Dell Precision 620 Manuel d'utilisateur Page 52
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- Table des matières
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Noté. / 5. Basé sur avis des utilisateurs
graphics coprocessor handles video rendering. The Intel
®
Pentium
®
microprocessor, for example, includes an integrated math coprocessor.
cpi
characters per inch
CPU
central processing unit. See also microprocessor.
cursor
A marker, such as a block, an underscore, or a pointer, that represents the position at which the next keyboard or mouse action will occur.
D
DAT
digital audio tape
dB
decibel(s)
dBA
adjusted decibel(s)
DC
direct current
Dell Diagnostics
A comprehensive set of diagnostic tests for your Dell computer. To use the diagnostics, you must boot your computer from the Dell Diagnostics
Diskette. See your Diagnostics and Troubleshooting Guide for more information about using the Dell Diagnostics.
Dell Inspector
A DMI browser that allows you to view your computer system's current hardware configuration and operating system version. If your system
includes Dell-installed software, you can select this program from the Dell Accessories program folder.
device driver
A program that allows the operating system or some other program to interface correctly with a peripheral device, such as a printer. Most device
drivers are installed when the operating system is installed.
DIN
Deutsche Industrie Norm
DIP
dual in-line package. A circuit board, such as a system board or expansion card, may contain DIP switches for configuring the circuit board. DIP
switches are always toggle switches, with an ON position and an OFF position.
directory
Directories help keep related files organized on a disk in a hierarchical, "inverted tree" structure. Each disk has a "root" directory; for example, a
<C:\> prompt normally indicates that you are at the root directory of hard-disk drive C. Additional directories that branch off of the root directory are
called subdirectories. Subdirectories may contain additional directories branching off of them.
display adapter
See video adapter.
DMA
direct memory access. A DMA channel allows certain types of data transfer between RAM and a device to bypass the microprocessor.
DMI
Desktop Management Interface. DMI enables the management of your computer system's software and hardware. DMI collects information about
- Notes, Notices, and Cautions 1
- Adjusting Volume 3
- Using Audio Utilities 4
- Installing Audio Drivers 4
- Backing Up Your Files 5
- Basic Checks 5
- Look and Listen 6
- System Setup 7
- Expansion Cards 9
- Adding Memory 11
- Microprocessor Upgrades 14
- SuprFreq Utility Program 16
- Replacing the System Battery 19
- International Dialing Codes 21
- Americas Contact Numbers 22
- Europe Contact Numbers 23
- Features 30
- Before You Start Testing 30
- Advanced Testing 31
- Connecting Drives 35
- Installing SCSI Devices 42
- Troubleshooting the Monitor 45
- Troubleshooting the Keyboard 45
- Troubleshooting the Mouse 45
- Troubleshooting I/O Ports 46
- Help Overview 48
- Contacting Dell 48
- System Board Labels 68
- I/O Ports and Connectors 69
- Interrupt Assignments 74
- Memory Allocations 75
- Technical Assistance 77
- Help Tools 77
- Problems With Your Order 78
- Product Information 78
- Before You Call 79
- Before You Begin 80
- Removing the Computer Cover 80
- Replacing the Computer Cover 81
- Inside Your Computer 83
- Troubleshooting the Battery 88
- Troubleshooting Drives 90
- System Features 92
- Front Panel 95
- Back Panel 96
- Getting Help 97
- System Messages 98
- System Beep Codes 102
- Warning Messages 103
- Diagnostics Messages 103
- Diagnostic LEDs 103
- SNMP Platform Event Traps 105
- User's Guide 106
- Configuring the NIC 107
- Reinstalling the NIC Driver 107
- Installing SCSI Drivers 110
- AC Power Recovery 111
- Asset Tag 111
- Auto Power On 111
- Boot Sequence 111
- CPU Information 112
- Integrated Devices 113
- Keyboard NumLock 114
- PCI IRQ Assignment 114
- Primary Video Controller 115
- System Time 118
- ZIP Floppy Support 118
- Overview 119
- Error Messages 119
- Input Errors 119
- Program Conflicts 120
- Memory Address Conflicts 120
- Microprocessor 121
- System Information 121
- Expansion Bus 121
- Ports and Connectors 122
- Graphics and Video 122
- Back to Contents Page 125
- Using System Setup 125
- System Setup Options 125
- Entering System Setup 126
- System Setup Screen 126
- System Setup Navigation Keys 127
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