I was using the computer the other day and it was making a sound like the fan was running non stop. The next day we went to use it and it would not power up. We tried replacing the power supply, what happens when we turn on the power supply, the fan inside makes a slight jerk, and the power button on the tower blinks yellow for a split second. But nothing starts up. The monitor light is yellow. Will I be able to recover my data or is all hope lost. Any help to get this working again would be greatly appreciated.