General Description 2-713 Memory board error lamp14 I/O board error lamp15 Power supply unit error lamp16 FAN error lamp17 Thermal error lamp18 Dump switchThe dump switch is used to collect the event logs having occurred in the server.19 CLEAR switch20 USB3 connectorUsed to connect with a device accepting the USB 1.1 interface.21 Serial Port B connectorUsed to connect with a device having a serial interface. UPS must be connected to Serial PortA connector on the rear side of the server. Serial port B on the front panel and that on the rearpanel are mutually exclusive.IMPORTANT: The shape of serial port B (on the rear panel)connector is the same as that of LAN connector and ICMB connector(RJ-45). Pay attention to connect the proper cable.