IBM 86605SU Maintenance Manual - Page 194

Information LED Panel The information LED panel on the front of the server contains status lights. System POST Complete Light System Error Light System Power Light SCSI Hard Drive Activity Light Processor 1 Activity Light OK 1 2 Processor 2 Activity Light 100 LINK TX MB OK RX Ethernet Speed 100 Mbps Light Ethernet Link Status Light Ethernet Transmit/Receive Activity Light System Power Light: When this green light is lit, system power is present in the server. When this light flashes, the server is in standby mode (the system power supply is turned off and AC current is present). When this light is off, it indicates either power supply failure, an AC power failure, or a light failure. Note If this light is off, it does not mean there is no electrical current present in the server. The light might be burned out. To remove all electrical current from the server, you must unplug the server power cords from the electrical outlets. System POST Complete Light: This green light is lit when the power-on self-test (POST) completes without any errors. SCSI Hard Drive Activity Light: This green light is lit when there is activity on a hard drive. System Error Light: This amber light is lit when a system error occurs. A light on the diagnostics LED panel will also be lit to further isolate the error. (For more information, see "Symptom-to-FRU Index" on page 263) Processor 1 Activity Light: This green light is lit when there is activity on microprocessor 1 (the primary microprocessor). Processor 2 Activity Light: This green light is lit when there is activity on microprocessor 2 (the secondary microprocessor). Netfinity 5500 - Type 8660 189