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Front panel board
The front panel board supports the LEDs and buttons accessible from the front panel. The buttons and LEDs on the front panel board are shown and described below.
Power LED
Disk activity LED
System fault LED
PS 1 status LED
PS 2 status LED
System reset button
NMI button
Chassis intrusion detection switch
Front panel connector
Power supply alarm speaker reset/System fault LED reset switch
Power button
Power LED glows green whenever the system is turned on. The LED also flashes when the system is in sleep mode.
Disk activity LED glows green whenever a hard drive is actively reading or writing data.
System fault LED (yellow) indicates ECC memory system fault (steady indicates an uncorrectable ECC fault and blinking indicates a correctable ECC fault).
PS 1 status LED glows green when the first power supply module in the redundant power supply is installed and working correctly. It flashes green if the power supply module fails or one of its power levels goes out of bounds. If the power supply module is not installed, this LED is off.
12System Features