H E C K T H E N E T W O R K L I G H T S O N T H E B A C K O F T H E C O M P U T E R
C
see "Controls and Lights" on page 129), no network communication is occurring. Replace the network
cable.
E S T A R T T H E C O 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
R
H E C K Y O U R N E T W O R K S E T T I N G S
C
your network to verify that your network settings are correct and that the network is functioning.
U N T H E
A R D W A R E
R
H
on page 71.
Power Problems
CAUTION:
.
Before you begin any of the procedures in this section, follow the safety instructions in the Product
Information Guide.
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
I
on page 61.
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
I
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 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 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 (see
"System Board Components" on page 79).
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 all components and cables are properly installed and securely connected to the system
board (see "System Board Components" on page 79).
54
Solving Problems
— Contact your network administrator or the person who set up
— See "Resolving Software and Hardware Incompatibilities"
R O U B L E S H O O T E R
T
— The computer is in standby mode. Press a key on the
— The computer is either turned off or is not receiving power.
— The computer is receiving electrical power, but an
— If the link integrity light is off (see
— See "Diagnostic Lights"