Viglen SX220 User Guide 124
5. Turn on the system. If the power LED does not light, see “P ower L ight Does N ot
Light” on page 125
6. If errors are encountered, power off the system and remove all add-in cards.
Monitoring POST
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 checked, its activity
light should turn on briefly.
Check for the following:
Does the diskette drive activity light turn on briefly? If not, see “Diskette Drive
Activity Light Does Not Light” on page 126.
If a second diskette drive is installed, does its activity light turn on briefly? If not,
see “Diskette Drive Activity Light Does Not Light” on page 126.
Confirming Loading of the Operating System
Once the system boots up, the operating system prompt appears on the scre en.
The prompt varies according to the operating system. If the operating system
prompt does not appear, see “Initial System Start-up” on page 121.
Specific Problems and Corrective Actions This section provides possible solutions for these specific problems:
• Power light does not light.
• T her e is no beep or an incorrect be ep patt ern.
• No char acte rs app ear on screen.
• Cha ract ers on the scr een appear distorted or incorrect.
• S ystem cooling fans do not rotate.
• Diskett e driv e activit y light does not light.
• CD-RO M drive acti vit y light does not light.
• T her e are pro blems wit h applicati on software.
• The bootable CD-ROM is not detected.