Dell Dimension 9150/XPS 400 User Manual Page 121
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Appendix 121
Clearing Forgotten Passwords
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the
Product Information Guide.
1
Follow the procedures in "Before You Begin" on page 63.
2
Locate the 3-pin password jumper (PSWD) on the system board (see page 71), and attach the
jumper plug to pins 2 and 3 to clear the password.
NOTE: When you receive your computer, the jumper plug is attached to pins 1 and 2.
3
Close the computer cover (see page 107).
4
Connect your computer and monitor to electrical outlets, and turn them on.
5
After the Microsoft
®
Windows
®
desktop appears on your computer, shut down the computer
(see page 63).
6
Turn off the monitor and disconnect it from the electrical outlet.
7
Disconnect the computer power cable from the electrical outlet, and press the power button
to ground the system board.
8
Open the computer cover (see page 68).
9
Locate the 3-pin password jumper (PSWD) on the system board (see page 71) and attach the
jumper to pins 1 and 2 to reenable the password feature.
RTCRST
3 2 1
PSWD
3 2 1
- Owner’s Manual 1
- Notes, Notices, and Cautions 2
- Contents 3
- 4 Contents 4
- 6 Contents 6
- 8 Contents 8
- Finding Information 9
- 10 Finding Information 10
- 12 Finding Information 12
- Setting Up a Printer 13
- Connecting to the Internet 14
- Playing CDs and DVDs 16
- Adjusting the Volume 17
- Copying CDs and DVDs 18
- Using Blank CDs and DVDs 19
- Helpful Tips 20
- Connecting Two Monitors 21
- VGA (blue) connector 22
- DVI (white) connector 22
- TV-OUT connector 22
- Connecting a TV 23
- Changing the Display Settings 23
- Power Management 24
- Standby Mode 25
- Hibernate Mode 25
- Power Options Properties 25
- Power Schemes Tab 26
- Advanced Tab 26
- IEEE 1394 27
- Hyper-Threading 27
- About Your RAID Configuration 28
- RAID Level 1 Configuration 29
- RAID Option ROM Utility 30
- Deleting a RAID Volume 31
- Application Accelerator 32
- Understanding Intel 35
- Viiv™ Technology (Optional) 35
- Using Intel 36
- Solving Problems 37
- Drive Problems 38
- Hard drive problems 39
- 40 Solving Problems 40
- Error Messages 41
- Media Card Reader Problems 42
- Keyboard Problems 42
- Lockups and Software Problems 43
- A solid blue screen appears 44
- Other software problems 44
- Memory Problems 45
- Mouse Problems 45
- Network Problems 46
- Power Problems 47
- Printer Problems 48
- Scanner Problems 48
- Sound and Speaker Problems 49
- Video and Monitor Problems 50
- 52 Solving Problems 52
- Troubleshooting Tools 53
- 54 Troubleshooting Tools 54
- Dell Diagnostics 56
- What Is a Driver? 57
- Identifying Drivers 58
- Reinstalling Drivers 58
- Troubleshooting Tools 59 59
- Using Microsoft 60
- Windows XP System Restore 60
- Enabling System Restore 61
- Removing Dell PC Restore 62
- Front View of the Computer 65
- Back View of the Computer 67
- Removing the Computer Cover 68
- Inside View of Your Computer 70
- System Board Components 71
- Memory Overview 72
- Installing Memory 74
- Removing Memory 76
- PCI Cards 77
- Removing a PCI Card 80
- PCI Express Cards 81
- Installing a PCI Express Card 82
- Removing a PCI Express Card 86
- Drive Panels 89
- Replacing the Drive Panel 91
- Hard Drive 92
- Removing a Hard Drive 93
- Installing a Hard Drive 94
- Adding a Second Hard Drive 95
- Installing a Floppy Drive 98
- Media Card Reader 99
- Removing and Installing Parts 100
- *Media Card Reader 100
- Not present on all computers 100
- CD/DVD Drive 102
- Removing a CD/DVD Drive 103
- Installing a CD/DVD Drive 104
- Replacing the Battery 106
- Replacing the Computer Cover 107
- Appendix 109
- 110 Appendix 110
- 112 Appendix 112
- System Setup 113
- Entering System Setup 114
- Appendix 115 115
- System Setup Options 116
- 118 Appendix 118
- Boot Sequence 119
- F2 = Setup, F12 = Boot Menu 120
- Clearing Forgotten Passwords 121
- Clearing CMOS Settings 122
- Cleaning Your Computer 122
- Floppy Drive 123
- CDs and DVDs 123
- FCC Notices (U.S. Only) 124
- Appendix 125 125
- Contacting Dell 126
- 128 Appendix 128
- 130 Appendix 130
- 132 Appendix 132
- 134 Appendix 134
- 136 Appendix 136
- 138 Appendix 138
- 140 Appendix 140
- 142 Appendix 142
- 144 Appendix 144
- Index 145 145
- 146 Index 146
- Index 147 147
- 148 Index 148
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