Acer R700 manual More Problem Solving Procedures, Monitoring Post, See Power-On Self-Test Post on

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More Problem Solving Procedures

This section provides a more detailed approach to identifying a problem and locating its source.

Preparing the System for Diagnostic Testing

Caution: Turn off devices before disconnecting cables: Before disconnecting any peripheral cables from the system, turn off the system and any external peripheral devices. Failure to do so can cause permanent damage to the system and/or the peripheral devices.

1Turn off the system and all external peripheral devices. Disconnect all of them from the system, except the keyboard and video monitor.

2Make sure the system power cord is plugged into a properly grounded AC outlet.

3Make sure your video display monitor and keyboard are correctly connected to the system.

Turn on the video monitor. Set its brightness and contrast controls to at least two thirds of their maximum ranges (see the documentation supplied with your video display monitor).

4If the operating system normally loads from the hard disk drive, make sure there is no diskette in drive A. Otherwise, place a diskette containing the operating system files in drive A.

5Turn on the system. If the power LED does not light, see “Power Light Does Not Light” on page 89.

6If errors are encountered, power off the system and remove all add-in cards.

Monitoring POST

See “Power-On Self-Test (POST)” on page 51.

Verifying Proper Operation of Key System Lights

As POST determines the system configuration, it tests for the presence of each mass storage device installed in the system. As each device is