Starting PC-Doctor from a diagnostic diskette or CD-ROM

Note: If your computer has no internal diskette drive, an external USB diskette drive is required when using the diagnostic diskette.

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

2.Insert the diskette or CD-ROM in the appropriate drive.

3.Turn on the computer.

Note: If the PC-Doctor program fails to start, make sure that the startup device sequence is configured to allow startup from the diskette or CD-ROM drive. See “Selecting a startup device” on page 56.

Diagnostics program download

If you have access to the internet, you can download a diskette image or a startable CD-ROM image (.iso file) of the diagnostics.

To download the latest diagnostics program from the WWW, do the following:

vGo to http://www.lenovo.com/think/support.

vType the machine type in the ″Use Quick Path″ field and click Go.

vClick Downloads and drivers and scroll down to locate the Enhanced diagnostics.

Navigating through the diagnostics programs

Use the cursor movement keys to navigate within the menus.

vThe Enter key is used to select a menu item.

vThe Esc key is used to back up to the previous menu.

vFor online help select F1.

Running diagnostics tests

There are four ways to run the diagnostic tests.

vUsing the cursor movement keys, highlight Run Normal Test or Run Quick Test from the Diagnostics menu and then press Enter.

This automatically runs a pre-defined group of tests from each test category. Run Normal Test runs a more extensive set of tests than does Run Quick Test and takes longer to complete.

vPress F5 to automatically run all selected tests in all categories. See “Test selection” on page 49.

vFrom within a test category, press Ctrl-Enterto automatically run only the selected tests in that category. See “Test selection” on page 49.

vUsing the cursor movement keys, highlight a single test within a test category, and then press Enter. This runs only that test.

Press Esc at any time to stop the testing process.

Test results (N/A, PASSED, FAILED, ABORTED) are displayed in the field beside the test description and in the test log. See “Viewing the test log” on page 52.

48Hardware Maintenance Manual

Page 53 Page 55
Page 54
Image 54
Lenovo 8094, 8089, 8088, 8090, 8087 Starting PC-Doctor from a diagnostic diskette or CD-ROM, Diagnostics program download
Page 53 Page 55

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.
Top Page Image Contents