Power Problems - Dell Dimension YH242 Owner's Manual

R U N T H E H A R D W A R E T
on page 72.

Power Problems

CAUTION:
Before you perform any of the procedures in this section, follow the safety instructions in the Product
Information Guide.
I F T H E P O W E R L I G H T I S G R E E N 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
on page 68.
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 G R E E N
keyboard, move the mouse, or press the power button to resume normal operation.
F T H E P O W E R L I G H T I S O F F
I
• Reseat the power cable into 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.
• 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 (see
"System Board Components" on page 81).
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
• Remove and then reinstall the memory modules (see "Memory" on page 82).
• Remove and then reinstall any cards, including graphics cards (see "Cards" on page 86).
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
I
internal power problem may 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 (see "System Board
Components" on page 81).
E L I M I N A T E I N T E R F E R E N C 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
R O U B L E S H O O T E R — See "Resolving Software and Hardware Incompatibilities"
— The computer is in standby mode. Press a key on the
— The computer is either turned off or is not receiving power.
— A device may be malfunctioning or incorrectly installed.
— The computer is receiving electrical power, but an
— Some possible causes of interference are:
— See "Dell Diagnostics"
Solving Problems
59