Item Indicator, Button, orConnector Icon Description10 Hard drives Up to four 3.5 inch hot-swappable hard drives/SSDs.11 Optical drive (optional) One optional slim SATA DVD-ROM drive or DVD+/-RW drive.Figure 2. Front-panel features and indicators—eight 2.5 inch hot-swappable hard-drives/SSDs chassisItem Indicator, Button, orConnector Icon Description1 Power-on indicator,power buttonThe power-on indicator lights when the systempower is on. The power button controls the powersupply output to the system.NOTE: On ACPI-compliant operating systems,turning off the system using the power buttoncauses the system to perform a gracefulshutdown before power to the system isturned off.2 NMI button Used to troubleshoot software and device drivererrors when running certain operating systems.This button can be pressed using the end of apaper clip.Use this button only if directed to do so byqualified support personnel or by the operatingsystem's documentation.3 System identificationbuttonThe identification buttons on the front and backpanels can be used to locate a particular systemwithin a rack. When one of these buttons ispressed, the LCD panel on the front and thesystem status indicator on the back flashes untilone of the buttons is pressed again.Press to toggle the system ID on and off.10
