Both of my PS3s (both original 60GB units) chose to die via RLOD within 24 hours of each other after nearly four years of perfect service. Needless to say I was disappointed.
After re-seating the hard drives, blowing out dust, letting them cool off (all the easy recommendations) I decided to go for broke and get a heat gun and thermal paste and heat me up some reality synthesizers.
I followed these instructions that I found on YouTube:
After a few hours I had (surprisingly) both PS3s up and running fine! I was very skeptical about the process, but it worked perfectly. It's only been a week, and who knows how long the fix will last, but so far, so good.
Anyone else had to do this?