My xbox 360 is not loading up..i think its the fan

Is the light on the power supply? if so is it red, green or amber? this can help. If its red it could be either
the power supply which is faulty or a major problem with the 360 which is causing a short or something
similar. What is probably wrong witht he 360 is the 3rrod:

When the Xbox 360 overheats it causes the lead free solder to crack, the more that crack the worse the
machine will get. So eventually I suspect your machine will die completely and show either 3rrod or e74.

To remedy this you need to strip the console down and replace what's called the X-Clamps, at the same
time replace the heat-sink paste and then you need to re-heat the whole board. We use a special IR over
which re-bakes everything and re-seats the solder properly, a lot of people use a heat-gun but you have
to be very careful.

Linda

If you have the red lights coming on you will need to get it repaired, the problems are caused by the motherboard overheating.

You can actually do this yourself or you can send it in to have it repaired.