Symptom

Action

 

 

 

A problem occurs only

1.

Make sure that:

occasionally and is difficult to

 

• All cables and cords are connected securely to the rear of the server and

diagnose.

 

attached devices.

 

 

• When the server is turned on, air is flowing from the fan grille. If there is

 

 

no airflow, the fan is not working. This can cause the server to overheat

 

 

and shut down.

 

2.

Check the system-event log (see “Event logs” on page 103).

 

3.

See “Solving undetermined problems” on page 102.

 

 

 

Keyboard, mouse, or pointing-device problems

•Follow the suggested actions in the order in which they are listed in the Action column until the problem is solved.

•See the parts listing in the Hardware Maintenance Manual to determine which components are customer replaceable units (CRUs) and which components are field replaceable units (FRUs).

•If an action step is preceded by “(Trained service technician only),” that step must be performed only by a trained service technician.

Symptom

Action

 

 

 

All or some keys on the

1.

Make sure that:

keyboard do not work.

 

• The keyboard cable is securely connected.

 

 

• The server and the monitor are turned on.

 

2.

The keyboard is compatible with the server. Refer to the Web site at

 

 

http://www.lenovo.com/thinkserver.

 

3.

If you are using a USB keyboard and it is connected to a USB hub, disconnect

 

 

the keyboard from the hub and connect it directly to the server.

 

4.

Replace the following components one at a time, in the order shown, restarting

 

 

the server each time:

 

 

a. Keyboard

 

 

b. (Trained service technician only) System board

 

 

 

The mouse or pointing device

1.

Make sure that:

does not work.

 

• The mouse or pointing device is compatible with the server. Refer to the Web

 

 

 

 

site at http://www.lenovo.com/thinkserver.

 

 

• The mouse or pointing-device cable is securely connected to the server.

 

 

• The mouse or pointing-device device drivers are installed correctly.

 

 

• The server and the monitor are turned on.

 

 

• The mouse is enabled in the Setup Utility program.

 

2.

If you are using a USB mouse or pointing device and it is connected to a USB

 

 

hub, disconnect the mouse or pointing device from the hub and connect it

 

 

directly to the server.

 

3.

Replace the following components one at a time, in the order shown, restarting

 

 

the server each time:

 

 

a. Mouse or pointing device

 

 

b. (Trained service technician only) System board

 

 

 

Memory problems

•Follow the suggested actions in the order in which they are listed in the Action column until the problem is solved.

Chapter 7. Troubleshooting 95

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Lenovo 1048, 1046, 1047, 1045 manual Keyboard, mouse, or pointing-device problems, Memory problems
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1048, 1045, 1046, 1047 specifications

Lenovo has been a leading name in the PC industry, offering a diverse range of laptops designed to meet various computing needs. Among its popular models are the Lenovo 1047, 1046, 1045, and 1048, each catering to different segments of users with distinct features, technologies, and characteristics.

The Lenovo 1047 series is known for its robust performance and user-friendly design. It often comes equipped with the latest Intel or AMD processors, ensuring efficient handling of multitasking and heavy applications. This model typically features a Full HD display, providing users with a crisp and vibrant viewing experience, whether for work, gaming, or media consumption. The build quality is commendable, using premium materials that ensure durability while maintaining a sleek aesthetic.

Moving to the Lenovo 1046, this variant often focuses more on portability without compromising performance. Featuring a lightweight design, it is an ideal option for students and professionals who are constantly on the go. The battery life in the 1046 is typically enhanced, allowing users to work or stream content for extended periods without needing to recharge frequently. Additionally, this model may include features such as fast Wi-Fi connectivity and USB-C ports for versatile connectivity options.

The 1045 series highlights versatility, often designed for mixed usage scenarios. It generally incorporates advanced cooling technology to prevent overheating, even during intensive tasks. The display quality often balances between good resolution and energy efficiency, making it suitable for various environments. The 1045 might also include features like a fingerprint reader for added security and convenience, ensuring quick access while keeping data safe.

Lastly, the Lenovo 1048 targets budget-conscious consumers, providing essential features without breaking the bank. While it might have lower specs compared to its higher-tier counterparts, it often delivers solid performance for everyday tasks such as browsing, document editing, and streaming. The design remains appealing, with a user-friendly interface and reliable build quality. This series typically excels in value, making it an excellent choice for entry-level users and casual everyday computing needs.

Overall, Lenovo’s 1047, 1046, 1045, and 1048 models showcase the brand’s commitment to delivering a broad spectrum of laptops that cater to different user needs, merging technology with practicality for various computing environments.
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