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Chapter 4 Troubleshooting Use 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, or modified 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 repeating the same operation. 3. Use the following table with the verified symptom to determine which page to go to. Symptoms (Verified) Go To Power failure. (The power indicator does not go "Power System Check" on page 75. on or stay on.) POST does not complete. No beep or error "Power-On Self-Test (POST) Error Message" on codes are indicated. page 78 "Undetermined Problems" on page 90 POST detects an error and displayed messages "Error Message List" on page 79 on screen. Other symptoms (i.e. LCD display problems or "Power-On Self-Test (POST) Error Message" on others). page 78 Symptoms cannot be re-created (intermittent Use the customer-reported symptoms and go to problems). "Power-On Self-Test (POST) Error Message" on page 78 "Intermittent Problems" on page 89 "Undetermined Problems" on page 90 Chapter 4 73 System Check Procedures External Diskette Drive Check Do the following to isolate the problem to a controller, driver, or diskette. A write-enabled, diagnostic diskette is required. NOTE: Make sure that the diskette does not have more than one label attached to it. Multiple labels can cause damage to the drive or cause the drive to fail. Do the following to select the test device. 1. Boot from the diagnostics diskette and start the diagnostics program. 2. See if FDD Test is passed as the program runs to FDD Test. 3. Follow the instructions in the message window. If an error occurs with the internal diskette drive, reconnect the diskette connector on the system board. If the error still remains: 1. Reconnect the external diskette drive/DVD-ROM module. 2. Replace the external diskette drive/CD-ROM module. 3. Replace the main board. External CD-ROM Drive Check Do the following to isolate the problem to a controller, drive, or CD-ROM. Make sure that the CD-ROM does not have any label attached to it. The label can cause damage to the drive or can cause the drive