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Troubleshooting
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A horizontal line or wire is visible across the monitor screen
The monitor may use thin damper wires, located approximately 1/3 of the way
from the upper and lower screen edges, to stabilize the internal aperture grille.
These wires are most obvious when the monitor displays a white background.
The aperture grille allows more light to pass through the screen for brighter
colors and greater luminescence. The damper wire is a critical part of the overall
monitor design and does not negatively affect the monitor’s function.
Power
You press the power button, but the server does not turn on
■ If the power button LED is green, the server is turned on, but you may
not be seeing an image on the monitor. For monitor troubleshooting, see
“Monitor” on page 110.
■ If your server is plugged into a surge protector or UPS, make sure that the
surge protector or UPS is connected securely to an electrical outlet, turned
on, and working correctly. One way to check this is to plug the server
directly into a wall outlet, bypassing the surge protector or UPS.
■ Make sure that the electrical outlet is working by plugging a working
device, such as a lamp, into the outlet, then turning it on to test the outlet.
■ Open your server and make sure that the power supply cable and power
button cable are connected correctly to the system board.
When you turn on the server, it makes several short beeps
■ The short beeps indicate the server has encountered some type of error.
See “Beep codes” on page 103.
Processor
Your server does not recognize a new processor
■ Make sure that the processor is fully seated in its socket. The processor
should be recognized automatically if it is installed correctly.
■ Set the Retest Processor option in the BIOS Setup utility to Yes.
■ If you have upgraded your server from one processor to two, you may need
to reconfigure your operating system so it recognizes the additional
processor. For more information, see your operating system’s
documentation.