Dell Precision T5400 (Late 2007): Cleaning Your Computer Computer, Keyboard, and Monitor Mouse (Non-Optical)
Cleaning Your Computer Computer, Keyboard, and Monitor Mouse (Non-Optical): Dell Precision T5400 (Late 2007)
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
- 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
- • If your enclosure has doors, ensure that they allow at least thirty percent airflow through the enclosure (front and back).
- Transferring Information to a New Computer Microsoft Windows XP
- Files and Settings Transfer Wizard (With the Operating System Disc)
- 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) 5 IEEE 1394 connector (optional)
- 12 diagnostic lights (4) Use these lights to help you troubleshoot a computer
- Back View (Tower Orientation)
- Back Panel Connectors (Tower Orientation) 5 link integrity light Green — A good connection exists between a 10-Mbps
- 10 USB 2.0 connectors (5)
- Front View (Desktop Orientation) 6 hard-drive activity light
- 12 diagnostic lights (4)
- Back View (Desktop Orientation)
- 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
- Beep Codes Code Cause Code Description Suggested Remedy
- Code Description Suggested Remedy System Messages
- Hardware Troubleshooter
- 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
- 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 HECK THE MICROSOFT OUTLOOK EXPRESS SECURITY SETTINGS — If you cannot CHECK THE TELEPHONE LINE CONNECTION CHECK THE TELEPHONE JACK CONNECT THE MODEM DIRECTLY TO THE TELEPHONE WALL JACK USE A DIFFERENT TELEPHONE LINE —
- RUN THE MODEM DIAGNOSTIC TOOL — 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 IF YOU EXPERIENCE OTHER MEMORY PROBLEMS — Mouse Problems C HECK THE MOUSE CABLE —
- RESTART THE COMPUTER — HECK THE MOUSE SETTINGS — Network Problems
- Power Problems
- Printer Problems
- Sound and Speaker Problems
- No sound from headphones Video and Monitor Problems The screen is blank
- CHECK THE MONITOR POWER LIGHT — The screen is difficult to read
- 3D image quality is poor

Cleaning Your Computer
CAUTION: Before you begin any of the procedures in this section, follow the
safety instructions in the
Product Information Guide
.
Computer, Keyboard, and Monitor
CAUTION: Before you clean your computer, disconnect the computer from the
electrical outlet. Clean your computer with a soft cloth dampened with water.
Do not use liquid or aerosol cleaners, which may contain flammable substances.
• Use a vacuum cleaner with a brush attachment to gently remove dust from
the slots and holes on your computer and from between the keys on the
keyboard.
NOTICE: Do not wipe the display screen with a soap or alcohol solution. Doing so
may damage the antiglare coating.
• To clean your monitor screen, lightly dampen a soft, clean cloth with water.
If possible, use a special screen-cleaning tissue or solution suitable for the
monitor’s antistatic coating.
• Wipe the keyboard, computer, and plastic part of the monitor with a soft
cleaning cloth moistened with water.
Do not soak the cloth or let water drip inside your computer or keyboard.
Mouse (Non-Optical)
1
Turn the retainer ring on the underside of your mouse counterclockwise,
and then remove the ball.
2
Wipe the ball with a clean, lint-free cloth.
3
Blow carefully into the ball cage to dislodge dust and lint.
4
Clean the rollers inside the ball cage with a cotton swab moistened lightly
with isopropyl alcohol.
5
Recenter the rollers in their channels, as needed. Ensure that fluff from
the swab is not left on the rollers.
6
Replace the ball and retainer ring, and then turn the retainer ring clockwise
until it clicks into place.
26 Quick Reference Guide

