Dell OptiPlex U719F Setup And Quick Reference Manual page 38

• Bypass power strips, power extension cables, and other power protection
devices to verify that the computer turns on properly.
• Ensure that any power strips being used are plugged into an electrical
outlet and are turned on.
• 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.
I F T H E P O W E R L I G H T I S B L U E A N D T H E C O M P U T E R I S N O T R E S P O N D I N G
• Ensure that the display is connected and powered on.
• If the display is connected and powered on, see in your Service Manual on
support.dell.com.
F T H E P O W E R L I G H T I S B L I N K I N G B L U E
I
Press a key on the keyboard, move the mouse, or press the power button to
resume normal operation.
I F T H E P O W E R L I G H T I S B L I N K I N G A M B E R
electrical power, a device might be malfunctioning or incorrectly installed.
• Remove and then reinstall all memory modules.
• Remove and then reinstall any expansion cards, including graphics cards.
I F T H E P O W E R L I G H T I S S T E A D Y A M B E R
may be malfunctioning or incorrectly installed.
• Ensure that the processor power cable is securely connected to the system
board power connector (see your Service Manual at support.dell.com).
• Ensure that the main power cable and the front panel cable are securely
connected to the system board connector.
L I M I N A T E I N T E R F E R E N C E
E
• Power, keyboard, and mouse extension cables
• Too many devices connected to the same power strip
• Multiple power strips connected to the same electrical outlet
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Troubleshooting Tips
The computer is in standby mode.
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There is a power problem, a device
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Some possible causes of interference are:
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The computer is receiving
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