Solving computer problems

Message

Solution

 

 

0200: Hard disk error

The hard disk is not working. Make sure that the hard disk drive is attached

 

firmly. Run the BIOS Setup Utility; then make sure the hard disk drive is not

 

disabled in the Startup menu.

 

 

021x: Keyboard error

Make sure that there are no objects placed on the keyboard, or if you have

 

one, the external keyboard. Turn off the computer, and turn off all attached

 

devices. Turn on the computer first; then turn on the attached devices.

 

If you still see the same error code, do the following:

 

If an external keyboard is connected, do the following:

 

v Turn off the computer and disconnect the external keyboard; then turn on

 

the computer. Make sure that the built-in keyboard operates correctly. If it

 

does, have the external keyboard serviced.

 

v Make sure that the external keyboard is connected to the correct

 

connector.

 

Test the computer by using PC-Doctor.

 

v If the computer stops during the test, have the computer serviced.

0230: Shadow RAM error

The shadow RAM failed. Test your computer’s memory with PC-Doctor. If

 

you added a memory module just before turning the computer on, reinstall

 

it. Then test the memory with PC-Doctor.

 

 

0231: System RAM error

The system RAM failed. Test your computer’s memory with PC-Doctor. If

 

you added a memory module just before turning the computer on, reinstall

 

it. Then test the memory with PC-Doctor.

 

 

0232: Extended RAM

The extended RAM failed. Test your computer’s memory with PC-Doctor. If

error

you have increased memory just before turning the computer on, reinstall it.

 

Then test the memory with PC-Doctor.

 

 

0250: System battery

The backup battery, which is used to preserve the configuration information,

error

such as the date and time, while the computer is turned off, is depleted.

 

Replace the battery and run BIOS Setup Utility to verify the configuration. If

 

you still have a problem, have the computer serviced.

 

 

0251: System CMOS

The system CMOS might have been corrupted by an application program.

checksum bad

The computer uses the default settings. Run BIOS Setup Utility to

 

reconfigure the settings. If you still see the same error code, have the

 

computer serviced.

 

 

0260: System timer error

Have the computer serviced.

 

 

0270: Real time clock

Have the computer serviced.

error

 

 

 

0271: Date and time

Neither the date nor the time is set in the computer. Set the date and time,

error

using the BIOS Setup Utility.

 

 

14ThinkPad® T40 Series Service and Troubleshooting Guide

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Lenovo T40 manual Solving computer problems

T40 specifications

The Lenovo ThinkPad T40 is a highly regarded laptop that has made a significant impact in the business and personal computing markets since its release in the early 2000s. Known for its durability, performance, and practicality, the T40 is a part of the ThinkPad series, which has a storied history of meeting the demands of professionals and everyday users alike.

One of the standout features of the T40 is its robust design. The laptop features a magnesium alloy casing that provides superior protection against everyday wear and tear. This durability is complemented by its spill-resistant keyboard, which is designed to protect the internal components from accidental liquid spills, a common concern for mobile users.

At the heart of the T40 is an Intel Pentium M processor, which was built to deliver excellent performance while being energy efficient. This was particularly advantageous for users who needed to work on the go, as it allowed for better battery life compared to traditional desktop CPUs. The T40 offers a variety of processor options, ranging from the 1.3 GHz to the 1.6 GHz Pentium M processor, each delivering a good balance of speed and efficiency.

The display is another key characteristic of the T40, featuring a 14.1-inch screen with options for both 1024x768 and higher resolutions. The LCD panel provides good color reproduction and clarity, making it suitable for both office tasks and multimedia consumption. Additionally, the T40 has a built-in trackpoint and a touchpad, offering users multiple input methods for flexibility in navigation.

For connectivity, the T40 is equipped with a range of ports, including USB 2.0, Ethernet, and a PC Card slot, allowing for easy connection to various peripherals and networks. It also supports Wi-Fi, providing users with the ability to connect to wireless networks seamlessly.

Storage options for the T40 include both traditional hard drives and, in some models, solid-state drives, which offer faster data access speeds and improved reliability. The laptop supports a maximum of 2GB of RAM, which, while modest by today’s standards, was sufficient for most business applications during its time.

In summary, the Lenovo ThinkPad T40 is a remarkable combination of durability, performance, and practicality. Its well-rounded features, from its reliable processors to its sturdy build quality, have solidified its place as a respected choice among portable laptops for professionals and casual users alike. Despite being an older model, its legacy continues to be appreciated for the standards it set in mobile computing.