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.

PowerYou 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 122.

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 module cage cable is connected correctly to the system board.

If you recently added or upgraded any hardware on your server, return the server to the original configuration.

With the exception of the power cord, disconnect all external cables, including the keyboard and mouse.

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 108.

ProcessorYour 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.

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 instructions, see your operating system’s documentation.

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