•On computers that have a CD-ROM or CD-RW drive in addition to a DVD-ROM drive, make sure 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 117.

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 117.

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 105

•“The mouse or pointing device does not work” on page 106

•“The pointer on the screen does not move smoothly with the mouse” on page 106

•“The fingerprint reader does not work” on page 106

•“The wireless keyboard does not work” on page 106

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 105

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Lenovo 3261, 3267, 3264, 3263, 3273, 4156, 4004, 3856 manual Intermittent problems, Keyboard, mouse, or pointing device problems
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4004, 3263, 3264, 4156, 3261 specifications

Lenovo has long been at the forefront of the technology landscape, offering a diverse range of products designed to meet the needs of various users. Among its notable offerings are the models 3273, 3856, 3267, 3261, and 4156, each tailored for specific applications and user requirements.

The Lenovo 3273 is designed for business professionals who seek reliability and performance. It features a robust Intel processor that ensures seamless multitasking capabilities. With an emphasis on security, the 3273 includes built-in encryption features and a fingerprint reader to protect sensitive information. Furthermore, it boasts an LCD display with vibrant colors, enhancing the visual experience during presentations or video conferences.

The Lenovo 3856 stands out for its ultra-portable design, catering to users who prioritize mobility. This model incorporates lightweight materials without compromising durability. It features an extended battery life, allowing users to remain productive throughout the day. Additionally, the inclusion of fast-charging technology ensures that even short charging sessions provide significant usage time, making the 3856 perfect for on-the-go professionals.

The Lenovo 3267 is tailored for creative individuals and content producers. It comes equipped with high-resolution graphics capabilities and ample storage options to handle large files and demanding applications. The touchscreen display adds versatility, allowing for intuitive interactions that enhance productivity during design, editing, and other creative processes. Its audio system is also optimized, providing rich sound that enhances multimedia experiences.

For those in educational settings, the Lenovo 3261 is an excellent choice. It is designed with durability in mind, featuring a rugged build that can withstand daily wear and tear. The model also includes educational software packages that support learning and development. Its user-friendly interface makes it accessible to students of all ages, fostering an engaging learning environment.

Lastly, the Lenovo 4156 is suitable for gamers and demanding users. With advanced cooling technologies and a powerful graphics card, the 4156 provides an immersive gaming experience. Its customizable keyboard and enhanced audio features allow gamers to have complete control and an engaging atmosphere during play. Furthermore, it supports virtual reality capabilities, making it a future-ready option for gamers looking to delve into new realms of entertainment.

In summary, Lenovo's models – the 3273, 3856, 3267, 3261, and 4156 – represent the brand’s commitment to innovation, functionality, and user satisfaction. Each model is designed with distinct features, technologies, and characteristics, catering to the varied needs of professionals, students, creatives, and gamers alike. Lenovo's diverse portfolio continues to position it as a leader in the technology market.
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