How to Fix the Ylod Ps3?

I know there are 2 reasons for the YLOD happening, one is if the hardrive faults and the other is a bad power source. My ps3 literally broke this morning. And I'm pretty sure it's because of the bad bad power source. How do i fix this? Without sending it off to sony. As there are videos to fix the hard drive problem but none to fix this one. Thanks

Suggestion:

As like some people, i was 1 of the unlucky 1's to get a yellow light of death on the ps3
these are the things iv tryed to get it working again:

1. push n hold the power button for 5 second to do that reset trick
2. hold the ps3 upside down then turn it on to do that fan trick
3. tried cleaning the dust out of it
4. tried removing the hard drive
5. took it apart a little bit(took out the blu-ray & power box) & put it back

there might av bin a thew others i tried but they all failed.
at the weekend im taking it to my mums boyfriend for a complete strip down of all the parts & see if we can find out the problem to this. he fix's computers on a regular basis & hes pretty good so he should be of some use. even tho the ps3 isn't a PC but its close to 1.

iv seen a video on you-tube where some 1 did get it running but without video or sound. check it out:

http://uk.youtube.com/watch?v=s76nJJqY6w4 part 1
http://uk.youtube.com/watch?v=I33xhBgY-rw part 2