So i bought a refurbished fat backwards compatible model, a few months go by and i get the YLOD. rather than pay $ony $150, i took it to a local shop and got it fixed. it works fine, but the fan is as loud as a hairdryer now, no joke. I talked to the guy who fixed it and he said if he turned the fan down it would just overheat and get the YLOD again. I know there has to be some kind of happy medium with the fan, i dont mind it being a little overclocked, but its just so damn loud.