3. No Power, Part 2

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

Plug power connector

 

 

 

 

connected to

 

 

 

 

Replace power supply.

 

 

 

into system board.

 

system board?

 

 

 

 

 

 

 

Y

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

N

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

System

Y

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5V Aux LED on?

board have 5V

 

 

 

Plug in power cord.

 

 

 

 

 

 

 

 

 

 

 

Aux LED?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

N

 

 

 

 

 

 

 

 

 

 

Y

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1. Press power button on.

2. Check for fan rotation.Replace power supply.

3. Press power button off.

N

 

 

N

 

1.

Unplug power to all drives.

Does

fan spin?

 

2.

Remove all installed cards.

 

 

 

 

 

 

 

3.

Press power button on.

 

 

 

 

 

 

 

 

 

Y

Does fan spin?

Y

1.Add drives back one-at- a-time to find faulty drive.

2.Add cards back one-at- a-time to find faulty card.

Go to Page 2-5,

 

N

 

 

Power on?

No Power, Part 3

 

 

 

 

 

 

 

 

 

Y

Done

2-4 Troubleshooting Flowcharts for Desktop Computers