DELL NT505 ユーザーズマニュアル

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Quick Reference Guide
55
Network Problems
 
CAUTION: 
Before you begin any of the procedures in this section, follow the 
safety instructions in the 
Product Information Guide
.
C
H E C K
 
T H E
 
N E T W O R K
 
L I G H T
 
O N
 
T H E
 
F R O N T
 
O F
 
T H E
 
C O M P U T E R
If the link 
integrity light is off (see "Controls and Lights" in your User’s Guide), no network 
communication is occurring. Replace the network cable.
C
H E C K
 
T H E
 
N E T W O R K
 
C A B L E
 
C O N N E C T O R
Ensure that the network cable is firmly 
inserted into the network connector on the back of the computer and the network jack.
R
E S T A R T
 
T H E
 
C O M P U T E R
 
A N D
 
A T T E M P T
 
T O
 
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 that your network settings are correct and 
that the network is functioning.
R
UN
 
THE
 H
ARDWARE
 T
ROUBLESHOOTER
Power Problems
 
CAUTION: 
Before you begin 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
See 
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
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 W E 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 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" in your User’s Guide).