Chapter 4 165Use the following procedure as a guide for computer problems.NOTE: The diagnostic tests are intended to test only Acer products. Non-Acer products, prototype cards, ormodified options can give false errors and invalid system responses.1. Obtain the failing symptoms in as much detail as possible.2. Verify the symptoms by attempting to re-create the failure by running the diagnostic test or by repeatingthe same operation.3. Use the following table with the verified symptom to determine which page to go to.4. If any problem occurs, you can perform visual inspection before you follow this chapter’s instructions.Youcan check the following:power cords are properly connected and secured;there are no obvious shorts or opens;there are no obviously burned or heated components;all components appera normal.5. Use the following table with the verified symptom to determine which page to go to.Symptoms (Verified) Go ToPower failure. (The power indicator does notgo on or stay on.)“Power System Check” on page 167.POST does not complete. No beep or errorcodes are indicated.“Power-On Self-Test (POST) Error Message”on page 169.“Undetermined Problems” on page 182.POST detects an error and displayedmessages on screen.“Error Message List” on page 170.Other symptoms (i.e. LCD display problems orothers).“Power-On Self-Test (POST) Error Message”on page 169.Symptoms cannot be re-created (intermittentproblems).Use the customer-reported symptoms and goto “Power-On Self-Test (POST) ErrorMessage” on page 169.“Intermittent Problems” on page 181.“Undetermined Problems” on page 182.TroubleshootingChapter 4