Dell Precision T7400: RESTART THE COMPUTER — C HECK THE MOUSE SETTINGS — Network Problems
RESTART THE COMPUTER — C HECK THE MOUSE SETTINGS — Network Problems: Dell Precision T7400
Table of contents
- Notes, Notices, and Cautions
- Contents
- Finding Information What Are You Looking For? Find It Here
- What Are You Looking For? Find It Here
- What Are You Looking For? Find It Here
- What Are You Looking For? Find It Here • How to reinstall my operating system
- What Are You Looking For? Find It Here Setting Up Your Computer Changing Between Tower and Desktop Orientations Switching From Tower to Desktop Orientation
- Switching From Desktop to Tower Orientation Installing Your Computer in an Enclosure
- • Leave 10.2 cm (4 in) minimum clearance on all vented sides of the computer to permit the airflow required for proper ventilation.
- • Do not install your computer in an enclosure that does not allow airflow.
- Transferring Information to a New Computer Microsoft Windows XP
- Files and Settings Transfer Wizard (With the Operating System Disc) PREPARE THE DESTINATION COMPUTER FOR THE FILE TRANSFER — COPY DATA FROM THE SOURCE COMPUTER —
- TRANSFER DATA TO THE DESTINATION COMPUTER — Files and Settings Transfer Wizard (Without the Operating System Disc) CREATE A WIZARD DISK — COPY DATA FROM THE SOURCE COMPUTER —
- TRANSFER DATA TO THE DESTINATION COMPUTER — Microsoft Windows Vista Power Protection Devices
- Surge Protectors Line Conditioners Uninterruptible Power Supplies
- About Your Computer Front View (Tower Orientation) 1–3 5.25-inch drive bays
- 13 network link light The network link light is on when a good connection exists
- Back View (Tower Orientation)
- Back Panel Connectors 6 link integrity light Green — A good connection exists between a 10-Mbps
- 11 serial connectors (2)
- Cleaning Your Computer Computer, Keyboard, and Monitor Mouse (Non-Optical)
- Floppy Drive CDs and DVDs Troubleshooting Tools Power Lights
- • If the power light is off, the computer is either turned off or is not receiving power.
- Diagnostic Lights Diagnostic Light Codes During POST Light Pattern Problem Description Suggested Resolution
- Light Pattern Problem Description Suggested Resolution
- Light Pattern Problem Description Suggested Resolution
- Light Pattern Problem Description Suggested Resolution
- Beep Codes Code Cause Code Description Suggested Remedy
- Code Description Suggested Remedy System Messages
- Hardware Troubleshooter Windows XP:
- Windows Vista: Dell Diagnostics When to Use the Dell Diagnostics Starting the Dell Diagnostics From Your Hard Drive
- Starting the Dell Diagnostics From the Drivers and Utilities Disc
- Dell Diagnostics Main Menu Option Function
- Tab Function Troubleshooting
- Battery Problems Drive Problems
- Optical Drive Problems Problems Writing to an Optical Drive Hard Drive Problems
- E-Mail, Modem, and Internet Problems RUN THE MODEM DIAGNOSTIC TOOL —
- VERIFY THAT THE MODEM IS COMMUNICATING WITH WINDOWS — Error Messages
- IEEE 1394 Device Problems
- Keyboard Problems Lockups and Software Problems The computer does not start up The computer stops responding A program stops responding
- A program crashes repeatedly A program is designed for an earlier Windows operating system A solid blue screen appears Other software problems
- Memory Problems IF YOU EXPERIENCE OTHER MEMORY PROBLEMS — Mouse Problems C HECK THE MOUSE CABLE —
- RESTART THE COMPUTER — C HECK THE MOUSE SETTINGS — Network Problems
- Power Problems
- Printer Problems Scanner Problems
- Sound and Speaker Problems
- Video and Monitor Problems
- The screen is difficult to read
- 3D image quality is poor Only part of the screen is readable

RESTART THE COMPUTER —
1
Simultaneously press <Ctrl><Esc> to display the
Start
menu.
2
Press <u>,
press the up- and down-arrow keys
to highlight
Shut down
or
Turn Off
,
and then press <Enter>.
3
After the computer turns off, reconnect the mouse cable as shown on the setup diagram.
4
Turn on the computer.
TEST THE MOUSE — Connect a properly working mouse to the computer, and then
try using the mouse.
C
HECK THE MOUSE SETTINGS —
Windows XP:
1
Click
Start
→
Control Panel
→
Mouse
.
2
Adjust the settings as needed.
Windows Vista:
1
Click
Start
→
Control Panel
→
Hardware and Sound
→
Mouse
.
2
Adjust the settings as needed.
REINSTALL THE MOUSE DRIVER — See "Drivers" in your User’s Guide.
R
UN THE HARDWARE TROUBLESHOOTER — See "Restoring Your Operating System"
in your User’s 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
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 "Restoring Your Operating System"
in your User’s Guide.
Quick Reference Guide 45

