Dell Dimension L___cx Manual do Utilizador Página 21
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support.dell.com Introduction 1-5
Cleaning System Components
As it draws in air to cool the computer, the power supply fan also draws dust and
other particles into the computer. This contaminant buildup increases the system’s
internal temperature and interferes with component operation.
To minimize these conditions, Dell recommends keeping your work environment
clean. In particular, you should regularly clean your computer system. You may also
want to purchase monitor and keyboard covers to protect against dust and debris.
Recommended Tools and Accessories
Use the following tools and accessories for cleaning the computer system:
• Wrist grounding strap to reduce the effects of electrostatic discharge (ESD)
• Liquid dishwashing detergent
• Isopropyl (rubbing) alcohol
• Soft, lint-free cleaning cloth
• Nonabrasive diskette-drive head-cleaning kit that contains pretreated diskettes in ve diskette-drive head-cleaning kit that contains pretreated diskettes in
individually sealed packages
• Small vacuum cleaner with a brush attachment
Cleaning the Computer, Monitor, and Keyboard Exteriors
To clean the exterior of the computer, monitor, and keyboard, perform the following
steps:
1. Place the strap around your wrist, and attach the other end to an unpainted metal
surface on the back of the chassis.
2. Turn off the computer, monitor, and any other attached devices, and disconnect
them from their power sources.
3. Use the vacuum cleaner to remove any dust from the slots and holes on the com-
puter and between the keys on the keyboard.
4. Moisten a soft cleaning cloth with a solution of three parts water and one part liq-
uid dishwashing detergent.
Do not soak the cloth in the solution; you must not let the solution drip inside the
computer or keyboard.
NOTICE: Do not wipe the monitor screen with this solution. Doing so may
damage the antiglare coating on your monitor screen.
5. Use the moistened cloth to wipe the computer cover, the keyboard, and the exte-xte-
rior of the monitor.
- Ergonomic Computing Habits 4
- About This Guide 7
- Other Documents You May Need 8
- Notes, Notices, and Cautions 8
- Typographical Conventions 9
- Hardware Features 17
- Software Features 18
- Available Upgrades 19
- Preventive Maintenance 20
- Power Protection Devices 22
- Line Conditioners 23
- Uninterruptible Power Supply 23
- —For You and Your Computer 25
- Installation Guidelines 26
- System Board 28
- Inside Your Computer 29
- Connector or 32
- Socket Description 32
- * •indicates pin 1 33
- PCI Expansion Card Upgrades 34
- Removing Expansion Cards 37
- Adding Memory 38
- Removing a DIMM 40
- Replacing the System Battery 40
- (BATTERY) 41
- Front-Panel Insert 45
- Configuring Drives 46
- Connecting Drive Cables 46
- 5.25-Inch Drive 47
- 3.5-Inch Drives 48
- Lower 3.5-Inch Bay 51
- Replacing the Hard-Disk Drive 52
- Drive 54
- Backing Up Data Files 55
- Software 55
- Checking the Basics 56
- Indication Action 57
- Running the Dell Diagnostics 63
- Starting the Dell Diagnostics 64
- Dell Diagnostics Main Screen 65
- Using the Dell Diagnostics 67
- Versions 68
- Features 69
- Reinstalling Drivers 70
- Incompatibilities 72
- Reinstalling Windows 98 74
- Reinstalling Windows Me 75
- Reinstalling Windows 2000 77
- Expansion Cards 79
- • Incorrect drivers installed 81
- System Memory 83
- If Your Computer Gets Wet 87
- If Your Computer Is Damaged 88
- Technical Assistance 89
- Help Tools 90
- Problems With Your Order 91
- Product Information 92
- Before You Call 92
- International 95
- Country (City) 100
- Area Local Number or 100
- Microprocessor 109
- System Information 109
- Expansion Bus 110
- System Clock 110
- Ports and Connectors 111
- Controls and Indicators 111
- Environmental 112
- Physical 112
- Altitude:: 113
- Keys Action 116
- Main Screen 118
- Advanced Screen 119
- Boot Configuration Submenu 120
- Option Function 121
- IDE Configuration Submenu 122
- Primary IDE Master Submenu 123
- Video Configuration Submenu 126
- Security Screen 127
- Boot Screen 128
- Exit Screen 130
- Clearing NVRAM 132
- Diagnostic Codes 133
- POST Beep Codes 137
- System Messages 137
- FCC Notices (U.S. Only) 142
- IC Notice (Canada Only) 143
- CE Notice (European Union) 144
- Battery Disposal 144
- VCCI Notice (Japan Only) 145
- Class B ITE 146
- NOM Information (Mexico Only) 147
- Coverage During Year One 149
- General Provisions 150
- Caribbean Only) 153
- Exclusions 154
- Making a Claim 154
- Canada Only) 155
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