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 106 for instructions). If you need technical assistance, see Chapter 11 “Getting information, help, and service” on page 109.

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 95

•“The mouse or pointing device does not work” on page 96

•“The pointer on the screen does not move smoothly with the mouse” on page 96

•“The fingerprint reader does not work” on page 96

•“The wireless keyboard does not work” on page 96

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 95

5048, 5069, 7517, 1730, 4166 specifications

Lenovo has consistently been a frontrunner in the technology landscape, particularly in the realm of laptops and personal computers. Among its diverse product lineup, models such as the Lenovo 5034, 4169, 268, 5030, and 5037 stand out for their robust features and innovative technologies.

The Lenovo 5034 is designed for business professionals and students alike. This model is powered by the latest Intel processors, offering swift performance for multitasking. It features a durable design, making it ideal for on-the-go use. One of its notable characteristics is its long-lasting battery life, allowing users to work for extended periods without needing to recharge. Its full HD display offers vibrant visuals, enhancing productivity during presentations or media consumption.

Next, the Lenovo 4169 targets budget-conscious consumers without compromising on performance. Equipped with an efficient AMD processor, it handles everyday tasks seamlessly. The laptop's lightweight design coupled with an ergonomic keyboard ensures comfort during prolonged use. Additionally, the 4169 incorporates ample storage options, providing users with space for documents, media, and applications.

The Lenovo 268 model is tailored for gamers, featuring discrete NVIDIA graphics that bring games to life with stunning detail. This model is also known for its high refresh rate display, which provides smooth visuals during fast-paced gaming sessions. The cooling technology integrated into the 268 ensures that the laptop remains cool even under heavy load, enhancing overall performance.

The Lenovo 5030, on the other hand, targets creative professionals with its powerful hardware. It comes equipped with a high-end Intel Core i7 processor and sufficient RAM to handle graphic design and video editing software effectively. The 5030's UHD display offers excellent color accuracy, an essential feature for photographers and designers. Moreover, its extensive connectivity options allow users to connect multiple peripherals effortlessly.

Lastly, the Lenovo 5037 reinforces the brand's commitment to sustainability and eco-friendliness. Using recycled materials in its construction, this model aims to reduce environmental impact. It also features energy-efficient components to improve battery longevity and overall energy consumption. The device is built with user security in mind, incorporating biometric authentication technologies to safeguard sensitive information.

In summary, the Lenovo 5034, 4169, 268, 5030, and 5037 each deliver unique features and technological advancements, catering to a wide range of users, from business professionals to gamers and creatives. Lenovo’s emphasis on performance, durability, and sustainability makes these models worthy contenders in the competitive laptop market.

Lenovo 4169, 7517, 5069, 5048 Intermittent problems, Keyboard, mouse, or pointing device problems

Models: 5048 5069 7517 1730 4166 5037 5030 268 4169 5034