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Dell OptiPlex GXi Service Manual (.pdf) - Page 126

System Board Components, The sub s that follow contain procedures for removing sys

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System Board Components The subsections that follow Figure 6-15 contain procedures for removing system board components. video connector battery socket (MONITOR) (BATTERY) line-in jack (LINE-IN) NIC daughterboard connector (NETWORK) USB connectors keyboard/mouse (USB) connectors (stacked) (KYBD/MOUSE) parallel/serial port connectors (stacked) (PARALLEL/SERIAL) line-out jack (LINE-OUT) microphone jack (MIC) system board jumpers microprocessor fan connector (FAN) microprocessor socket (MICROPROCESSOR) cache-memory card connector (CACHE) DIMM sockets (4) main power input connector (POWER1) riser board connector (RISER) front of computer primary EIDE connector (IDE1) CD-ROM interface secondary EIDE connector connector (CD_IN) (IDE2) Figure 6-15. System Board Components 3.3-V power input connector (POWER2) diskette/tape drive interface connector (DSKT) control-panel connector (PANEL) 6-16 Dell OptiPlex GXi Systems Service Manual

Section	Page
Title Page	1
Table of Contents	5
System Overview	19
System Features	20
Advanced Expansion Subsystem	25
Low-Profile Computer’s Expansion-Card Slots	25
Midsize Computer’s Expansion-Card Slots	26
Mini Tower Computer’s Expansion-Card Slots	27
Hard-Disk Drive Options	28
Low-Profile Computers	28
Midsize Computers	28
Mini Tower Computers	28
Enhanced Dual-Interface EIDE Subsystem	28
Built-In Video Controller	28
Built-In Audio Controller	29
Built-In NIC	29
Floor Stand	30
Computer Service	30
System Power Supply	30
Pin Assignments for the DC Power Connectors	32
DC Power Distribution	33
System Board	38
Main Memory	39
System Board Jumpers	39
Interrupt Assignments	41
DMA Channel Assignments	42
Technical Specifications	43
Basic Troubleshooting	49
Initial User Contact	49
External Visual Inspection	50
Observing the Boot Routine	51
Internal Visual Inspection	52
Eliminating Resource Conflicts	54
Running the Diskette-Based Diagnostics	54
Getting Help	54
Beep Codes and Error Messages	55
POST Beep Codes	55
System Error Messages	58
Removing and Replacing Parts on the Low-Profile Ch...	65
Recommended Tools	65
Precautionary Measures	66
Computer Cover	67
Eject, Power, and Reset Buttons	68
Front-Panel Inserts	69
Control Panel	70
Drives	71
3.5-Inch Diskette Drive Assembly	72
5.25-Inch Drive Assembly	73
Hard-Disk Drive Assembly	74
System Power Supply	75
System Board Components	76
Expansion Cards	77
Expansion-Card Cage	77
Expansion Card	78
Riser Board	79
DIMMs	80
Cache Memory Card	81
NIC Daughter Board	82
Microprocessor/Heat Sink Assembly	83
System Battery	85
System Board	86
Removing and Replacing Parts on the Midsize Chassi...	87
Recommended Tools	87
Precautionary Measures	88
Floor Stand	89
Computer Cover	90
Eject, Power, and Reset Buttons	91
Front-Panel Inserts	92
Control Panel	93
Drives	94
Externally Accessible Drive Assemblies	95
Hard-Disk Drive Bracket	97
Hard-Disk Drive	98
System Power Supply	99
System Board Components	100
Expansion Cards	101
Expansion-Card Cage	101
Expansion Card	102
Riser Board	103
DIMMs	104
Cache Memory Card	105
NIC Daughter Board	106
Microprocessor/Heat Sink Assembly	107
System Battery	109
System Board	110
Removing and Replacing Parts on the Mini Tower Cha...	111
Recommended Tools	111
Precautionary Measures	112
Computer Cover	113
Front Bezel	114
Eject, Power, and Reset Buttons	115
Front-Panel Inserts	116
Control Panel	118
Drives	119
Externally Accessible Drive Assemblies	120
Hard-Disk Drive Bracket	123
Hard-Disk Drive	124
System Power Supply	125
System Board Components	126
Expansion Cards	127
Expansion-Card Cage	127
Expansion Card	128
Riser Board	129
DIMMs	130
Cache Memory Card	131
NIC Daughter Board	132
Microprocessor/Heat Sink Assembly	133
System Battery	135
System Board	136
System Setup Program	137