Intel® Server Board SE7230NH1-E and Intel® Server Platform SR1475NH1-E User’s Guide 25
4. If the operating system normally loads from the hard disk drive, make sure there is no
diskette in drive A and no CD-ROM disk in the CD-ROM drive.
5. If the power LED does light, attempt to boot from a floppy diskette or from a CD-
ROM disk.
6. Turn on the system. If the power LED does not light, see “Power Light Does Not
Light”.

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:
1. Does the diskette drive activity light turn on briefly? If not, see “Diskette Drive
Activity Light Does Not Light”.
2. If system LEDs are illuminated, see “LED Information” 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 “No Characters Appear on Screen”.
Specific Problems and Corrective Actions
This section provides possible solutions for these specific problems:
1. Power light does not light.
2. No characters appear on screen.
3. Characters on the screen appear distorted or incorrect.
4. System cooling fans do not rotate.
5. Diskette drive activity light does not light.
6. Hard disk drive activity light does not light.
7. CD-ROM drive activity light does not light.
8. There are problems with application software.
9. The bootable CD-ROM is not detected.
Try the solutions below in the order given. If you cannot correct the problem, contact
your service representative or authorized dealer for help.