Advanced troubleshooting, Power lights – Dell XPS 600 User Manual

Page 9

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Advanced Troubleshooting: Dell XPS 600 Service Manual

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Advanced Troubleshooting

Dell™ XPS™ 600 Service Manual

Power Lights

Diagnostic Lights

Beep Codes

System Messages

Power Lights

CAUTION:

Before you begin any of the procedures in this section, follow the safety instructions in the

Product Information Guide.

The power button light located on the front of the computer illuminates and blinks or remains solid to indicate different states:

If the power light is green and the computer is not responding, see "

Diagnostic Lights

."

If the power light is blinking green, the computer is in standby mode. Press a key on the keyboard, move the mouse, or

press the power button to resume normal operation.

If the power light is off, the computer is either turned off or is not receiving power.

Reseat the power cable into both the power connector on the back of the computer and the electrical outlet.

If the computer is plugged into a power strip, ensure that the power strip is plugged into an electrical outlet and

that the power strip is turned on. Also bypass power protection devices, power strips, and power extension

cables to verify that the computer turns on properly.

Ensure that the electrical outlet is working by testing it with another device, such as a lamp.

Ensure that the main power cable and front panel cable are securely connected to the

system board

.

If the power light is blinking amber, the computer is receiving electrical power, but an internal power problem might

exist.

Ensure that the voltage selection switch is set to match the AC power at your location (if applicable).

Ensure that the processor power cable is securely connected to the

system board

.

If the power light is steady amber, a device might be malfunctioning or incorrectly installed.

Remove and then reinstall the

memory modules

.

Remove and then reinstall any cards.

Remove and then reinstall the graphics card, if applicable.

Eliminate interference. Some possible causes of interference are:

Power, keyboard, and mouse extension cables

Too many devices on a power strip

Multiple power strips connected to the same electrical outlet

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