Hey great news! Here is a semi solution. I called around to see if there was an aftermarket fan replacement for the fan in the 667 but haven't gotten a response yet. i'll post one if I get one. HOWEVER i may have found another solution. The Powerbook Titanium 667 only has one fan in it but has space for 2 fans. The 800 and faster titanium books have 2 fans stock. By adding a second fan to the 667 the primary fan will start up when the temp gets high, but by adding a second fan which will come on later, if may keep the fan(s) from needing to run as long as they do now. Check this site out to order one. They are only 10 bucks and there is an install guide there too. You really have nothing to lose I guess.
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