Intel
®
 Server Board S5000PSL 57
Hardware Diagnostic Testing
This section provides a more detailed approach to identifying a hardware problem and 
locating its source.
Caution: Turn off devices before disconnecting cables: Before disconnecting any peripheral cables 
from the system, turn off the system and any external peripheral devices. Failure to do so 
can cause permanent damage to the system and/or the peripheral devices.
1. Turn off the system and all external peripheral devices. Disconnect each device 
from the system, except for the keyboard and the video monitor.
2. Make sure the system power cord is plugged into a properly grounded AC outlet.
3. Make sure your video display monitor and keyboard are correctly connected to the 
system. Turn on the video monitor. Set its brightness and contrast controls to at 
least two thirds of their maximum ranges (see the documentation supplied with 
your video display monitor).
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” on page 58.
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 “CD-ROM Drive or 
DVD-ROM Drive Activity Light Does Not Light” on page 60.
• If system LEDs are illuminated, see “Intel® Light-Guided Diagnostics” on page 9 
for a description of the lights.
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”.