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32 Optimizing Performance
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Intel
®
Performance Acceleration Technology
Your Dimension™ XPS computer is equipped with the Intel
®
875P chipset, which utilizes
Performance Acceleration Technology (PAT). PAT is designed to optimize performance by
reducing the latency between DDR 400 memory and 800 front-side bus processors, and
helps provide high performance to meet the requirements for today’s demanding software.
DDR Memory and Processor Front-Side Bus
The performance of your computer’s DDR memory depends on the type of memory
installed and the clock speed of your processor. The following table indicates the memory
performance resulting from different combinations of memory and front-side bus:
For information on installing memory, see page 86. For information on the type of memory
supported by your computer, see "Memory" on page 120.
Hyper-Threading
NOTE: Hyper-Threading is supported only on computers that have 3.06-GHz (or higher)
microprocessors installed.
Hyper-Threading is an Intel
®
technology that can enhance overall computer performance
by allowing one physical microprocessor to function as two logical microprocessors, capable
of performing certain tasks simultaneously. It is recommended that you use the Microsoft
®
Windows
®
XP operating system because Windows XP is optimized to take advantage of
Hyper-Threading technology. While many programs can benefit from Hyper-Threading,
some programs have not been optimized for Hyper-Threading and may require an update
from the software manufacturer. Contact the software manufacturer for updates and
information about using Hyper-Threading with your software.
Memory type 800 front-side bus
processor
533 front-side bus
processor
DDR 400 (PC3200) performs at 400 MHz performs at 333 MHz
DDR 333 (PC2700) performs at 320 MHz performs at 333 MHz
G0550bk1.book Page 32 Thursday, July 10, 2003 1:55 PM
- Dell™ Dimension™ XPS 1
- Notes, Notices, and Cautions 2
- Abbreviations and Acronyms 2
- Contents 3
- 2 Optimizing Performance 4
- 3 Solving Problems 4
- 4 Advanced Troubleshooting 5
- 6 Appendix 7
- CAUTION: Safety Instructions 13
- (continued) 14
- When Using Your Computer 15
- Using Your Computer 19
- Opening the Drive Door 20
- Connecting Two Monitors 20
- Configuring Graphics Cards 22
- About Serial ATA Drives 23
- About Your RAID Configuration 24
- RAID Level 1 25
- Copying CDs 27
- Using Easy CD Creator Basic 28
- Helpful Tips 28
- How to Copy a CD 29
- Network Setup Wizard 30
- Turning Off Your Computer 30
- Optimizing 31
- Performance 31
- Hyper-Threading 32
- Overclocking 33
- 34 Optimizing Performance 34
- Solving Problems 35
- Finding Solutions 36
- Solving Problems 37 37
- Finding Help Information 38
- Battery Problems 38
- Drive Problems 39
- CD drive problems 40
- DVD drive problems 41
- Hard drive problems 41
- Error Messages 44
- General Problems 45
- A solid blue screen appears 46
- Other software problems 46
- Other technical problems 47
- General hardware problems 47
- IEEE 1394 Device Problems 48
- Keyboard Problems 49
- Mouse Problems 49
- Network Problems 51
- Power Problems 51
- Printer Problems 53
- Scanner Problems 54
- Sound and Speaker Problems 55
- No sound from headphones 56
- Video and Monitor Problems 57
- Advanced 59
- Troubleshooting 59
- Diagnostic Lights 60
- = yellow 61
- Dell Diagnostics 64
- Dell Diagnostics Main Menu 66
- What Is a Driver? 67
- Identifying Drivers 68
- Reinstalling Drivers 68
- Using Windows 69
- XP System Restore 69
- Incompatibilities 71
- Reinstalling Microsoft 72
- Windows 72
- Windows XP Setup 73
- Removing and 75
- Installing Parts 75
- Front View 76
- Front View (Doors Open) 77
- Back View 78
- Before You Begin 80
- Precautionary Measures 81
- Opening the Computer Cover 82
- Open the computer cover: 83
- Inside View of Your Computer 84
- System Board Components 85
- DDR Memory Overview 86
- Installing Memory 87
- PCI Cards 89
- Removing a PCI Card 92
- AGP Cards 93
- Installing an AGP Card 94
- Overview 95
- Hard Drive 96
- Installing a Hard Drive 97
- Floppy Drive 100
- Installing a Floppy Drive 101
- CD/DVD Drive 102
- Installing a CD/DVD Drive 103
- Microprocessor Airflow Shroud 105
- Microprocessor 107
- Removing the Microprocessor 109
- Front Panel 110
- Replacing the Front Panel 111
- Drive Door 112
- Replacing the Drive Door 114
- Closing the Computer Cover 117
- Appendix 119
- Specifications 120
- Standard Settings 124
- Viewing Settings 125
- System Setup Screens 126
- Boot Sequence 126
- Clearing Forgotten Passwords 127
- Contacting Dell 129
- Regulatory Notices 132
- Appendix 133 133
- What will Dell do? 134
- How will you fix my product? 135
- 136 Appendix 136
- Appendix 137 137
- Return Policy 140
- Guarantee 141
- Exclusions 141
- Making a Claim 141
- 142 Appendix 142
- and Celeron 143
- Processors Only 143
- (U.S. and Canada Only) 143
- 144 Appendix 144
- Index 145 145
- 146 Index 146
- Index 147 147
- 148 Index 148
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