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:
θDoes the diskette drive activity light turn on briefly? If not, see “Diskette Drive Activity Light Does Not Light” on page 80.
θIf 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 80.
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, see “No Characters Appear on the Screen” on page 78.
Specific Problems and Corrective Actions
This section provides possible solutions for these specific problems:
•Power light does not light.
•No characters appear on screen.
•Characters on the screen appear distorted or incorrect.
•System cooling fans do not rotate.
•Diskette drive activity light does not light.
•Hard disk drive activity light does not light.
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•There are problems with application software.
•The bootable
Try the solutions in the order given. If you cannot correct the problem, contact your service representative or authorized dealer for help.
Power Light Does Not Light
Check the following:
θIs the system operating normally? If so, the power LED is probably defective or the cable from the front panel to the server board is loose.
θAre there other problems with the system? If so, check the items listed under ‘System Cooling Fans Do Not Rotate Properly.”
If all items are correct and problems persist, contact your service representative or authorized dealer for help.
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