Dell Precision T3400: Light Pattern Problem Description Suggested Resolution
Light Pattern Problem Description Suggested Resolution: Dell Precision T3400
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
- What Are You Looking For? Find It Here
- What Are You Looking For? Find It Here
- About Your Computer Front View (Tower Orientation) 4 lower 3.5-inch drive bay
- 9 power button Press to turn on the computer.
- 14 network link light The network link light is on when a good connection
- Back View (Tower Orientation)
- 4 card slots Access connectors for any installed PCI or PCI Express Front View (Desktop Orientation) 4 hard drive activity light
- 7 power button Press to turn on the computer.
- 12 network link light The network link light is on when a good connection
- Back View (Desktop Orientation)
- Back Panel Connectors
- 8 Rear Dual USB 2.0 connectors (2)
- 11 keyboard connector 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 Media) 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 Media) 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 (UPS)
- Cleaning Your Computer Computer, Keyboard, and Monitor Mouse (Non-Optical)
- Floppy Drive CDs and DVDs Troubleshooting Tools Power Lights
- • Eliminate interference. Some possible causes of interference are:
- 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
- Light Pattern Problem Description Suggested Resolution
- Code Description Suggested Remedy
- Code Description Suggested Remedy System Messages
- 40 Quick Reference Guide
- 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 USE A DIFFERENT TELEPHONE LINE — RUN THE MODEM DIAGNOSTIC TOOL — VERIFY THAT THE MODEM IS COMMUNICATING WITH WINDOWS —
- ENSURE THAT YOU ARE CONNECTED TO THE INTERNET — Ensure that you have 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 BACK UP YOUR FILES IMMEDIATELY Memory Problems F YOU RECEIVE AN INSUFFICIENT MEMORY MESSAGE — 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 blank
- The screen is difficult to read 3D image quality is poor Only part of the screen is readable

Light Pattern Problem Description Suggested Resolution
Another failure has
• Ensure that all hard drive and
occurred.
CD/DVD drive cables are properly
connected to the system board (see
"System Board Components" in your
User’s Guide
).
• If there is an error message on the
screen identifying a problem with a
device (such as the floppy drive or
hard drive), check the device to make
sure it is functioning properly.
• If the operating system is attempting
to boot from a device (such as the
floppy drive or CD/DVD drive), check
system setup (see "System Setup" in
your
User’s Guide
) to ensure the boot
sequence is correct for the devices
installed on your computer.
• If the problem persists, contact Dell
(see "Contacting Dell" in your
User’s
Guide
).
Beep Codes
Your computer may emit a series of beeps during start up. The series of beeps
is called a beep code and can be used to help identify a problem with your
computer.
If your computer emits a series of beeps during start-up:
1
Write down the beep code.
2
Run the Dell Diagnostics to identify the cause (see "Dell Diagnostics" on
page 41).
Code Cause
2 short, 1 long BIOS checksum error
1 long, 3 short, 2 short Memory error
1 short F12 key pressed
Quick Reference Guide 37

