SUPERSERVER 6021H Manual 3-3 Control Panel LEDs The control panel located on the front of the SC822 chassis has five LEDs. These LEDs provide you with critical information related to different parts of the system. This section explains what each LED indicates when illumi- nated and any corrective action you may need to take. l Overheat: Indicates an overheat condition in the chassis. This may be caused by cables obstructing the airflow in the system, or the ambient room temperature being too warm. You should also check to make sure that the chassis cover is installed and that all fans are present and operat- ing normally.
Make certain that the heat sinks are installed properly (see section 5-5 and figure 5-4) and make certain that the chassis top cover is in place durning server operation to assure proper cooling air circulation. NIC1 l NIC1: Indicates network activity on LAN1 when flashing. l NIC2: Indicates network activity on LAN2 when flashing. NIC2 l HDD: Indicates IDE channel activity. On the SuperServer 6021H, this light indicates CD-ROM drive activity when flashing. 3-2