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8 | Contents
Removing the Sensor Board for 3.5” Hard Drive System .................. 143
Installing the Sensor Board for 3.5” Hard Drive System .................... 145
Removing the Sensor Board for 2.5” Hard Drive System .................. 146
Installing the Sensor Board for 2.5” Hard Drive System .................... 148
4 Troubleshooting Your System ................................................. 149
Safety First – For You and Your System ........................................................ 149
Installation Problems ........................................................................................ 149
Troubleshooting System Startup Failure....................................................... 150
Troubleshooting External Connections ......................................................... 150
Troubleshooting the Video Subsystem .......................................................... 150
Troubleshooting a USB Device ....................................................................... 150
Troubleshooting a Serial I/O Device .............................................................. 151
Troubleshooting a NIC ...................................................................................... 152
Troubleshooting a Wet System ....................................................................... 153
Troubleshooting a Damaged System ............................................................. 154
Troubleshooting the System Battery .............................................................. 154
Troubleshooting Power Supplies ................................................................... 155
Troubleshooting System Cooling Problems ................................................. 156
Troubleshooting a Fan ...................................................................................... 156
Troubleshooting System Memory ................................................................... 157
Troubleshooting a Hard Drive ......................................................................... 159
Troubleshooting a Storage Controller ........................................................... 160
Troubleshooting Expansion Cards ................................................................. 161
Troubleshooting Processors ........................................................................... 162
IRQ Assignment Conflicts................................................................................. 163