Gateway 7400 System Manual (PDF Version) - Page 20

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 NMI button PS 2 status LED Chassis intrusion detection switch System reset button Power button Front panel connector Power supply alarm speaker reset/System fault LED reset switch 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. 12 System Features