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® R50 Series Service and Troubleshooting Guide

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Lenovo R50 manual Solving computer problems

R50 specifications

The Lenovo R50, a part of Lenovo's essential ThinkPad series, was introduced as a reliable and robust laptop designed primarily for business users and professionals. This model showcases Lenovo’s commitment to quality, performance, and ergonomics, making it a popular choice among corporate users and students alike.

One of the main features of the Lenovo R50 is its durable design. It sports a sturdy chassis that meets military-grade specifications for durability, protecting it from unexpected shocks and drops. The ThinkPad series is well-known for its spill-resistant keyboards, a feature that enhances the R50’s practical usability in dynamic work environments.

Performance-wise, the R50 is typically powered by Intel’s Pentium or early-core processors, providing sufficient power for everyday tasks such as word processing, spreadsheet management, and browsing. The device can come equipped with various memory configurations, often available with up to 2GB of RAM and either conventional hard drives or early solid-state drives, facilitating quicker system performance and improved access times.

The Lenovo R50 also emphasizes connectivity and expansion. It features multiple USB ports, a serial port, and a PC Card slot for adding functionalities. Ethernet and modem ports ensure reliable wired connections, while Wi-Fi capabilities enhance mobility.

Display quality is another appealing aspect of the R50, featuring a 15-inch screen that offers a native resolution typically of 1024x768 or higher, yielding a decent visual experience for document editing and presentations. The anti-glare coating assists in maintaining visibility under varying light conditions, an important factor for users working outdoors or in bright office spaces.

Another significant characteristic of the R50 is its renowned keyboard. Lenovo’s ThinkPad keyboards are legendary for their tactile feedback and comfort, which significantly enhances the typing experience. The keyboard also includes a TrackPoint, allowing for precise cursor control without needing to shift hands from the keyboard.

In terms of software, the Lenovo R50 usually runs on Windows operating systems, providing users with a familiar interface and access to a vast array of applications suitable for business and personal use.

Overall, the Lenovo R50 stands out for its blend of durability, performance, and user-centric features, making it a trustworthy companion for anyone seeking a reliable laptop to manage their daily tasks efficiently.