An option that previously worked does not work now

Symptom: An option that previously worked does not work now.

Actions:

•Verify that all option hardware and cable connections are secure.

•If the option comes with its own test instructions, use those instructions to test the option.

•If the failing option is a SCSI option, verify that:

–The cables for all external SCSI options are connected correctly.

–The last option in each SCSI chain, or the end of the SCSI cable, is terminated correctly.

–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 diagnostic programs (see “Diagnostic programs” on page 108 for instructions). If you need technical assistance, see Chapter 11 “Getting information, help, and service” on page 111.

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 104

•“Excessive number of fragmented files” on page 105

•“Insufficient memory” on page 105

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.

104ThinkCentre User Guide

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Lenovo 3493 Performance and lockup problems, An option that previously worked does not work now, Click Start Computer
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3493, 3496, 3493DFU specifications

The Lenovo 3493DFU, 3496, and 3493 are part of Lenovo's series of durable and reliable laptops designed for both personal and professional use. These models are particularly notable for their robust build quality, processing power, and array of features that cater to different user needs.

The Lenovo 3493DFU is equipped with an AMD processor, which provides efficient performance for multitasking and everyday computing tasks. It features a 15.6-inch HD display that offers vibrant colors and decent viewing angles. This model is designed with portability in mind, weighing around 5.6 pounds, making it easy to carry for users on the go. The Lenovo 3493DFU also includes a full-sized keyboard that enhances typing comfort and precision, ideal for long hours of work or study.

Meanwhile, the Lenovo 3496 is known for its impressive storage capabilities. With options for a solid-state drive (SSD) or a larger hard disk drive (HDD), users can choose the best fit according to their storage needs. The 3496 also features the latest USB ports, including USB 3.0, enabling faster data transfer and connection to a variety of peripherals. Its integrated graphics cater well to casual gamers and multimedia enthusiasts, ensuring a smooth experience with movies and videos.

On the other hand, the Lenovo 3493 is tailored more towards business users who require a reliable laptop for everyday tasks. It boasts an efficient Intel processor that balances power and battery life. The battery life is one of its standout features, allowing for extended use without requiring frequent recharging. This model also includes robust security features, such as a fingerprint reader and TPM (Trusted Platform Module), which enhance data protection and privacy.

All three models feature Lenovo’s innovative technologies, such as Lenovo Vantage, which simplifies system updates, device management, and access to support. These laptops are also outfitted with a range of connectivity options, including HDMI and RJ-45, which facilitate seamless connections to external displays and networks.

In summary, the Lenovo 3493DFU, 3496, and 3493 are versatile laptops that cater to various user requirements, whether for personal use, casual gaming, or professional tasks. With their strong performance, reliable build quality, and cutting-edge features, they represent great choices in Lenovo's laptop lineup.
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