All external SCSI options are turned on. External SCSI options must be turned on before the computer is turned on. For more information, see your SCSI documentation.

Verify that the option and any required device drivers are installed correctly.

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.

Performance and lockup problems

Poor performance and lockup problems can be a result of any of the following:

“Insufficient free hard disk drive space” on page 114

“Excessive number of fragmented files” on page 115

“Insufficient memory” on page 115

Make a selection from the above list to find out more about the corrective actions you can take.

Insufficient free hard disk drive space

Symptom: Insufficient free hard disk drive space

The Windows operating system will slow down and might produce errors if the hard disk drive gets too full.

To check the amount of free space on the Windows 7 operating system, do the following:

1.Click Start Computer.

2.Right-click your C drive entry and then click Properties. The amount of free disk space is displayed.

To check the amount of free space on the Windows 8 operating system, do the following:

1.Open the Windows Explorer and click Computer.

2.Right-click your C drive entry and then click Properties. The amount of free disk space is displayed.

To free up disk space, do any of the following:

Procedure 1

1.On the Windows 7 operating system, click Start Computer. On the Windows 8 operating system, open the Windows Explorer and click Computer.

2.Right-click your C drive entry and then click Properties.

3.Click Disk Cleanup.

4.A list of unnecessary file categories is displayed. Select each file category you want to delete, and then click OK.

Procedure 2

1.Open Control Panel.

2.Click Programs.

3.Click Turn Windows features on or off.

4.A list of optional Windows components is displayed. Follow the instructions on the screen.

Procedure 3

1.On the Windows 7 operating system, click Start Computer. On the Windows 8 operating system, open the Windows Explorer and click Computer.

2.Right-click your C drive entry and then click Properties.

3.Click Disk Cleanup.

114ThinkCentre User Guide

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Lenovo 1662, 2112, 2111, 2110 Performance and lockup problems, Insufficient free hard disk drive space, Click Start Computer

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.