Running the Embedded System Diagnostics from the Dell Lifecycle Controller........................................135
System diagnostic controls..................................................................................................................................... 135
Chapter 6: Jumpers and connectors .......................................................................................... 137
System board jumpers and connectors...................................................................................................................... 137
System board jumper settings......................................................................................................................................139
Disabling forgotten password.......................................................................................................................................139
Chapter 7: Getting help..............................................................................................................140
Contacting Dell EMC...................................................................................................................................................... 140
Documentation feedback...............................................................................................................................................140
Accessing system information by using QRL............................................................................................................140
Quick Resource Locator for R640..........................................................................................................................141
Receiving automated support with SupportAssist ..................................................................................................141
Recycling or End-of-Life service information............................................................................................................141
6 Contents