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78 Intel Server Board SE7500CW2 Product Guide
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:
q Does the diskette drive activity light turn on briefly? If not, see “Diskette Drive Activity Light
Does Not Light” on page 80.
q 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 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.
• CD-ROM drive activity light does not light.
• There are problems with application software.
• The bootable CD-ROM is not detected.
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:
q Is 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.
q Are 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.