Acer AT350 F3 User Manual - Page 11
Hardware diagnostic testing
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Hardware diagnostic testing This section provides a detailed approach to identifying a hardware problem and its cause. Checking the boot-up status Caution: Before disconnecting any peripheral cables from the server, turn off the system and any peripheral devices. Failure to do so can cause permanent damage to the system and/or the peripheral device. 1. Turn off the system and all external peripheral devices. 2. Disconnect all peripheral devices from the system, except for the keyboard and the display monitor. 3. Make sure the system power cord is plugged into a properly grounded AC outlet and in the power supply module cord socket. 4. Make sure the display monitor and keyboard are correctly connected to the system. 5. Turn on the display monitor. 6. Set the display brightness and contrast controls to at least two thirds of their maximum range. Refer the documentation that came with your display monitor. 7. If the operating system normally loads from the hard drive, make sure there is no diskette in floppy drive and no disc in the optical drive. 8. If the power indicator is lit, attempt to boot from a disc. 9. Turn on the system. Verifying the condition of the storage devices As POST determines the system configuration, it tests for the presence of each mass storage device installed in the system. As each device is checked, its activity indicator should turn blue briefly. Check the activity indicators for the hard drive(s), DVD-ROM drive, and any other 5.25" device you may have installed. If any of these indicators fail to light up, refer to related problems listed in the Specific problems and corrective actions section.