Dell Precision T3400 (Late 2007): Network Problems Power Problems

Network Problems Power Problems: Dell Precision T3400 (Late 2007)

Table of contents

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

CHECK 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 HARDWARE TROUBLESHOOTER See "Hardware Troubleshooter" on page 41.

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 33.

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

).

Quick Reference Guide 55