Dell Precision T7400: Windows Vista: Dell Diagnostics When to Use the Dell Diagnostics Starting the Dell Diagnostics From Your Hard Drive
Windows Vista: Dell Diagnostics When to Use the Dell Diagnostics Starting the Dell Diagnostics From Your Hard Drive: 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

Windows Vista:
1
Click the Windows Vista start button
,
and click
Help and Support.
2
Ty p e
hardware troubleshooter
in the search field and press
<Enter> to start the search.
3
In the search results, select the option that best describes the problem and
follow the remaining troubleshooting steps.
Dell Diagnostics
CAUTION: Before you begin any of the procedures in this section, follow the
safety instructions in the
Product Information Guide
.
When to Use the Dell Diagnostics
If you experience a problem with your computer, perform the checks in "Lockups
and Software Problems" (see "Troubleshooting" in your User’s Guide) and run
the Dell Diagnostics before you contact Dell for assistance.
You can run the Dell Diagnostics from your hard drive or from the Drivers and
Utilities disc.
See "System Setup" in your User’s Guide to review your computer’s configuration
information, and ensure that the device that you want to test displays in the
system setup program and is active.
NOTE: The Dell Diagnostics works only on Dell computers.
NOTE: Print the following procedures before you run the Dell diagnostics.
Starting the Dell Diagnostics From Your Hard Drive
The Dell Diagnostics is located on a separate diagnostic utility partition on
your hard drive.
NOTE: If your computer cannot display a screen image, see "Contacting Dell" in
your User’s Guide.
1
Turn on (or restart) your computer.
2
When the DELL logo appears, press <F12> immediately.
NOTE: Keyboard failure may result when a key is held down for extended
periods of time. To avoid possible keyboard failure, press and release <F12> in
even intervals to open the Boot Device Menu.
Quick Reference Guide 33

