IBM 86655RY Hardware Maintenance Manual - Page 38
Diagnostic panel LEDs, Action, AC power LED, Description and action
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AC power LED DC power LED Description and action On Off There is a dc power problem. Possible causes: 1. The server is not turned on (the power LED is blinking on the front of the server). Action: Press the power-control button to start the server. 2. The power supply has failed. Action: Replace the power supply. Off Off There is an ac power problem. Possible causes: 1. There is no ac power to the power supply. Actions: Verify that: • The electrical cord is properly connected to the server. • The electrical outlet functions properly. 2. The power supply has failed. Action: Replace the power supply. Diagnostic panel LEDs The following illustration shows the LEDs on the diagnostics panel inside the server. See Table 1 on page 30 for information on identifying problems using these LEDs. 28 Hardware Maintenance Manual: Netfinity 7600 - Type 8665 Models 1RY, 2RY
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