IBM 865511Y Hardware Maintenance Manual - Page 67
Power supply, supply cables connected to the system board.
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Power supply If the power-on indicator is not on, the power-supply fan is not running, or the computer will not power-off, do the following. Check/Verify 1. Verify that the voltage-selector switch is set for the correct voltage. 2. Check the following for proper installation. Power Cord On/Off Switch connector On/Off Switch Power Supply connector System Board Power Supply connectors microprocessor(s) connection 3. Check the power cord for proper continuity. 4. Check the power-on switch for continuity. FRU/Action Correct the voltage-selector switch setting. Reseat Power Cord Power-on Switch If the above are correct, check the following voltages. Note These voltages must be checked with the power supply cables connected to the system board. + 4.75 to 5.25 V dc - 4.5 to 5.5 V dc GND - 10.8 to 13.2 V dc + 11.4 to 12.6 V dc + 4.75 to 5.25 V dc PWR GOOD REAR P2 P1 Netfinity 8655 - Type 8655 59