104 | Dell NX046 guide

5Click Save this program to disk, and then click OK. The Save In window appears.

6Click the down arrow to view the Save In menu, select Desktop, and then click Save.

The file downloads to your desktop.

7Click Close when the Download Complete window appears.

The file icon appears on your desktop and is titled the same as the downloaded BIOS update file.

8Double-click the file icon on the desktop and follow the on-screen instructions.

104

Clearing Forgotten Passwords

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Dell NX046 manual 104

Contents

Dell Precision T5400 User’s Guide August Contents Installing Your Computer in an Enclosure Transferring Information to a New Computer Trusted Platform Module TPM Security Management Software Cleaning Your Computer 103 129 130136 141 Turning Off Your Computer 193 205281 289 Returning Items for Warranty Repair or Credit Finding Information What Are You Looking For? Find It Here Drivers and Utilities Disc Quick Reference Guide At support.dell.com Service Tag and Microsoft Windows License What Are You Looking For? Dell Support Website support.dell.com Windows Help and Support Dell Supported Linux Sites Finding Information About Your Computer Front View of the Computer Tower Orientation Ieee 1394 connector Back View of the Computer Tower Orientation Cards Back Panel Connectors Tower Orientation Connector Network adapter Information on booting to a USB device Front View Desktop Orientation Back View Desktop Orientation Inside View Inside View Hard Drive Bay Rotated Out System Board Components Cable Colors Device Color Changing Between Tower and Desktop Modes Tower Orientation Desktop Orientation Spare card retainer Desktop Orientation Tower Orientation FlexBay About Your Computer Specifications System Information ProcessorMemory Expansion Desktop ModeTower Mode Ports and Connectors USB Video AudioDrives Key Combinations Power Front panel Physical Environmental About Your Computer About Your Computer Alert Standard Format LegacySelect Technology ControlManageability Alert Description Chassis intrusion alert has been cleared Dell OpenManage Client Instrumentation Power ManagementDell OpenManage IT Assistant Sleep Mode About RAID Configurations Hyperthreading and Multi-Core Technology RAID Level RAID Level RAID level Hard drive Configuring Your Computer for RAID Setting Your Computer to RAID-Enabled Mode Creating a RAID Level 0 Configuration Creating a RAID Level 1 Configuration Creating a RAID Level 5 Configuration Deleting a RAID Volume On the Delete RAID Volume Wizard screen, click Next Drive RAID About Migrating to a RAID ConfigurationMigrating to a RAID Level 0 Configuration Migrating to a RAID Level 1 Configuration Migrating to a RAID Level 5 Configuration Rebuilding a Degraded RAID Level 1 or 5 Configuration Creating a Spare Hard Drive Creating a RAID Level 0 Configuration Creating a RAID Level 1 Configuration Creating a RAID Level 5 Configuration Deleting a RAID Volume Setting Up Your Computer Installing Your Computer in an Enclosure Setting Up Your Computer Connecting to the Internet Setting Up Your Internet Connection Windows XP Transferring Information to a New Computer Windows Vista Microsoft Windows XP To prepare a new computer for the file transfer Setting Up Your Computer Setting Up Your Computer Power Protection Devices Microsoft Windows Vista Line Conditioners Uninterruptible Power SuppliesSurge Protectors Removing the Chassis Intrusion Switch Chassis Intrusion Detection Replacing the Chassis Intrusion Switch Resetting the Chassis Intrusion Detector Security Cable Lock Passwords About Passwords Using a Primary or System Password Type of Password Features Option Settings Assigning a System Password Typing Your System Password Deleting or Changing an Existing System Password Using an Administrator Password Assigning an Administrator Password Disabling a Forgotten Password and Setting a New Password Deleting or Changing an Existing Administrator Password Enabling the TPM Feature Trusted Platform Module TPM Using the Security Management Software Security Management SoftwareComputer Tracking Software Activating the Security Management Software If Your Computer Is Lost or Stolen Securing Your Computer Overview Entering System SetupSystem Setup Options Date, Service Tag, Express Service Code, and Asset Tag Off COM3 Performance Security Auto Power Time Read and U for Unread. Mark All Entries Read puts an R to Boot Menu Setup program or the Quickboot feature. Setup & Boot Option Settings Selecting the Boot Device for the Current Boot Memory Key Changing Boot Sequence for Future BootsBooting to a USB Device Floppy Drive 100 Jumper Setting Description 101 102 103 Clearing Cmos SettingsFlashing the Bios 104 Computer, Keyboard, and Monitor Floppy DriveCDs and DVDs 105 106 Solving Problems Battery ProblemsDrive Problems 107 108 Optical drive problemsProblems writing to an optical