Table of Contents
- Diagnostic Quick Test
- Advanced Diagnostic Test
- Other Resources
Diagnostic Quick Test
- Turn on your computer.
- At the Dell logo, press the F12 key several times until the One Time Boot Menu appears.
- On the boot menu screen, select the Diagnostics option (Figure 1.)
Figure 1: One Time Boot Menu
The diagnostic quick test begins (Figure 2.)
Figure 2: Diagnostic Quick Test
NOTE: The mouse and touch screen (if installed) are not active during testing.
NOTE: To run a diagnostic test on a specific device, press
Esc and then select
Advanced test on the lower left corner and then follow the steps in the
Diagnostic advanced test section.
Once the quick test completes, the results are shown.
It will state either:
- All tests passed successfully, either:
- Scan the QR code for additional help.
- Select EXIT in the lower right corner to reboot the computer.
- Select ADVANCED TEST on the lower left corner to run a specific test, follow the steps in the Diagnostic advanced test section to learn how to run a specific test.
- A message stating what hardware is not working correctly, either:
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Advanced Diagnostic Test
NOTE: The default is that all the tests are selected.
- When you want to run a specific test, select to clear the Select all check box and then select the tests you want to run. (Figure 3.)
Figure 3: Advanced Test Screen
NOTE: The hardware test options may vary depending on the hardware installed on your Dell computer.
NOTE: To run a thorough test on the hardware, select to check the Thorough mode box.
- Select RUN TEST.
NOTE: On Dell laptops, user response is required during the LCD test.
Once the test completes, the results are shown.
It will state either:
- All tests passed successfully, either:
- Scan the QR code for additional help.
- Select EXIT in the lower right corner to reboot the computer.
- Select QUICK TEST on the lower left corner.
- A message stating what hardware is not working correctly, either:
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Other Resources:
The Preboot Diagnostic tool also provides information as outlined below:
Configuration
NOTE: To access the Configuration tab, select SYSTEM INFO from the options on the left.
Figure 4: Configuration Tab
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Health
NOTE: To access the Health tab, select SYSTEM INFO from the options on the left.
Figure 5: Health Tab
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Firmware
NOTE: To access the Firmware tab, select SYSTEM INFO from the options on the left.
Figure 6: Firmware Tab
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Logs of Previous Diagnostics Tests
NOTE: To access the logs of the previous diagnostics tests, select LOGS from the options on the left.
Figure 7: Diagnostics Logs Tab
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How to Run a Preboot Diagnostics on a Dell Computer
Watch this video to learn how to use integrated preboot diagnostics to identify hardware issues on your Dell computer.
Duration: 01:34 (mm:ss)
When available, closed caption (subtitles) language settings can be chosen using the Settings or CC icon on this video player.