Repair my Xbox

When the Xbox is in problem no need to send it back to Microsoft which incidentally will cost an arm and a leg and access to Xbox 360 for 4-6 weeks.
The Repair guide with instructional videos to help us step-by-step through the following repair process. Take the outer case apart. Remove the DVD drive and unplug the cables. Remove the fan and the mother board. Turn the motherboard upside down; take off the x-clamp under the heat sink.
Remove the heat sink; this will reveal the GPU and CPU. Carefully clean any dust and debris from the GPU and CPU. Upon purchasing arctic silver thermal compound at any local computer store (cost is about $1) apply the compound over the GPU and let sit for 15-20 minutes.
Add two nylon washers on each screw from the heat sinks and screw them back on the motherboard. With the two screws screwed up through the motherboard add another 2 nylon washers to those same screws.
Place the heat sink on those screws, and then screw them up ensuring they are tight. Put all the other pieces back together and start it up.