• Press Fn+F2 to confirm whether the LCD screen has been turned off.

If the problem persists, follow the solution to “The screen is unreadable or distorted.” on page 53.

The screen is unreadable or distorted.

Make sure that:

The display device driver is installed correctly.

The screen resolution and color quality are correctly set.

The monitor type is correct.

Incorrect characters are displayed on the screen.

Did you install the operating system or application program correctly? If they are installed and configured correctly, have the computer serviced.

When I turn on the computer, nothing is displayed on the screen and the computer does not beep while starting up.

Make sure that:

The battery is installed correctly.

The ac power adapter is connected to the computer and the power cord is plugged into a working electrical outlet.

The computer is turned on. (Press the power button again for confirmation.)

If these items are correctly set, and the screen remains blank, have the computer serviced.

When I turn on the computer, only a white cursor is displayed on a blank screen.

Restore your backup files or restore your computer to the factory default settings using the preinstalled recovery programs on your computer. If the problem persists, have the computer serviced.

My screen goes blank while the computer is on.

Your screen saver or power management may be enabled. Do one of the following to exit from the screen saver or to resume from sleep or hibernation mode:

Press the Fn key.

Press the power button.

Press Fn+F2 to confirm whether the LCD screen has been turned off.

Problems with drives and other storage devices

This section includes hard disk drive problems and optical drive problems.

Hard disk drive problems

Print these instructions now and keep it with your computer for reference later.

The hard disk drive makes a rattling noise intermittently.

The rattling noise might be heard:

When the hard disk drive begins or finishes getting access to data.

When you carry the hard disk drive.

When you carry your computer.

Chapter 9. Troubleshooting computer problems 53

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Lenovo B580, B480 manual Problems with drives and other storage devices, Hard disk drive problems

B580, B480 specifications

The Lenovo B480 and B580 are part of Lenovo's Essential series, designed for home and business users seeking reliable performance combined with an affordable price point. These laptops offer a range of features and technologies that cater to everyday computing needs while ensuring efficiency and productivity.

The B480 and B580 are equipped with Intel’s third-generation Core processors, enabling smooth multitasking and enhanced performance for various applications. Users can opt for configurations ranging from the Intel Core i3 to the more powerful Core i5 processors, allowing for flexibility based on individual requirements.

One of the main features of the Lenovo B480 and B580 is their 14-inch and 15.6-inch displays, respectively. The displays provide vibrant visuals with a resolution of 1366 x 768, making them suitable for watching movies, browsing the web, and completing work tasks. The B580's larger screen size is particularly appealing for those who prefer a more spacious viewing experience.

Both laptops come with ample storage options, featuring traditional hard disk drives (HDD) with capacities of up to 1TB. This allows users to store a significant amount of data, including documents, multimedia files, and software applications. Furthermore, the inclusion of a DVD drive in both models enhances their versatility, allowing users to play and burn CDs and DVDs.

In terms of memory, the B480 and B580 typically support up to 8GB of DDR3 RAM, ensuring smooth performance when running multiple applications simultaneously. The systems also include integrated Intel HD Graphics, which provide adequate graphics performance for standard tasks, casual gaming, and media playback.

Connectivity options are generous with several USB ports, HDMI output, and Ethernet ports available on both models. The inclusion of Wi-Fi and Bluetooth allows for easy wireless connections to networks and peripherals, enhancing the overall user experience.

Additionally, Lenovo's proprietary software tools contribute to the functionality of the B480 and B580. Lenovo Solution Center and OneKey Recovery simplify system management and provide users with an easy way to back up their data.

In conclusion, the Lenovo B480 and B580 are reliable laptops equipped with essential features and technologies suitable for a wide range of users. With their balance of performance, storage options, and connectivity, these models offer great value for anyone looking for a dependable and affordable laptop.