System Board (Service-Only Procedure)

97

Removing the System Board

97

Installing the System Board

99

4 Troubleshooting Your System

Safety First—For You and Your System

101

Start-Up Routine

101

Checking the Equipment

102

Troubleshooting IRQ Assignment Conflicts

102

Troubleshooting External Connections

102

Troubleshooting the Video Subsystem

103

Troubleshooting the Keyboard

103

Troubleshooting the Mouse

104

Troubleshooting Basic I/O Functions

104

Troubleshooting a Serial I/O Device

105

Troubleshooting a USB Device

105

Troubleshooting a NIC

106

Troubleshooting a Wet System

106

Troubleshooting a Damaged System

107

Troubleshooting the System Battery

108

Troubleshooting the Power Supply

108

Troubleshooting System Cooling Problems

109

Troubleshooting a Fan

109

Troubleshooting System Memory

110

Troubleshooting a Diskette Drive

112

Troubleshooting an Optical Drive

113

Troubleshooting an External SCSI Tape Drive

113

Troubleshooting a Hard Drive

115

Troubleshooting a SAS Controller Card or SAS RAID Controller

 

Daughter Card

116

6

Contents

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Image 6
Dell 1900 101, 102, 104, 105, 106, 107, 108, Troubleshooting System Cooling Problems 109, 110, 112, 113, 115, 116