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The 4237B 3D sound system contains two controls-a space control and a center control-for adjusting the spatial effect of sound played through speakers connected to your computer. Turning up the level of the space control increases the amount of corrected directional information, restores the proper localization of the original sounds, and expands the width of the overall sound stage. Turning down the level of the space control decreases these effects. Always adjust the space control before adjusting the center control. Turning up the center control emphasizes centered sounds (typically vocals, solo instruments, bass, and kick drums in a musical recording) so that their intensity appears increased and they are brought into the center of the room. To adjust the space and center controls, follow these steps: The Windows NT 4.0 operating system installed on your Dell system has its own utilities for playing audio CDs and manipulating .wav files. Use Audio Input to control the input of devices from which you are recording .wav data. Use Audio Mixer to adjust sound levels from several different audio sources. Your system's audio drivers were installed at Dell and are operative when you receive the system-no further installation or configuration is needed. The following subsections provide instructions on reinstalling these drivers if necessary. To reinstall the audio drivers for Windows NT 4.0, follow these steps: 6-4 Dell Precision 610 Mini Tower Systems User's Guide

Section	Page
Safety Instructions	3
When Using Your Computer System	3
Ergonomic Computing Habits	4
When Working Inside Your Computer	5
Protecting Against Electrostatic Discharge	6
Preface	9
About This Guide	9
Warranty and Return Policy Information	10
Other Documents You May Need	10
Notational Conventions	11
Warnings, Cautions, and Notes	11
Typographical Conventions	11
Contents	13
Introduction	23
System Features	23
Important Note to Windows NT 4.0 Users	28
Reinstalling Windows NT 4.0	28
Creating Disk Partitions for Windows NT 4.0	29
Front Panel	29
Back Panel	30
Connecting External Devices	31
Security Cable Slot and Padlock Ring	31
Getting Help	32
Using the Software Support Utilities	33
Dell-Installed Software Support Utilities	33
Backing Up the Software Support Utilities	34
Software Support Utilities on Diskette	34
System Utilities and Services	34
Reinstalling the Dell System Utilities and Services for Windows NT 4.0	35
Removing a Service	35
Asset Tag Utility	35
Assigning and Deleting an Asset Tag Number	36
Assigning and Deleting an Owner Tag	36
Dell AutoShutdown Service	36
How AutoShutdown Works	36
If Your Operating System Locks Up	37
Dell ThermalShutdown Service	37
Auto Power On Utility	37
Installing the Auto Power On Utility	38
Microsoft Updated ATAPI Drivers	38
Reinstalling the Windows NT 4.0 Microsoft Updated ATAPI Driver	39
Removing the Windows NT 4.0 Microsoft Updated ATAPI Driver	40
Using the System Setup Program	41
Entering the System Setup Program	41
System Setup Screen	42
Using the System Setup Program	42
System Setup Options	44
System Time	45
System Date	45
Diskette Drive A and Diskette Drive B	45
Primary Drive n and Secondary Drive n	45
EIDE Devices	46
If You Have a Problem	46
Hard-Disk Drive Sequence	47
Boot Sequence	47
Diskette Drive A:	48
Hard-Disk Drive C:	48
IDE CD-ROM Reader	48
PXE	48
System Memory	48
Reserved Memory	48
CPU Speed	49
CPU ID(s)	49
Integrated Devices	49
Sound	49
Network Interface Controller	49
Mouse Port	49
Serial Port 1 and Serial Port 2	49
Parallel Port	50
Parallel Port Mode	50
IDE Drive Interface	50
Diskette Interface	51
PC Speaker	51
Video DAC Snoop	51
Primary SCSI and Secondary SCSI	51
System Security	52
System Password	52
Password Status	52
Setup Password	52
Chassis Intrusion	53
Keyboard NumLock	53
Report Keyboard Errors	53
Auto Power On	53
Wakeup On LAN	54
Power Management	54
Saving Monitor Power	54
Saving EIDE Hard-Disk Drive Power	55
ACPI	56
Thermal Power-Off	56
Asset Tag	56
System Data Options	57
Using the System Password Feature	57
Assigning a System Password	57
Using Your System Password to Secure Your System	59
Deleting or Changing an Existing System Password	60
Using the Setup Password Feature	60
Assigning a Setup Password	61
Operating With a Setup Password Enabled	61
Deleting or Changing an Existing Setup Password	62
Disabling a Forgotten Password	62
Responding to Error Messages	64
Using the ISA Configuration Utility	65
Quick Start	66
About the ICU	66
ICU Database	67
When to Run the ICU	67
Preparing to Use the ICU	68
Backing Up the ICU Diskette	68
Starting the ICU	68
Accessing Help	69
Making Selections in the ICU	69
Adding a Listed Card	70
Adding an Unlisted Card	73
Modifying a Card	75
Removing a Card	77
Viewing Resources	78
Saving the System Configuration	79
Exiting the ICU	79
Locking and Unlocking Cards	79
Locking and Unlocking All Resources	79
Locking and Unlocking Configuration Resources	80
Using the Network Interface Controller	81
Connecting to a Network	82
Network Cable Requirements	83
Configuring the NIC	83
Windows NT 4.0 NIC Driver	83
Manually Configuring a 3Com PCI 3C905b NIC	84
Setting the Network Frame Type	85
Using 3Com EtherDisk XL Version 3.01 Diskettes	85
Installing 3Com EtherDisk XL With Japanese Windows NT 4.0	85
Using the Integrated Audio Controller	87
Connecting Audio Devices	87
Speakers	88
Microphones	88
Record/Playback Devices	88
CD-ROM Drives	88
Adjusting Volume	89
Adjusting Volume in Windows NT 4.0	89
Muting the Internal Speaker	89
Adjusting 3D Sound	90
Using Audio Utilities	90
Installing Audio Drivers	90
Audio Drivers for Windows NT 4.0	90
Using the Integrated SCSI Controllers	93
SCSI Device Considerations	94
Installing SCSI Drivers	94
SCSI Drivers for Windows NT 4.0	95
Installing SCSI Drivers During Windows NT 4.0 Installation	95
Working Inside Your Computer	97
Before You Begin	97
Safety First—For You and Your Computer	97
Unpacking Your Hardware Option	98
Removing the Computer Cover	98
Replacing the Computer Cover	100
Inside Your Computer	101
Rotating the Power Supply Away From the System Board	103
Installing System Board Options	105
Expansion Cards	106
Expansion Slots	107
Installing an Expansion Card	108
Removing an Expansion Card	110
Adding Memory	110
DIMM Installation Guidelines	111
Installing a DIMM	113
Removing a DIMM	114
Pentium II Xeon Processor Upgrades	114
Adding or Replacing a Pentium II Xeon Processor	115
Replacing the System Battery	118
Installing Drives	121
Removing and Replacing the Front Bezel	122
Removing and Replacing Front-Panel Inserts	123
Connecting Drives	124
Installing a Drive in a 5.25-Inch Drive Bay	126
Installing an EIDE Hard-Disk Drive	131
EIDE Drive Addressing	131
Installing an EIDE Hard-Disk Drive in the Internal HardDisk Drive Cage	131
Partitioning and Logically Formatting Your EIDE HardDisk Drive	136
Installing SCSI Devices	136
SCSI Configuration Guidelines	136
SCSI ID Numbers	137
Device Termination	137
SCSI Cables	138
General Procedure for Installing SCSI Devices	139
Partitioning and Formatting SCSI Hard-Disk Drives	141
Technical Specifications	143
Hardware Configuration Features	149
Jumpers and Switches—A General Explanation	149
Jumpers	149
Switches	150
System Board Labels	153
I/O Ports and Connectors	154
Serial and Parallel Ports	155
Adding an Expansion Card Containing Serial or Parallel Ports	155
Serial Port Connectors	156
Parallel Port Connector	157
External SCSI Connector	158
Keyboard and Mouse Connectors	160
Keyboard Connector	160
Mouse Connector	161
Video Connector	162
NIC Connector	162
USB Connectors	163
Microphone Jack	163
Line-Out Jack	164
Line-In Jack	164
Interrupt Assignments	165
Memory Allocations	165
ISA Configuration Utility Messages	169
ICU Error Messages	169
Configuration Manager Messages	174
Maintaining the System	179
Data Preservation	179
Scheduling Backups	179
Backup Devices	179
Recovering Data	180
Cleaning System Components	180
Recommended Tools and Accessories	181
Cleaning the Computer, Monitor, and Keyboard Exteriors	181
Cleaning Drives	182
Environmental Factors	182
Temperature	182
Humidity	183
Altitude	183
Dust and Particles	183
Corrosion	184
ESD	184
Electromagnetic and Radio Frequency Interference	184
Magnetism	185
Shock and Vibration	185
Power Source Interruptions	186
Power Protection Devices	187
Surge Protectors	187
Line Conditioners	187
Uninterruptible Power Supplies	187
Regulatory Notices	189
FCC Notices (U.S. Only)	190
Class A	190
Class B	191
IC Notice (Canada Only)	191
CE Notice (European Union)	192
EN 55022 Compliance (Czech Republic Only)	193
VCCI Notice (Japan Only)	193
Class A ITE	193
Class B ITE	194
MOC Notice (South Korea Only)	194
Class A Device	194
Class B Device	195
Polish Center for Testing and Certification Notice	195
Wymagania Polskiego Centrum BadaÒ i Certyfikacji	196
Pozosta³e instrukcje bezpieczeÒstwa	196
NOM Information (Mexico Only)	197
Información para NOM (únicamente para México)	198
Warranties and Return Policy	199
Limited Three-Year Warranty (U.S. and Canada Only)	199
Coverage During Year One	199
Coverage During Years Two and Three	200
General	200
“Total Satisfaction” Return Policy (U.S. and Canada Only)	201
Glossary	203

