Latitude 5540 Owner's Manual

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Running the SupportAssist Pre-Boot System Performance Check

Steps

  1. Turn on your computer.
  2. As the computer boots, press the F12 key as the Dell logo appears.
  3. On the boot menu screen, select the Diagnostics option.
  4. Click the arrow at the bottom left corner.
    Diagnostics page is displayed.
  5. Click the arrow in the lower-right corner to go to the page listing.
    The items that are detected are listed.
  6. To run a diagnostic test on a specific device, press Esc and click Yes to stop the diagnostic test.
  7. Select the device from the left pane and click Run Tests.
  8. If there are any issues, error codes are displayed.
    Note the error code and validation number and contact Dell.

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