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Dell Precision T5400 User's Guide - Page 128

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Light Pattern Problem Description Suggested Resolution A possible expansion card failure has occurred. 1 Determine if a conflict exists by removing a card (not a graphics card) and restarting the computer (see "Cards" on page 193). 2 If the problem persists, reinstall the card that you removed, remove a different card, and then restart the computer. 3 Repeat this process for each card. If the computer starts normally, troubleshoot the last card removed from the computer for resource conflicts (see "Troubleshooting Software and Hardware Problems in the Microsoft® Windows® XP and Microsoft Windows Vista™ Operating Systems" on page 143). 4 If the problem persists, contact Dell (see "Contacting Dell" on page 295). Routine system activity Watch your monitor for on- preceding video initialization. screen messages. 128 Troubleshooting Tools

Section	Page
Finding Information	11
About Your Computer	19
Front View of the Computer (Tower Orientation)	19
Back View of the Computer (Tower Orientation)	21
Back Panel Connectors (Tower Orientation)	22
Front View (Desktop Orientation)	24
Back View (Desktop Orientation)	25
Inside View	26
Inside View - Hard Drive Bay Rotated Out	27
System Board Components	28
Cable Colors	29
Changing Between Tower and Desktop Modes	30
Specifications	36
Advanced Features	45
LegacySelect Technology Control	45
Manageability	45
Alert Standard Format	45
Dell OpenManage™ IT Assistant	47
Dell OpenManage Client Instrumentation	47
Power Management	47
About RAID Configurations	49
RAID Level 0	50
RAID Level 1	51
RAID Level 5	51
Configuring Your Computer for RAID	53
Configuring Your Computer for RAID Using the Intel Matrix Storage Manager	53
Configuring Your Computer for RAID Using the Intel® RAID Option ROM Utility	61
Setting Up Your Computer	65
Installing Your Computer in an Enclosure	65
Connecting to the Internet	67
Setting Up Your Internet Connection	68
Transferring Information to a New Computer	69
Microsoft® Windows® XP	70
Microsoft Windows Vista™	73
Power Protection Devices	73
Surge Protectors	74
Line Conditioners	74
Uninterruptible Power Supplies	74
Securing Your Computer	75
Chassis Intrusion Detection	75
Removing the Chassis Intrusion Switch	75
Replacing the Chassis Intrusion Switch	76
Resetting the Chassis Intrusion Detector	76
Security Cable Lock	77
Passwords	78
About Passwords	78
Using a Primary (or System) Password	79
Using an Administrator Password	82
Disabling a Forgotten Password and Setting a New Password	84
Trusted Platform Module (TPM)	85
Enabling the TPM Feature	85
Security Management Software	86
Activating the Security Management Software	86
Using the Security Management Software	86
Computer Tracking Software	86
If Your Computer Is Lost or Stolen	87
System Setup	89
Overview	89
Entering System Setup	89
System Setup Options	89
Boot Menu	97
Option Settings	98
Selecting the Boot Device for the Current Boot	98
Changing Boot Sequence for Future Boots	99
Booting to a USB Device	99
Clearing Forgotten Passwords	101
Clearing CMOS Settings	103
Flashing the BIOS	103
Cleaning Your Computer	105
Computer, Keyboard, and Monitor	105
Floppy Drive	105
CDs and DVDs	105
Troubleshooting	107
Solving Problems	107
Battery Problems	107
Drive Problems	107
E-Mail and Internet Problems	109
Error Messages	110
IEEE 1394 Device Problems	111
Keyboard Problems	112
Lockups and Software Problems	112
Memory Problems	114
Mouse Problems	115
Network Problems	116
Power Problems	116
Printer Problems	117
Scanner Problems	118
Sound Problems	119
Troubleshooting Tools	121
Diagnostic Lights	121
Diagnostic Light Codes Before POST	121
Diagnostic Light Codes During POST	123
Beep Codes	129
Error Messages	130
Dell Diagnostics	136
When to Use the Dell Diagnostics	136
Starting the Dell Diagnostics From Your Hard Drive	137
Starting the Dell Diagnostics From the Drivers and Utilities Disc	137
Dell Diagnostics Main Menu	138
Reinstalling Software	141
Drivers	141
What Is a Driver?	141
Identifying Drivers	141
Reinstalling Drivers and Utilities	142
Troubleshooting Software and Hardware Problems in the Microsoft® Windows® XP and Microsoft Windows Vista™ Operating Systems	143
Restoring Your Operating System	144
Using Microsoft Windows System Restore	144
Using Dell™ PC Restore and Dell Factory Image Restore	146
Using the Operating System Disc	149
Adding and Replacing Parts	151
Before You Begin	151
Recommended Tools	151
Turning Off Your Computer	151
Before Working Inside Your Computer	152
Removing the Computer Cover and Front Panel	153
Removing the Computer Cover	153
Removing the Front Panel	155
Rotating the Hard Drive Carrier Out of the Computer	156
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
I/O Panel	163
I/O-Panel Components	164
Removing the I/O Panel	165
Replacing the I/O Panel	167
Power Supply	167
Power Supply DC Connector Pin Assignments	167
Removing the Power Supply	174
Replacing the Power Supply	176
Battery	176
About the Battery	176
Replacing the Battery	177
Processor	179
Removing the Processor	179
Installing the Processor	183
Memory	187
Fully Buffered DIMM (FBD) Memory Overview	187
Addressing Memory With 4-GB or Greater Configurations (32-bit Operating Systems Only)	188
Removing Memory	189
Installing Memory	190
Cards	193
Expansion Card Support	193
Installing an Expansion Card	194
Removing an Expansion Card	201
Drives	205
Tower Computer Drives	205
Desktop Computer Drives	206
Controller Card Data Cable Connectors	212
Hard Drive	212
Drive Panels	233
Floppy Drive	239
Media Card Reader	254
Optical Drive	268
System Board	281
Removing the System Board	281
Replacing the System Board	284
Getting Help	289
Obtaining Assistance	289
Technical Support and Customer Service	290
Online Services	290
AutoTech Service	291
Automated Order-Status Service	291
Problems With Your Order	291
Product Information	291
Returning Items for Warranty Repair or Credit	292
Before You Call	292
Contacting Dell	295
Appendix	297
FCC Notice (U.S. Only)	297
FCC Class B	297