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Solving Problems 5-7
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. Check for the following.
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 disk drive or SCSI devices installed in the system, does
the hard disk drive activity indicator turn on briefly. If not, refer to “Hard
Disk 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,” later in
this chapter.
Specific Problems and Corrective Actions
The following paragraphs provide possible solutions for specific problems,
including:
power LED does not light
no beep or incorrect beep pattern
no characters appear on screen
characters on the screen appear distorted or incorrect
system cooling fans do not rotate
diskette drive activity LED does not light
hard disk drive activity LED does not light
CD ROM drive activity LED does not light
problems with application software
startup prompt “Press <F2> key if you want to run Setup” does not
appear on screen
bootable CD ROM is not detected
SSU does not boot.
Try the solutions in the order given. If you cannot correct the problem, contact
your service representative for assistance.