108 Jumpers and connectors8Jumpers and connectorsThis topic provides specific information about the system jumpers. It also provides some basic information about jumpers and switches anddescribes the connectors on the various boards in the system. Jumpers on the system board help to disable system and setup passwords.You must knowthe connectors on the system board to install components and cables correctly.Topics:• System board jumper settings• System board connectors• Disabling a forgotten passwordSystem board jumper settingsCAUTION: Manyrepairsmay onlybedonebyacertifiedservicetechnician. You shouldonlyperformtroubleshooting andsimplerepairsasauthorizedinyourproductdocumentation, orasdirectedbytheonlineortelephoneserviceandsupportteam.Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructionsthatareshippedwithyourproduct.For information on resetting the password jumper to disable a password, see the Disabling a forgotten password section.Table 30. System board jumper settingsJumper Setting DescriptionNVRAM_CLR(default)The configuration settings are retained at system boot.The configuration settings are cleared at the next system boot.(default)PWRD_EN The password feature is enabled.The password feature is disabled.Related linksDisabling a forgotten password
