Troubleshooting a NIC..................................................................................................................... 226
Troubleshooting a wet system......................................................................................................... 227
Troubleshooting a damaged system............................................................................................... 228
Troubleshooting the system battery................................................................................................228
Troubleshooting power supply units............................................................................................... 229
Troubleshooting power source problems.................................................................................229
Power supply unit problems.......................................................................................................229
Troubleshooting cooling problems................................................................................................. 230
Troubleshooting cooling fans..........................................................................................................230
Troubleshooting system memory.................................................................................................... 231
Troubleshooting an internal USB key...............................................................................................232
Troubleshooting an SD card.............................................................................................................233
Troubleshooting a hard drive........................................................................................................... 233
Troubleshooting a storage controller..............................................................................................234
Troubleshooting expansion cards....................................................................................................235
Troubleshooting processors............................................................................................................ 236
System messages..............................................................................................................................236
Warning messages...................................................................................................................... 236
Diagnostic messages...................................................................................................................237
Alert messages.............................................................................................................................237
10 Getting help.................................................................................................... 238
Contacting Dell.................................................................................................................................238
Documentation feedback.................................................................................................................238
Accessing system information by using QRL.................................................................................. 238
Quick Resource Locator for PowerEdge R730 and R730xd systems.......................................239
8