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5-10 Solving System Problems
Verifying Proper Operation of Key System
Indicators
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
on briefly. Use the following list to isolate a possible cause:
Does the diskette drive activity indicator turn on briefly? If
not, refer to “Diskette Drive Activity Indicator Does Not
Light” in this chapter.
If a second diskette drive is installed, does its activity
indicator turn on briefly? If not, refer to “Diskette Drive
Activity Indicator Does Not Light” in this chapter.
If there is a hard drive or SCSI devices installed in the
system, does the hard drive activity indicator turn on briefly.
If not, refer to “Hard Drive Activity Indicator Does Not
Light” in this chapter.
Confirming Loading of the Operating System
Once the system boots up, the operating system prompt
appears on the screen. The prompt varies according to the
operating system. If the operating system prompt does not
appear, refer to “Problems with Application Software” found
later in this chapter.