chugach said:
...I see many articles/posts regarding the PB overheat/warping problems, and the iBook recall to replace the logic board...I understand that the Rev C PB's have less issues with heat than it's predecessors (although I am now reading about people installing latest sys updates experiencing higher temps after the upgrade)...How many of you are covered by extended Apple Care?
Ex Ap Care is probably a good idea, especially on laptops and LCD displays. My iB logic board was not covered by the original logic board recall, but ended up in the 2nd group. That was a moot point, though, because well before that I had replaced it and sold it as a parts ball to a buddy. I would guess the great majority of those iB's will not ever take advantage of the replacement program for similar reasons, although knocking mine off a desk just before it died probably would have disqualified mine anyway.
When I got my PB, AAC had just come out and I somehow neglected to get about 1/4 of my mp3 library off the iB HD, so I just decided to re-encode all 200 CDs in my collection over the July 4th (2003) weekend. Within 3 days of that I noticed that the case had warped from heat, probably from the high use. There were no warnings that I might be able to prevent this by not doing this setting on a futon and using a hard desktop instead, and no indications that if I downloaded a power management update and trashed the one that shipped I also might have avoided this. Too late. Sorry, sucker.
I don't think the iB had a fan. If it did, it was a whisper fan running at low air volume. The PB fan is stronger and louder, which I assumed was because the G4 produced more heat than the G3 in my iB. Now that iB's have G4's they may have louder fans as well.
Some of the discrepancies we are seeing here about speed issues are possibly based on RAM or whether particular apps are Altivec accelerated. I have only 384 in my PB (as I did in my iB) and it seems much faster (G3 700 vs. G4 900 +Altivec). In both cases, however, once you get more than a few apps loaded there is a lot of VM paging going on...a starling amount if you open the activity monitor and check. Apple did such a superb job with VM that very little slowdown is noticeable, and I have had 9 or 10 apps open with no problems or warnings. Since all newer iB's are G4's, there might not be a lot of speed differences between new models of iB vs, PB.