HP Deskpro /M Desktop PC 486/66M Compaq Deskpro Family of Personal Computers, - Page 13
No Power, Part 2
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3. No Power, Part 2 Continued from Page 2-3, No Power, Part 1 Caution: Power is continuous to the system board and power supply even when the power switch is turned off. To prevent damage to the unit, disconnect the power cord from the power source or the unit before beginning disassembly procedures. Power supply N connected to system board? Plug power connector into system board. Replace power supply. Y System Y board have 5V Aux LED? Plug in power cord. N 1. Press power button on. 2. Check for fan rotation. 3. Press power button off. N 5V Aux LED on? Y Replace power supply. N N 1. Unplug power to all drives. Does fan spin? 2. Remove all installed cards. 3. Press power button on. Does fan spin? Y Y 1. Add drives back one-ata-time to find faulty drive. 2. Add cards back one-ata-time to find faulty card. Go to Page 2-5, No Power, Part 3 N Power on? Y Done 2-4 Troubleshooting Flowcharts for Desktop Computers