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Table 7-1., SCSI Termination Guidelines, CAUTION:

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• If you are installing an internal wide SCSI device (such as a wide SCSI hard-disk drive), you have a 68-pin internal SCSI cable as shown in Figure 7-14. One end of this cable attaches to the wide SCSI device and the other end attaches to the wide SCSI connector on your SCSI host adapter card. • If you are installing an external SCSI device, you have a shielded external cable that connects to the external SCSI connector on the SCSI host adapter card. You have a separate power cable to connect the SCSI device to an AC power source. Before installing SCSI devices in your computer, you must configure the termination on your SCSI device(s) to conform to the guidelines shown in Table 7-1. In Table 7-1, the term "last device" refers to the device attached to the end connector on the corresponding SCSI cable. For instructions on enabling and disabling termination, see the documentation for your SCSI host adapter card. CAUTION: Do not connect devices to all three connectors (internal narrow connector, internal wide connector, and external connector) on a single SCSI host adapter card. Such a configuration is a violation of the SCSI specification. You can safely connect devices to any two of these three connectors on a single SCSI host adapter card. Table 7-1. SCSI Termination Guidelines Configuration SCSI Host Adapter Card Internal Narrow SCSI Device(s) Internal Wide SCSI External SCSI Device(s) Device(s) Internal narrow and wide SCSI devices Termination enabled for upper 8 bits Termination enabled for lower 8 bits on last device Termination enabled for all 16 bits on last device Not applicable Internal wide SCSI and external narrow SCSI devices Termination enabled for upper 8 bits Not applicable Termination enabled for all 16 bits on last device Termination enabled for lower 8 bits Internal wide SCSI and external wide SCSI devices Termination disabled Not applicable Termination enabled for all 16 bits on last device Termination enabled for all 16 bits Internal narrow SCSI and external narrow SCSI devices Termination disabled Termination enabled for lower 8 bits on last device Not applicable Termination enabled for lower 8 bits Internal narrow SCSI devices only Termination enabled for lower 8 bits Termination enabled for lower 8 bits on last device Not applicable Not applicable Internal wide SCSI devices only Termination enabled for lower 8 bits Not applicable Termination enabled for all 16 bits on last device Not applicable 7-10 Dell OptiPlex GXi Low-Profile Systems Reference and Installation Guide

Section	Page
Safety Instructions	5
When Using Your Computer System	5
Ergonomic Computing Habits	5
When Working Inside Your Computer	7
Protecting Against Electrostatic Discharge	7
Preface	9
About This Guide	9
Warranty and Return Policy Information	9
Other Documents You May Need	10
Notational Conventions	10
Warnings, Cautions, and Notes	10
Typographical Conventions	10
Introduction	25
System Features	25
Using the Optional Floor Stand	27
Security Cable Slot and Padlock Ring	28
Energy Star Compliance	28
Important Note to Windows 95 Users	29
Accessing Online Documentation	29
Getting Help	30
Using the System Setup Program	31
Entering the System Setup Program	31
System Setup Screens	32
Using the System Setup Program	32
System Setup Categories	34
Time	34
Date	34
Diskette Drive A and Diskette Drive B	34
Drive A Location	34
Drives: Primary and Secondary	34
EIDE Devices	35
If You Have a Problem	35
Base Memory	36
Extended Memory	36
Reserved Memory	36
CPU Speed	36
Num Lock	36
Keyboard Errors	36
System Password	36
Password Status	37
Boot Sequence	37
Setup Password	37
Auto Power On	37
Power Management	37
Saving Monitor Power	38
Saving EIDE Hard-Disk Drive Power	38
Sound	38
NIC	38
Mouse	39
Serial Port	39
Parallel Port	39
Parallel Mode	39
Hard Disk	39
Diskette	39
USB	40
Speaker	40
ECC	40
System Data Categories	40
Using the System Password Feature	40
Assigning a System Password	41
Using Your System Password to Secure Your System	41
Deleting or Changing an Existing System Password	42
Using the Setup Password Feature	42
Assigning a Setup Password	42
Operating With a Setup Password Enabled	43
Deleting or Changing an Existing Setup Password	43
Disabling a Forgotten Password	43
Responding to Error Messages	44
Using the ISA Configuration Utility	45
Quick Start	45
About the ICU	46
ICU Database	46
When to Run the ICU	46
Preparing to Use the ICU	47
Backing Up the ICU Diskette	47
Starting the ICU	47
Accessing Help	47
Making Selections in the ICU	48
Adding a Listed Card	48
Adding an Unlisted Card	50
Modifying a Card	51
Removing a Card	52
Viewing Resources	53
Saving the System Configuration	53
Exiting From the ICU	54
Advanced Features of the ICU	54
Locking and Unlocking Cards	54
Locking and Unlocking All Resources	54
Locking and Unlocking Configuration Resources	55
Modifying the Configuration Manager	55
Using Integrated Devices	57
Video Controller	57
Audio Controller	57
NIC	57
Connecting to a Network	59
Network Cable Requirements	59
Configuring the NIC	59
Client Drivers for Novell NetWare Environments	59
Microsoft Windows 95 Client Driver	59
Microsoft Windows NT 3.5x Client Driver	60
Microsoft Windows for Workgroups Client Driver	60
Microsoft Windows 3.x Client Driver	61
MS-DOS Client Driver	61
OS/2 Client Driver	62
Server Drivers for Novell NetWare Environments	62
Updating NDIS 2.01 Drivers	63
Working Inside Your Computer	65
Before You Begin	65
Safety First—For You and Your Computer	65
Unpacking Your Hardware Option	66
Removing the Computer Cover	66
Replacing the Computer Cover	66
Removing and Replacing the Expansion-Card Cage	67
Removing the Expansion-Card Cage	67
Replacing the Expansion-Card Cage	68
Inside Your Computer	68
Jumpers	68
Switches	69
System Board Labels	72
Installing System Board Options	75
Expansion Cards	76
Expansion Slots	76
Installing an Expansion Card	77
Removing an Expansion Card	78
Adding Memory	78
Performing a Memory Upgrade	79
Installing a DIMM	80
Removing a DIMM	80
Upgrading the Microprocessor	80
Replacing the System Battery	84
Installing Drives	87
Removing and Replacing FrontPanel Inserts	87
Connecting Drives	88
Installing a Drive in the 5.25-Inch Drive Bay	89
Installing an EIDE Hard-Disk Drive	92
Partitioning and Logically Formatting Your EIDE Ha...	94
Installing SCSI Devices	95
SCSI Configuration Guidelines	95
SCSI ID Numbers	95
SCSI Cable and SCSI Termination	95
General Procedure for Installing SCSI Devices	97
Partitioning and Formatting SCSI HardDisk Drives	98
Technical Specifications	99
ISA Configuration Utility Messages	105
ICU Error Messages	105
Configuration Manager Messages	110
Regulatory Notices	115
FCC Notices (U.S. Only)	115
Class A	115
Class B	115
IC Notice (Canada Only)	116
EN 55022 Compliance (Czech Republic Only)	116
CE Notice	117
VCCI Notices (Japan Only)	117
Class 1 Notice	117
Class 2 Notice	117
Korean Regulatory Notice	118
Class A Device	118
Class B Device	118
Polish Center for Testing and Certification Notice...	118
Wymagania Polskiego Centrum BadaÒ i Certyfikacji	118
Pozosta³e instrukcje bez pieczeÒstwa	118
Warranties and Return Policy	121
Limited Three-Year Warranty (U.S. Only)	121
Coverage During Year One	121
Coverage During Years Two and Three	122
General	122
Limited Three-Year Warranty (Canada Only)	122
Coverage During Year One	123
Coverage During Years Two and Three	123
General	123
“Total Satisfaction” Return Policy (U.S. and Canad...	124

