Dell E33S001 - Page 7

9 Troubleshooting your system......................................................................................................................138
Safety rst—for you and your system........................................................................................................................ 138
Troubleshooting system startup failure........................................................................................................................138
Troubleshooting external connections......................................................................................................................... 139
Troubleshooting the video subsystem..........................................................................................................................139
Troubleshooting a USB device......................................................................................................................................139
Troubleshooting a serial input and output device.......................................................................................................140
Troubleshooting a NIC....................................................................................................................................................140
Troubleshooting a wet system...................................................................................................................................... 140
Troubleshooting a damaged system..............................................................................................................................141
Troubleshooting the system battery.............................................................................................................................142
Troubleshooting power supply units.............................................................................................................................142
Troubleshooting power source problems...............................................................................................................142
Power supply unit problems.................................................................................................................................... 142
Troubleshooting cooling problems................................................................................................................................ 143
Troubleshooting cooling fans.........................................................................................................................................143
Troubleshooting system memory..................................................................................................................................144
Troubleshooting an internal USB key........................................................................................................................... 145
Troubleshooting a micro SD card..................................................................................................................................145
Troubleshooting an optical drive...................................................................................................................................146
Troubleshooting a drive or SSD.................................................................................................................................... 146
Troubleshooting a storage controller............................................................................................................................ 147
Troubleshooting expansion cards..................................................................................................................................147
Troubleshooting processors...........................................................................................................................................148
System messages...........................................................................................................................................................148
Warning messages....................................................................................................................................................148
Diagnostic messages................................................................................................................................................148
Alert messages......................................................................................................................................................... 149
10 Getting help..............................................................................................................................................150
Contacting Dell............................................................................................................................................................... 150
Documentation feedback.............................................................................................................................................. 150
Accessing system information by using QRL..............................................................................................................150
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