Dell Precision T7400 Quick Reference Guide  - Page 46

Network Problems, Product Information Guide, Power Problems

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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. RESTART THE COMPUTER AND ATTEMPT TO LOG ON TO THE NETWORK AGAIN 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 U N T H E H A R D W A R E TR O U B L E S H O O T E R - See "Restoring Your Operating System" in your User's Guide. 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 "Diagnostic Lights" on page 26. 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). 46 Quick Reference Guide

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46
Quick Reference Guide
Network Problems
CAUTION:
Before you begin any of the procedures in this section, follow the
safety instructions in the
Product Information Guide
.
C
HECK
THE
NETWORK
LIGHT
ON
THE
FRONT
OF
THE
COMPUTER
—
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
HECK
THE
NETWORK
CABLE
CONNECTOR
—
Ensure that the network cable is
firmly inserted into the network connector on the back of the computer and the
network jack.
R
ESTART
THE
COMPUTER
AND
ATTEMPT
TO
LOG
ON
TO
THE
NETWORK
AGAIN
C
HECK
YOUR
NETWORK
SETTINGS
—
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
—
See "Restoring Your Operating System"
in your
User’s Guide
.
Power Problems
CAUTION:
Before you begin any of the procedures in this section, follow the
safety instructions in the
Product Information Guide
.
I
F
THE
POWER
LIGHT
IS
GREEN
AND
THE
COMPUTER
IS
NOT
RESPONDING
—
See
"Diagnostic Lights" on page 26.
I
F
THE
POWER
LIGHT
IS
BLINKING
GREEN
—
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
THE
POWER
LIGHT
IS
OFF
—
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
).