Dell OptiPlex 360 (Late 2008) - Manual (Page 150)

150 Troubleshooting
Guide), no network communication is occurring. Replace the network cable.
R
E ST A R T T H E CO M P U T E R A N D L O G O N T O T H E N E T W O R K A G A I N
C
H E C K Y O U R N E T W O R K S E T T I N G S
— Contact your network administrator or the
person who set up your network to verify your network settings are correct and that the
network is functioning.
R
U N T H E
H
A R D W A R E
T
R O U B L E S H O O T E R
— See "Hardware Troubleshooter" on
page 135.
Power Problems
WARNING: Before working inside your computer, read the safety information
that shipped with your computer. For additional safety best practices information,
see the Regulatory Compliance Homepage at
www.dell.com/regulatory_compliance.
I
F T H E P O WE R L I G H T I S G RE E N A N D T H E C O M PU T E R I S N O T R ES P O N D I N G
— See
"Power Lights" on page 123.
I
F T H E P O WE R L I G H T I S B L I N K I N G G RE E N
— The computer is in standby mode.
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 WE R L I G H T I S O F F
— The computer is either turned off or is not receiving
power.
• Reseat the power cable in the power connector on the back of the computer and the
electrical outlet.
• Bypass power strips, power extension cables, and other power protection devices to
verify that the computer turns on properly.
• Ensure any power strips being used are plugged into an electrical outlet and are turned
on.
• Ensure the electrical outlet is working by testing it with another device, such as a
lamp.
• Ensure the main power cable and front panel cable are securely connected to the
system board (see "System Board Components" on page 13).
I
F T H E P O WE R L I G H T I S B L I N K I N G A MB E R
— The computer is receiving electrical
power, but an internal power problem may exist.
• Ensure the voltage selection switch is set to match the AC power at your location (if
applicable).
• Ensure all components and cables are properly installed and securely connected to the
system board (see "System Board Components" on page 13).