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Lenovo 8086, 8094, 8089, 8088, 8090, 8087 manual Diagnostics using PC-Doctor for DOS

Models: 8089 8086 8087 8090 8094 8088

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Chapter 5. Diagnostics using PC-Doctor for DOS

Diagnostics are provided by the PC-Doctor program for DOS. These include a full range of diagnostic utilities to determine the operating condition of the computer’s hardware components.

You can the run diagnostics from the Rescue and Recovery™ workspace or you can create a bootable diagnostic diskette from the Rescue and Recovery workspace. Alternatively, you can download either a diskette image or a startable CD-ROM image (.iso file) from the Customer Support Web site and run diagnostics using them.

The latest version of the diagnostics program is available from http://www.lenovo.com/think/support on the World Wide Web. Type your machine type into the Use Quick path field and click Go to find the downloadable files that are specific to the computer. See “Diagnostics program download” on page 48.

Diagnostic error messages appear when a test program finds a problem with a hardware option. For the test programs to properly determine if a test Passed, Failed or Aborted, the test programs check the error-return code at test completion. See “Diagnostic error codes” on page 59.

If an installed device is not recognized by the diagnostics program, that device might be defective.

Starting PC-Doctor from the Rescue and Recovery workspace

This procedure describes how to start PC-Doctor from the Rescue and Recovery workspace.

1.If your computer is already on when you start this procedure, shut down the operating system and turn off the computer.

2.To launch the Rescue and Recovery workspace, repeatedly press the F11 key as you turn on the computer.

Note: If a user password or an administrator password has been set, the Rescue and Recovery workspace is not displayed until you type the password.

3.When the Rescue and Recovery workspace is displayed, look for ″Troubleshoot″ on the left side of the screen. Click Diagnose hardware.

Notes:

a.Additional diagnostic information is available from the Rescue and Recovery workspace, such as a diagnostic overview. Refer to the Rescue and Recovery help system for details.

b.After selecting Diagnose hardware, make sure the computer is restarted using the restart button on the Rescue and Recovery workspace. Do not use the power switch to start the reboot.

c.You can also create a set of diagnostic disks from the Rescue and Recovery workspace by clicking Create diagnostic disks from the Rescue and Recovery menu.

© Lenovo 2005, 2008. Portions © IBM Corp. 2005.

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Lenovo 8086, 8094, 8089, 8088 Diagnostics using PC-Doctor for DOS, Starting PC-Doctor from the Rescue and Recovery workspace
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8089, 8086, 8087, 8090, 8094 specifications

The Lenovo 8088, 8094, 8090, 8087, and 8086 series represent a significant portion of the historical legacy of computing, particularly in the realm of personal computers and microprocessors. Each of these models showcases unique features and technologies that contributed to the evolution of computing during their time.

Starting with the Lenovo 8088, this microprocessor was an enhancement of the earlier Intel 8086, designed primarily for use in IBM-compatible PCs. Its 16-bit processor architecture was notably capable of handling 8-bit data bus interactions, which made it more versatile for various applications. The 8088 had a maximum clock speed of 4.77 MHz, providing sufficient computational power for its time. One of the key features was its support for segmented memory, which allowed for more efficient memory management by dividing memory into segments for code, data, and stack.

The Lenovo 8094, while less commonly mentioned, often refers to IBM’s PS/2 line that utilized advanced features for the time. It supported VGA graphics, a significant improvement in visual output that opened new possibilities for graphical user interfaces. The 8094 also hosted a more sophisticated input/output system that allowed for better compatibility and connectivity with peripherals.

Moving to the Lenovo 8090, this model was part of the PS/2 portfolio, noted for its improved hardware architecture. It provided an upgraded interface for keyboard and mouse, which enhanced user interaction. With further support for high-density floppy disks and better memory access speeds, the 8090 paved the way for more efficient personal computing experiences.

The Lenovo 8087 was an auxiliary processor that brought floating-point arithmetic capabilities to the 8086 series. This coprocessor greatly expanded the computing power of the CPU by handling complex mathematical computations, which was especially useful in engineering and scientific applications. The 8087 allowed for more precise calculations than the basic integer math natively supported by earlier processors.

Finally, the Lenovo 8086, iconic in its own right, was a groundbreaking microprocessor that introduced the x86 architecture. It operated at clock speeds ranging from 5 to 10 MHz and was one of the first to support 16-bit data types fully. Its capabilities shaped software development and computer programming and established a foundation for the PC compatibles we know today.

In summary, the evolution from the Lenovo 8088 through to the 8086 helped shape modern computing paradigms by introducing features that improved performance, efficiency, and user experience, paving the way for the vast technological advancements seen in contemporary computing devices.