drive 109 Mail and Internet ProblemsHard drive problems Error Messages 110 Ieee 1394 Device Problems 111 112 Keyboard ProblemsLockups and Software Problems Computer does not start up Computer stops respondingProgram stops responding Program crashes repeatedly Memory Problems Other software problemsSolid blue screen appears 114 Mouse Problems 115 116 Network ProblemsPower Problems Printer Problems 117 Scanner Problems 118 Sound Problems 119 120 Diagnostic Lights Diagnostic Light Codes Before PostDiagnostic Lights Power 121 Suggested Resolution 122 123 Diagnostic Light Codes During PostLight Pattern Problem Description 124 Light Pattern Problem Description Suggested Resolution 125 126 127 128 Code Cause Beep Codes129 Error Messages 130 131 Click the Change or Remove Program icon 132 Keyboard Failure -See Keyboard Problems on 133 134 135 136 Dell DiagnosticsWhen to Use the Dell Diagnostics Starting the Dell Diagnostics From Your Hard Drive 137 Option Function Dell Diagnostics Main Menu138 139 Tab Function 140 What Is a Driver? DriversIdentifying Drivers Microsoft Windows XP Reinstalling Drivers and Utilities Using Windows Device Driver RollbackMicrosoft Windows Vista 142 Fix a Problem section, click Hardware Troubleshooter 143 Using Microsoft Windows System Restore Starting System RestoreRestoring Your Operating System 144 145 Undoing the Last System RestoreEnabling System Restore 146 Using Dell PC Restore and Dell Factory Image RestoreWindows XP Dell PC Restore 147 Windows Vista Dell Factory Image Restore 148 Using the Operating System Disc Reinstalling Windows XP or Windows VistaBefore you Begin 149 150 Before You Begin Recommended ToolsTurning Off Your Computer 151 Before Working Inside Your Computer 152 153 Removing the Computer Cover and Front PanelRemoving the Computer Cover 154 Removing the Front Panel 155 Rotating the Hard Drive Carrier Out of the Computer 156 157 Replacing the Front Panel and Computer Cover 158 Rotating the Hard-Drive Carrier Back into the Computer 159 Replacing the Front Panel 160 Replacing the Computer Cover 161 162 Panel 163 Panel Components 164 Removing the I/O Panel 165 166 Power Supply Power Supply DC Connector Pin AssignmentsReplacing the I/O Panel 167 DC Power Connectors P1 168 Pin Number Signal name 169 DC Power Connectors P2 170 171 DC Power Connector P3DC Power Connector P5 DC Power Connector P6 DC Power Connector FD5 172 DC Power Connector Bay 1 Pata DC Power Connectors Bays 1, 2, and 3 SataSignal name AWG Wire 173 Removing the Power Supply 174 175 Battery Replacing the Power SupplyAbout the Battery 176 Replacing the Battery 177 178 179 ProcessorRemoving the Processor 180 Heat-sink assembly 181 182 Installing the Processor 183 184 185 186 187 MemoryFully Buffered Dimm FBD Memory Overview Memory Installation 188 Removing Memory 189 Installing Memory 190 191 192 193 CardsExpansion Card Support Installing an Expansion Card 194 195 196 197 198 199 200 Removing an Expansion Card 201 202 203 204 205 DrivesTower Computer Drives Desktop Computer Drives 206 About the Metal Shields Present in Some Drive Configurations 207 208 General Drive Installation Guidelines 209 210 211 212 Controller Card Data Cable ConnectorsHard Drive 213 214 215 216 217 Removing an Optional Third Hard Drive Tower Computer Only 218 219 220 Installing an Optional Third Hard Drive Tower Computer Only 221 222 223 224 225 226 227 Installing an Optional Third Sata Hard Drive Desktop Only 228 229 230 231 232 233 Drive PanelsRemoving the Drive Panel 234 Removing a Drive-Panel Insert 235 Replacing a Drive-Panel Insert 236 Replacing the Drive Panel 237 238 239 Removing a Floppy Drive Tower Computer 240 241 242 Installing a Floppy Drive Tower Computer 243 244 245 Removing a Floppy Drive Desktop Computer 246 247 248 249 Installing a Floppy Drive Desktop Computer 250 251 252 253 254 Media Card ReaderRemoving a Media Card Reader Tower Computer 255 256 Installing a Media Card Reader Tower Computer 257 258 259 Removing a Media Card Reader Desktop Computer 260 261 262 263 Installing a Media Card Reader Desktop Computer 264 265 266 267 268 Optical DriveRemoving an Optical Drive Tower Computer 269 270 Installing an Optical Drive Tower Computer 271 272 273 Removing an Optical Drive Desktop Computer 274 275 276 Installing an Optical Drive Desktop Computer 277 278 279 280 281 System BoardRemoving the System Board 282 283 Replacing the System Board 284 285 286 287 288 Obtaining Assistance 289 290 Technical Support and Customer ServiceOnline Services Problems With Your Order AutoTech ServiceAutomated Order-Status Service Product Information 292 Returning Items for Warranty Repair or CreditBefore You Call 293 Diagnostics Checklist 294 Contacting Dell 295 296 297 FCC Notice U.S. OnlyFCC Class B 298 Glossary 299 300 301 Device driver See driver 302 303 304 305 306 307 Module bay See media bay 308 NIC See network adapter 309 310 311 312 Video resolution See resolution 313 314 315 316