripherals and external displays. Additionally, integrated Wi-Fi and Bluetooth technologies provide reliable wireless connectivity for internet access and device pairing.

Security features are also a priority for the Lenovo B550. The device includes a fingerprint reader and TPM (Trusted Platform Module) to protect sensitive data and ensure secure login. This is particularly important for business users handling confidential information.

In conclusion, the Lenovo B550 (57323748) is a well-rounded business laptop that emphasizes durability, performance, and security. Its combination of advanced technologies and user-friendly features makes it a solid choice for professionals seeking a reliable machine that can keep up with their fast-paced work environment.
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