Intermittent problems

•Ensure that a DVD disc is in the drive with the shiny side of the disc facing down.

•Ensure that video resolution is set to less than 1152 x 864.

•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 diagnostic programs (see “Diagnostic programs” on page 114 for instructions). If you need technical assistance, see Chapter 11 “Getting information, help, and service” on page 117.

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.)

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 103

•“The mouse or pointing device does not work” on page 104

•“The pointer on the screen does not move smoothly with the mouse” on page 104

•“The fingerprint reader does not work” on page 104

•“The wireless keyboard does not work” on page 104

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.

•On the Windows Vista operating system, do the following:

1.Click Start ➙ Control Panel.

2.Click Hardware and Sound.

3.In the Keyboard topic, click Check keyboard status.

4.Click Properties for keyboard details and to see if the keyboard is working properly or not.

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

Chapter 10. Troubleshooting and diagnostics 103

1271, 3664, 3629, 3660, 3654 specifications

Lenovo has established a strong presence in the computing market with a diverse lineup of laptops and desktops, catering to various user needs. Among these, the Lenovo 3676, 3578, 3598, 3594, and 3668 models stand out due to their commendable features and specifications.

The Lenovo 3676 is known for its robust performance capabilities, delivering optimal efficiency through high-performance processors. It typically features AMD Ryzen or Intel Core processors, ensuring smooth multitasking and responsiveness. Users can expect a generous amount of RAM, enhancing the device’s capability to handle demanding applications seamlessly. Its storage options often include SSDs, which significantly improve load times and overall system responsiveness.

The 3578 model is tailored for everyday computing tasks, making it ideal for students and professionals alike. This model usually features a sleek design while providing access to modern connectivity options like USB-C, HDMI, and multiple USB ports. Its display often offers vibrant colors and adequate resolution, making it suitable for both work and multimedia consumption.

Next in line, the Lenovo 3598 stands out with its emphasis on gaming and multimedia. It features dedicated graphics options that elevate gaming experiences and video editing tasks. The thermal management system in the 3598 is designed to maintain optimal performance during intensive usage, which is a significant advantage for gamers and content creators.

The 3594 model offers a balance of price and performance. It is designed for users who seek functionality without compromising on quality. The laptop's ergonomic design, combined with a comfortable keyboard and touchpad, enhances the overall user experience. Furthermore, battery life is often extended in this model, allowing for uninterrupted productivity throughout the day.

Lastly, the Lenovo 3668 appeals to those looking for a versatile family device. With features that support multimedia consumption, light gaming, and casual productivity tasks, it is an ideal choice for households. Its expansive storage options, coupled with a user-friendly interface, make it accessible for users of all ages.

In summary, the Lenovo 3676, 3578, 3598, 3594, and 3668 models each offer unique features tailored to different segments of the market. Whether for gaming, everyday use, or family activities, Lenovo continues to innovate and provide tailored solutions that appeal to a broad audience. With their impressive specifications and robust performance, these models reinforce Lenovo's reputation as a reliable brand in the computing landscape.

Lenovo 3596, 3668, 967, 900 Intermittent problems, Keyboard, mouse, or pointing device problems

Models: 1271 3664 3629 3660 3654 967 3596 900 3668 3594 3598 3578 3676