Disabling a forgotten password.....................................................................................................................................102
9 Troubleshooting your system......................................................................................................................103
Troubleshooting a USB device...................................................................................................................................... 104
Troubleshooting a NIC................................................................................................................................................... 105
Troubleshooting a wet system...................................................................................................................................... 105
Troubleshooting a damaged system.............................................................................................................................106
Power supply unit problems.................................................................................................................................... 107
Troubleshooting cooling problems................................................................................................................................ 108
Troubleshooting cooling fans.........................................................................................................................................108
Troubleshooting system memory..................................................................................................................................109
Troubleshooting an SD card........................................................................................................................................... 110
Troubleshooting an optical drive....................................................................................................................................110
Troubleshooting a hard drive...........................................................................................................................................111
Troubleshooting expansion cards.................................................................................................................................. 112
Troubleshooting processors........................................................................................................................................... 113
10 Getting help...............................................................................................................................................114
Contacting Dell................................................................................................................................................................ 114
Documentation feedback............................................................................................................................................... 114
Quick resource locator..............................................................................................................................................115
6
Contents