Confirming loading of the operating system, Specific problems and corrective actions, Power light does not light – Intel SE7520BD2 User Manual
Page 48: Verifying proper operation of key system lights
Troubleshooting
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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 “
If system LEDs are illuminated, see “
” for a description of the light and steps
to take to correct the problem.
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 “
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 following 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:
Did you press the power-on button?
Is the system operating normally? If so, the power LED might be defective or the cable from
the front panel to the server board might be loose.
Have you securely plugged the server AC power cord into the power supply?
Is the power supply correctly set to 110V or 235V, depending on your power output?
Will other items plugged into the same power outlet function correctly?
Some ATX power supplies have a power switch on the back of the power supply, next to the
fan. If your system has one, is it turned on?