IBM 8681 Hardware Maintenance Manual - Page 184
Power control card LED, the system has a 240VA fault, which will shut down
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Power control card LED The power control card LED is located in the center of the system, between the processors and the midplane. On the power control card is an LED that provides status of the card based on its flash rate. To view the LED, look through the hole in the left side of the chassis. With AC power applied to the power supplies, the following conditions may be indicated by the power control card LED: 1. Slow flash rate (approximately 1 flash per second) the power control card is functioning properly. 2. No flashing LED - Power control card is not operational. Replace the power control card. 3. Fast flash rate (approximately 2 flashes per second) the system has a 240VA fault, which will shut down the system, indicating a possible processor failure or a short in a system component. If a 240VA fault is indicated (LED flashing rapidly), do the following: 1. Leave the AC power applied. 2. Connect to the service processor and view the system error log, looking for a power failure message on one or more of the power planes. If a power failure message is posted, refer to the following table and proceed as indicated. 176 Netfinity Server HMM
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