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Dell Precision T7400 User's Guide - Page 275

you have the correct part., Remove the two screws that attach the system board assembly to the back

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1 2 1 screws (2) 2 processor and card fan case 11 Remove any components that restrict access to the system board. 12 Disconnect all cables from the system board. 13 Before you remove the existing system board assembly, visually compare the replacement system board to the existing system board to ensure that you have the correct part. 14 Remove the two screws that attach the system board assembly to the back of the computer chassis. Adding and Replacing Parts 275

Section	Page
Finding Information	13
About Your Computer	21
Front View of the Computer	21
Back View of the Computer	23
Back Panel Connectors	24
Inside View	26
System Board Components	27
Specifications	29
Advanced Features	35
LegacySelect Technology Control	35
Manageability	35
Alert Standard Format	35
Dell OpenManage™ IT Assistant	37
Dell OpenManage Client Instrumentation	37
Power Management	37
About RAID Configurations	39
RAID Level 0	40
RAID Level 1	41
RAID Level 5	41
RAID Level 10	43
Configuring Your Computer for RAID	44
RAID Configuration Utility	44
Entering the RAID Configuration Utility	44
Navigating Within the Configuration Utility	44
RAID Configuration and Management	44
Exit Screen	45
Performing Configuration Tasks	45
Creating a RAID Level 0 Configuration	45
Creating a RAID Level 1 Configuration	46
Creating a Second RAID Volume	47
Viewing RAID Volume Properties	47
Synchronizing a RAID Volume (Virtual Disk)	48
Activating a RAID Volume	48
Deleting a RAID Volume	48
Replacing and Rebuilding a Degraded RAID Volume	49
Setting Up Your Computer	51
Installing Your Computer in an Enclosure	51
Connecting to the Internet	53
Setting Up Your Internet Connection	54
Transferring Information to a New Computer	55
Microsoft® Windows® XP	56
Microsoft Windows Vista™	59
Power Protection Devices	59
Surge Protectors	60
Line Conditioners	60
Uninterruptible Power Supplies	60
Securing Your Computer	61
Chassis Intrusion Detection	61
Removing the Chassis Intrusion Switch	61
Replacing the Chassis Intrusion Switch	62
Resetting the Chassis Intrusion Detector	62
Security Cable Lock	63
Passwords	64
About Passwords	64
Using a Primary (or System) Password	65
Using an Administrator Password	68
Disabling a Forgotten Password and Setting a New Password	70
Trusted Platform Module (TPM)	71
Enabling the TPM Feature	71
Security Management Software	72
Activating the Security Management Software	72
Using the Security Management Software	72
Computer Tracking Software	72
If Your Computer Is Lost or Stolen	73
System Setup	75
Overview	75
Entering System Setup	75
System Setup Options	75
Boot Menu	84
Option Settings	84
Selecting the Boot Device for the Current Boot	84
Changing Boot Sequence for Future Boots	85
Booting to a USB Device	85
Clearing Forgotten Passwords	87
Clearing CMOS Settings	89
Flashing the BIOS	89
Cleaning Your Computer	91
Computer, Keyboard, and Monitor	91
Floppy Drive	91
CDs and DVDs	91
Troubleshooting	93
Solving Problems	93
Battery Problems	93
Drive Problems	93
E-Mail and Internet Problems	95
Keyboard Problems	96
Lockups and Software Problems	96
Memory Problems	98
Mouse Problems	99
Network Problems	99
Power Problems	100
Printer Problems	101
Scanner Problems	102
Sound Problems	103
Troubleshooting Tools	105
Diagnostic Lights	105
Diagnostic Light Codes Before POST	105
Diagnostic Light Codes During POST	108
Power Lights	113
Beep Codes	115
Error Messages	116
Dell Diagnostics	123
When to Use the Dell Diagnostics	123
Starting the Dell Diagnostics From Your Hard Drive	124
Starting the Dell Diagnostics From the Drivers and Utilities Media	124
Dell Diagnostics Main Menu	125
Reinstalling Software	129
Drivers	129
What Is a Driver?	129
Identifying Drivers	129
Reinstalling Drivers and Utilities	130
Troubleshooting Software and Hardware Problems in the Microsoft® Windows® XP and Microsoft Windows Vista™ Operating Systems	131
Restoring Your Operating System	132
Using Microsoft Windows System Restore	132
Using Dell™ PC Restore and Dell Factory Image Restore	134
Using the Operating System Disc	137
Adding and Replacing Parts	139
Before You Begin	139
Recommended Tools	139
Turning Off Your Computer	139
Before Working Inside Your Computer	140
Removing the Computer Cover and Front Panel	141
Removing the Computer Cover	141
Removing the Front Panel	143
Replacing the Front Panel and Computer Cover	144
Replacing the Front Panel	144
Replacing the Computer Cover	145
I/O Panel	146
I/O-Panel Components	147
Removing the I/O Panel	148
Replacing the I/O Panel	149
Processor	150
Removing the Processor	150
Installing the Processor	154
Power Supply	160
DC Connector Pin Assignments	160
Replacing the Power Supply	169
Battery	169
About the Battery	169
Removing the Battery	170
Replacing the Battery	171
Memory	172
Fully Buffered DIMM (FBD) Memory Overview	173
Memory Installation	173
Addressing Memory With 4-GB or Greater Configurations (32-bit Operating Systems Only)	174
Removing Memory Without Memory Riser Cards	175
Memory Installation (With Optional Memory Riser Cards)	179
Installing Memory (With Optional Memory Riser Cards)	180
Removing Memory (With Optional Memory Riser Cards)	187
Cards	194
Expansion Card Support	194
Installing an Expansion Card	195
Removing an Expansion Card	202
Removing a PCI Express Graphics Card from an SLI Configuration	208
Installing PCI Express Graphics Cards in a Dual Configuration	215
Removing the Optional Graphics Riser Card	223
Replacing the Optional Graphics Riser Card	225
Drives	225
General Drive Installation Guidelines	227
Controller Card Data Cable Connectors	230
Hard Drive	230
Removing a Hard Drive (Hard Drive Bays 1-4)	230
Installing a Hard Drive (Hard Drive Bays 1-4)	235
Removing a Fifth SATA Hard Drive (Optional)	239
Installing a Fifth SATA Hard Drive (Optional)	242
Drive Panels	246
Removing a Drive-Panel Insert	247
Replacing a Drive-Panel Insert	249
Replacing the Drive Panel	249
Floppy Drive	251
Installing a Floppy Drive	254
Media Card Reader	258
Installing a Media Card Reader	261
Optical Drive	265
System Board	271
Removing the System Board	271
Replacing the System Board	277
Getting Help	281
Obtaining Assistance	281
Technical Support and Customer Service	282
Online Services	282
AutoTech Service	283
Automated Order-Status Service	283
Problems With Your Order	283
Product Information	283
Returning Items for Warranty Repair or Credit	284
Before You Call	284
Contacting Dell	287
Appendix	289
FCC Notice (U.S. Only)	289
FCC Class B	289