4 Troubleshooting Your System . . . . . . . . 159

Safety First—For You and Your System

159

Start-Up Routine

159

Checking the Equipment

160

Troubleshooting External Connections

160

Troubleshooting the Video Subsystem

160

Troubleshooting the Keyboard

161

Troubleshooting the Mouse

163

Troubleshooting Serial I/O Problems

164

Troubleshooting a Serial I/O Device

165

Troubleshooting a USB Device

165

Troubleshooting a NIC

167

Troubleshooting a Wet System

168

Troubleshooting a Damaged System

169

Troubleshooting the System Battery

170

Troubleshooting Redundant Power Supplies

171

Troubleshooting System Cooling Problems

172

Troubleshooting a Fan

173

Troubleshooting System Memory

174

Troubleshooting an Internal USB Key

176

Troubleshooting a Diskette Drive

177

Troubleshooting an Optical Drive

179

Troubleshooting a SCSI Tape Drive

180

Troubleshooting a Hard Drive

181

8

Contents

Page 8
Image 8
Dell DR715 159, 160, 167, Troubleshooting a Wet System 168, 169, Troubleshooting the System Battery 170, 171, 172, 173