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166 Jumpers and Connectors
Disabling a Forgotten Password
The system's software security features include a system password and a setup
password, which are discussed in detail in "Using the System Setup Program
and UEFI Boot Manager" on page 55. The password jumper enables these
password features or disables them and clears any password(s) currently in
use.
CAUTION: Only trained service technicians are authorized to remove the system
cover and access any of the components inside the system. Before you begin this
procedure, review the safety instructions that came with the system.
1
Turn off the system, including any attached peripherals, and disconnect
the system from the electrical outlet.
2
Open the system. See "Opening and Closing the System" on page 80.
3
Move the password jumper to the "disabled" position to clear the password.
See Table 6-1.
See
Figure 6-1
to locate the password jumper on the system board.
4
Close the system.
Item Connector Description
16 SATA_A
SATA_B
SATA_C
SATA_D
SATA_E
SATA connector A
SATA connector B
SATA connector C
SATA connector D
SATA connector E
17 RISER expansion-card riser connector
18 RISER expansion-card riser connector
19 iDRAC6 Express iDRAC6 Express card connector
20 PSWD_EN
NVRM_CLR
Password enable jumper
NVRAM clear jumper
NOTE: For the full name of an abbreviation or acronym used in this table, see the
Glossary at support.dell.com/manuals.
Table 6-2. System Board Connectors
(continued)
book.book Page 166 Wednesday, December 22, 2010 2:13 PM
- Hardware Owner’s 1
- Notes, Cautions, and Warnings 2
- Contents 3
- 4 Contents 4
- 6 Contents 6
- 8 Contents 8
- About Your System 9
- 10 About Your System 10
- LCD Panel Features 12
- Home Screen 14
- Setup Menu 14
- View Menu 15
- Hard Drive Status Indicators 16
- 18 About Your System 18
- NIC Indicator Codes 19
- Power Indicator Codes 20
- LCD Status Messages 21
- 22 About Your System 22
- 24 About Your System 24
- 26 About Your System 26
- 28 About Your System 28
- 30 About Your System 30
- 32 About Your System 32
- Removing LCD Status Messages 34
- System Messages 35
- 36 About Your System 36
- 38 About Your System 38
- 40 About Your System 40
- 42 About Your System 42
- 44 About Your System 44
- 48 About Your System 48
- 50 About Your System 50
- Warning Messages 52
- Diagnostics Messages 52
- Alert Messages 52
- 54 About Your System 54
- Choosing the System Boot Mode 55
- Responding to Error Messages 56
- System Setup Options 57
- Memory Settings Screen 59
- Processor Settings Screen 59
- SATA Settings Screen 60
- Boot Settings Screen 61
- Integrated Devices Screen 62
- PCI IRQ Assignments Screen 63
- Serial Communication Screen 63
- Power Management Screen 64
- System Security Screen 65
- Exit Screen 67
- UEFI Boot Manager Screen 68
- UEFI Boot Settings Screen 68
- System Utilities Screen 69
- Using the System Password 69
- Disabling the System Password 71
- Using the Setup Password 72
- Embedded System Management 73
- Entering the BMC Setup Module 74
- Front Bezel (Optional) 79
- Opening the System 80
- Closing the System 81
- Hard Drives 82
- Removing a Hard Drive 83
- Installing a Hard Drive 84
- Power Supplies 86
- Installing a Power Supply 87
- Expansion Cards 88
- Installing an Expansion Card 89
- Removing an Expansion Card 91
- Expansion-Card Riser 94
- Internal USB Memory Key 96
- System Board Shroud 98
- Express Card (Optional) 100
- VFlash Media (Optional) 105
- Cooling Fans 105
- Installing a Cooling Fan 107
- Optical Drive 108
- System Memory 110
- Mode-Specific Guidelines 112
- (continued) 114
- Installing Memory Modules 115
- Removing Memory Modules 117
- Processors 118
- Installing a Processor 121
- System Battery 124
- Control Panel Assembly 126
- SAS Backplane 130
- Installing the SAS Backplane 131
- Power Distribution Board 132
- System Board 135
- Installing System Components 136
- Installing the System Board 137
- Troubleshooting Your System 139
- Troubleshooting a USB Device 140
- Troubleshooting a NIC 141
- Troubleshooting a Wet System 142
- Troubleshooting a Fan 146
- Troubleshooting System Memory 146
- Troubleshooting a Hard Drive 150
- Using Online Diagnostics 157
- Using the Custom Test Options 159
- Jumpers and Connectors 161
- System Board Connectors 162
- Jumpers and Connectors 167 165
- 168 Jumpers and Connectors 166
- Getting Help 167
- 170 Getting Help 168
- Index 171 169
- Index 172 170
- Index 173 171
- Index 174 172
- Index 175 173
- Index 176 174
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