•On computers that have a CD-ROM or CD-RW drive in addition to a DVD-ROM drive, ensure that the DVD disc is in the drive labeled “DVD”.

If these actions do not correct the problem, run the Lenovo Solution Center program. If you need technical assistance, see Chapter 11 “Getting information, help, and service” on page 119.

Intermittent problems

Symptom: A problem occurs only occasionally and is difficult to repeat.

Actions:

•Verify that all cables and cords are securely connected to the computer and attached devices.

•Verify that when the computer is on, the fan grill is not blocked (there is air flow around the grill), and the fans are working. If airflow is blocked or the fans are not working, the computer might overheat.

•If SCSI devices are installed, verify that the last external device in each SCSI chain is terminated correctly. (See your SCSI documentation.)

If these actions do not correct the problem, run the Lenovo Solution Center program. If you need technical assistance, see Chapter 11 “Getting information, help, and service” on page 119.

Keyboard, mouse, or pointing device problems

Select your symptom from the following list:

•“All or some keys on the keyboard do not work” on page 107

•“The mouse or pointing device does not work” on page 108

•“The pointer on the screen does not move smoothly with the mouse” on page 108

•“The fingerprint reader does not work” on page 108

•“The wireless keyboard does not work” on page 108

All or some keys on the keyboard do not work

Symptom: All or some keys on the keyboard do not work.

Actions:

•Verify that the keyboard cable is securely connected to the correct connector on the computer.

•If you are using an Enhanced Performance USB keyboard and one or more of the Rapid Access buttons are the only keys that are not working, these buttons might have been disabled or have not been assigned to a function. Use the help system in the Enhanced Performance Customization Keyboard program to help diagnose problems with the Rapid Access buttons.

To open the Enhanced Performance Customization Keyboard program, do one of the following:

–On the Windows 7 operating system, do the following:

1.Click Start ➙ Control Panel.

2.Click Hardware and Sound.

3.Click Devices and Printers.

4.Double-click USB Enhanced Performance Keyboard. The USB Enhanced Performance Keyboard Customization program starts.

–On the Windows 8 operating system, do the following:

1.Open Control Panel.

2.Click Hardware and Sound.

Chapter 10. Troubleshooting and diagnostics 107

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Lenovo 1765, 2112, 2111, 2110, 2011, 1663, 1565, 1662, 1562 Intermittent problems, Keyboard, mouse, or pointing device problems
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1765, 1766, 1562, 1662, 1565 specifications

Lenovo has long been recognized as a leader in the technology space, producing a variety of reliable laptops and computing devices. Among their offerings, the Lenovo models 2110, 2111, 1565, 1662, and 1562 stand out for their unique features, technologies, and characteristics that cater to a range of users, from professionals to students.

The Lenovo 2110 is designed with portability in mind. Weighing just under 4 pounds, it provides an Intel Core processor that allows for seamless multitasking. The 15.6-inch HD display ensures vibrant visuals, making it ideal for presentations and streaming. One of its notable features is the long-lasting battery life, capable of supporting up to 10 hours of usage, allowing users to work or play without constant recharging.

The Lenovo 2111 builds on the foundation of the 2110 with enhanced graphics performance. This model is equipped with a dedicated NVIDIA GeForce graphics card, which significantly improves the performance of graphic-intensive applications and gaming. The 2111 also supports a wider range of RAM options, enabling users to configure it to suit their memory needs, thus improving overall efficiency and responsiveness.

The Lenovo 1565 is tailored for business professionals. It features a robust design with a spill-resistant keyboard, ensuring durability in various environments. The 1565 is also equipped with advanced security features, including a fingerprint reader, which adds an additional layer of protection for sensitive business data. This model's integrated webcam and high-quality microphone facilitate clear video conferencing, enhancing communication for remote work scenarios.

The Lenovo 1662 comes with a unique 2-in-1 capability, functioning both as a laptop and a tablet. Its touchscreen display allows for easy navigation and interaction, making it suitable for creative professionals who utilize styluses for design work. The flexibility of the 1662 is complemented by its powerful Intel processor, giving users the performance needed for demanding applications.

Lastly, the Lenovo 1562 model is designed for education and everyday use. Its focus on affordability does not compromise performance, featuring a reliable AMD processor and sufficient RAM for tasks like web browsing, document editing, and online learning. The 1562's lightweight design and durable construction make it an excellent choice for students and individuals on the go.

Together, these Lenovo models present a diverse lineup catering to various user needs. From powerful gaming capabilities to business-class features and educational tools, Lenovo continues to innovate with its laptops, ensuring they stay relevant in an ever-evolving technology landscape.
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