not worth the effort. opened mine last february, a 40gig model because the fan started to go on high because of the damn hot weather. couple it up with graphic demanding games like heavy rain and my ps3 sounds like a vaccum.
anyway, there wasn't a lot of dust in it, the fan test would do fine to blow it all out. compressed air would also do fine.
but it was a good thing i opened up my ps3, the thermal paste was almost all but dried out and kinda crumbly. since i've already opened it, i cleaned the contact points between the gpu/cpu and the heatsinks and re-applied thermal compound. now its lasts a whoe 10mins longer before the fan goes into high hahaha!
damn heat! cant wait for the rainy season