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6-4

Dell Precision 610 Mini Tower Systems User’s Guide

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The 4237B 3D sound system contains two controls—a space control and a center

control—for adjusting the spatial effect of sound played through speakers connected

to your computer. Turning up the level of the space control increases the amount of

corrected directional information, restores the proper localization of the original

sounds, and expands the width of the overall sound stage. Turning down the level of

the space control decreases these effects. Always adjust the space control before

adjusting the center control. Turning up the center control emphasizes centered

sounds (typically vocals, solo instruments, bass, and kick drums in a musical record-

ing) so that their intensity appears increased and they are brought into the center of

the room.

To adjust the space and center controls, follow these steps:

8VLQJ±$XGLR±8WLOLWLHV±

The Windows NT 4.0 operating system installed on your Dell system has its own utili-

ties for playing audio CDs and manipulating

.wav

files. Use Audio Input to control the

input of devices from which you are recording

.wav

data. Use Audio Mixer to adjust

sound levels from several different audio sources.

,QVWDOOLQJ±$XGLR±’ULYHUV±

Your system’s audio drivers were installed at Dell and are operative when you receive

the system—no further installation or configuration is needed. The following sub-

sections provide instructions on reinstalling these drivers if necessary.

$XGLR±’ULYHUV±IRU±:LQGRZV±17±¹µ¿

To reinstall the audio drivers for Windows NT 4.0, follow these steps: