IBM 86803RU Hardware Maintenance Manual - Page 26

System Component Status Indicators: Status indicators on the I/O board, processor board, memory board, and the Advanced Remote Management Controller can help identify problems. The indicators are lit during POST to ensure the indicators operate. After POST completes, the indicators show the status of the component. For the location of the status indicators, see: "Processor Board Component Locations" on page 165. "Memory Board Component Locations" on page 147. "I/O Board Component Locations" on page 142. "I/O Board LEDs" on page 143. "Advanced System Management PCI Adapter Component Locations" on page 88. Processor Board LEDs Indicator Microprocessor Bus Activity LED Microprocessor VRM Status LED Microprocessor Termination LED ERR 0 and ERR 1 LEDs Description If activity on the microprocessor bus is present, the indicator for the slot is lit. If a VRM or processor fails or is missing, the LED will light. If proper termination of the microprocessor slot 4 is present, the indicator is lit. If either LED is on, see "Symptom-to-FRU Index" on page 182 for an explanation. Memory Board LED Indicator Memory Module Status LED Description If a memory module is present and has failed, the indicator for the slot is lit. I/O Board LEDs Indicator Power On LED Attention LED Description If power to a PCI slot is present, the indicator for the slot is lit. Your operating system defines the meaning of this indicator. Refer to your operating system documentation for more information. For additional I/O Board LEDs, see "I/O Board LEDs" on page 143. 18 Netfinity Server HMM