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Working Inside Your Computer 5-3
Disengage the plastic hooks that secure the cover to
the front of the chassis, and lift the cover away.
Figure 5-3. Removing the Computer Cover
Replacing the Computer Cover
Use the following procedure to replace the computer
cover:
1. Check all cable connections, especially those that
might have come loose during your work. Fold
cables out of the way so that they do not catch on
the computer cover. Make sure cables are not
routed over the drive cage—they will prevent the
cover from closing properly.
2. Check to see that no tools or extra parts (includ-
ing screws) are left inside the computer’s chassis.
3. Replace the cover.
From the front of the computer, hold the cover at
about a 45-degree angle as shown in Figure 5-4. Set
the bottom front of the cover on top of the plastic
“ledge” that runs along the bottom front of the chas-
sis, and fit the four hooks along the bottom of the
cover into the rectangular slots along the bottom
front of the chassis. (It may be helpful to look down
into the chassis to verify that the hooks are in place.)
Pivot the cover down toward the back and into posi-
tion. Make sure the securing buttons click into place.
NOTE: The computer should be placed fully on a
flat surface. It is difficult to align the cover if the
front of the computer is hanging over the edge of a
table.
Figure 5-4. Replacing the Computer Cover
4. If you are using a padlock to secure your system, re-
install the padlock.
securing button (2)
front of computer
ledge
hooks in slots
- OptiPlex 1
- GXi Midsize Systems 1
- Safety Instructions 5
- About This Guide 9
- Warranty and Return Policy 9
- Other Documents You May Need 10
- Notational Conventions 10
- No boot device available 11
- Contents 13
- Chapter 3 14
- Chapter 4 15
- Appendix D 18
- Introduction 25
- System Features 25
- Using the Floor Stand 27
- Energy Star Compliance 28
- Important Note to Windows 95 29
- Accessing Online 29
- • Connecting external devices 30
- • Maintaining the system 30
- • Contacting Dell 30
- 30
- Entering the System Setup 31
- System Setup Screens 32
- System Setup Categories 34
- EIDE Devices 35
- If You Have a Problem 35
- Base Memory 35
- • NONE (the default option) 36
- • 15M - 16M 36
- • ENABLED 36
- • DISABLED BY JUMPER 36
- Boot Sequence 37
- Setup Password 37
- Auto Power On 37
- Power Management 37
- Saving Monitor Power 37
- Serial Port 38
- Assigning a System Password 40
- Your System 41
- Using the Setup Password 42
- Password 43
- Responding to Error Messages 44
- Quick Start 45
- About the ICU 46
- When to Run the ICU 46
- Preparing to Use the ICU 47
- Starting the ICU 47
- Adding a Listed Card 48
- Adding an Unlisted Card 50
- Modifying a Card 51
- RUPT (IRQ) 52
- AVAILABLE 52
- RESOURCES 52
- Viewing Resources 53
- Exiting From the ICU 54
- Advanced Features of the ICU 54
- Resources 55
- Using Integrated Devices 57
- Video Controller 57
- Audio Controller 57
- 4-2 Dell OptiPlex GX 58
- Connecting to a Network 59
- Configuring the NIC 59
- Microsoft Windows NT 3.5 60
- Client Driver 60
- Microsoft Windows 3 61
- MS-DOS Client Driver 61
- Environments 62
- OS/2 Client Driver 62
- Updating NDIS 2.01 Drivers 63
- 4-8 Dell OptiPlex GX 64
- Working Inside Your Computer 65
- Before You Begin 65
- Removing the Computer Cover 66
- Replacing the Computer Cover 67
- Inside Your Computer 68
- Switches 69
- 5-6 Dell OptiPlex GX 70
- 5-8 Dell OptiPlex GX 72
- System Board Labels 74
- 5-12 Dell OptiPlex GX 76
- Removing and Replacing the 77
- 5-14 Dell OptiPlex GX 78
- Chapter 6 79
- Expansion Cards 80
- Adding Memory 82
- Performing a Memory Upgrade 83
- Installing a DIMM 84
- Removing a DIMM 84
- Upgrading the Microprocessor 85
- 6-8 Dell OptiPlex GX 86
- Replacing the System Battery 88
- BATTERY 89
- 6-12 Dell OptiPlex GX 90
- Installing Drives 91
- Removing and Replacing 91
- 7-2 Dell OptiPlex GX 92
- Connecting Drives 93
- 7-4 Dell OptiPlex GX 94
- Installing Drives 7-5 95
- EIDE Drive Addressing 96
- Hard-Disk Drive Bracket 97
- 1.6-inch drive 98
- Installing Drives 7-9 99
- Installing SCSI Devices 100
- Installing Drives 7-11 101
- 7-12 Dell OptiPlex GX 102
- Hard-Disk Drives 103
- 7-14 Dell OptiPlex GX 104
- Technical Specifications 105
- Continued) 107
- ICU Error Messages 111
- • 4 DMA channels 113
- • 7 IRQ lines 113
- • 9 memory address blocks 113
- • 20 I/O ports 113
- • Modify 114
- • You added an ISA 115
- Configuration Manager 116
- (Continued) 117
- Regulatory Notices 121
- FCC Notices (U.S. Only) 121
- IC Notice (Canada Only) 122
- EN 55022 Compliance (Czech 122
- CE Notice 122
- VCCI Notices (Japan Only) 123
- Korean Regulatory Notice 124
- Wymagania Polskiego Centrum 124
- Pozosta³e instrukcje bez 124
- Regulatory Notices C-5 125
- Warranties and Return Policy 127
- Limited Three-Year Warranty 127
- Coverage During Year One 129
- (U.S. and Canada Only) 130
- Printed in the U.S.A 140
- P/N 50577 140
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