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Dell OptiPlex G

ow-Profile

ystems

Reference and Installation G

uide

•

If you are installing an internal wide SCSI device

(such as a wide SCSI hard-disk drive)

, you have a

68-pin internal SCSI cable as shown in Figure 7-14.

One end of this cable attaches to the wide SCSI

device and the other end attaches to the wide SCSI

connector on your SCSI host adapter card.

•

If you

are installing a

n external SCSI device

, you

have a shielded external cable that connects to the

external SCSI connector on the SCSI host adapter

card. You have a separate power cable to connect the

SCSI device to an AC power source.

Before installing SCSI devices in your computer, you must

configure the termination on your SCSI device(s) to con-

form to the guidelines shown in Table 7-1. In Table 7-1,

the term “last device” refers to the device attached to the

end connector on the corresponding SCSI cable. For

instructions on enabling and disabling termination, see the

documentation for your SCSI host adapter card.

CAUTION: Do

not connect

devices to all three

connectors (internal narrow connector, internal

wide connector, and external connector) on a single

SCSI host adapter card. S

uch a configuration is a

violation of the SCSI specification.

You can safely

connect devices to any two of these three connectors

on a single SCSI host adapter card.

Table 7-1.

SCSI Termination Guidelines

Configuration

SCSI Host

Adapter Card

Internal Narrow

SCSI Device(s)

Internal Wide SCSI

Device(s)

External SCSI

Device(s)

Internal narrow

and wide SCSI

devices

Termination

enabled for upper

8 bits

Termination

enabled for lower

8 bits on last device

Termination

enabled for all

16 bits on last

device

Not applicable

Internal wide

SCSI and external

narrow SCSI

devices

Termination

enabled for upper

8 bits

Not applicable

Termination

enabled for all

16 bits on last

device

Termination

enabled for lower

8 bits

Internal wide

SCSI and exter-

nal wide SCSI

devices

Termination dis-

abled

Not applicable

Termination

enabled for all

16 bits on last

device

Termination

enabled for all

16 bits

Internal narrow

SCSI and external

narrow SCSI

devices

Termination dis-

abled

Termination

enabled for lower

8 bits on last device

Not applicable

Termination

enabled for lower

8 bits

Internal narrow

SCSI devices only

Termination

enabled for lower

8 bits

Termination

enabled for lower

8 bits on last device

Not applicable

Internal wide

SCSI devices only

Termination

enabled for lower

8 bits

Not applicable

Termination

enabled for all

16 bits on last

device

Not applicable