Lenovo ThinkCentre A70, Hardware Maintenance Manual

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1. Make sure your computer is turned off.
2. Repeatedly press and release the F12 key when turning on the computer. When the Startup Device
Menu opens, release the F12 key.
3. Insert the diagnostic disc into the optical drive.
4. Select the optical drive with the diagnostic disc as the startup device and press Enter. The diagnostic
program opens.
5. Follow the instructions on the screen to run the desired diagnostic test. For additional help, press
the F1 key.
6. Remove the diagnostic disc from the optical drive after completing the diagnostic test.
Navigating through the diagnostic programs
Use the cursor movement keys to navigate within the menus.
• The Enter key is used to select a menu item.
• The Esc key is used to back up to the previous menu.
• For online help, select F1.
Running tests
There are four ways to run the diagnostic tests.
• Using 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 Run Quick Test does and takes longer to
complete.
• Press F5 to automatically run all selected tests in all categories.
• o From within a test category, press Ctrl-Enter to automatically run only the selected tests in that category.
• o Using 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 38.
To select one or more tests, use the following procedure.
1. Open the corresponding test category.
2. Using the cursor movement keys, highlight the desired test.
3. Press the space bar. A selected test is marked by >> . Pressing the space bar again de-selects a test
and removes the >>.
4. Repeat steps 2 and 3 above to select all desired tests.
Test results
Diagnostics test results produce the following error code format:
Function Code
Failure Type DeviceID Date
ChkDigits
Text
• Function Code:
Represents the feature or function within the computer.
Chapter 5
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Diagnostic programs
37