1About Your SystemFront-Panel Features And IndicatorsThe following topic describes the front-panel features and indicators of the Dell DR4100 system.Figure 1. Front-Panel Features and IndicatorsItem Indicator, Button, orConnector Icon Description1 Diagnostic indicators The diagnostic indicators light up to display error status.2 System identification button The identification buttons on the front and back panelscan be used to locate a particular system within a rack.When one of these buttons is pressed, the system statusindicator on the back flashes until one of the buttons ispressed again.Press to toggle the system ID on and off.If the system stops responding during POST, press andhold the system ID button for more than five seconds toenter BIOS progress mode.To reset the iDRAC (if not disabled in F2 iDRAC setup)press and hold the button for more than 15 seconds.3 Power-on indicator, powerbuttonThe power-on indicator lights when the system power ison. The power button controls the power supply output tothe system.NOTE: On Advanced Configuration and PowerInterface (ACPI)-compliant operating systems,turning off the system using the power button causesthe system to perform a graceful shutdown beforepower to the system is turned off.4 NMI button Used to troubleshoot software and device driver errorswhen running certain operating systems. This button canbe pressed using the end of a paper clip.7
