
It didn't matter how hot the notebook got, the fans would just refuse to spin at above 1K RPM. To figure out the problem, I downloaded iStat Pro, installed it, and felt my heart sink as I saw the fan speeds of the PowerBook stuck at 300-800RPM. With many complaining about loud PB fans, I wondered why my G4's fans were noticeably quieter than even my MacBook Air's. Now, I've seen from many others that the nominal RPM range for the PowerBook fans are from 0-9000RPM, but at scaldingly hot temperatures, my PowerBook stays at 140-142º F even when doing light tasks such as browsing the web with plugins disabled. Whenever I'm plugged in, the temperature just skyrockets to over 140º F. For some reason, the fans just seem unable to cool down the computer. While using the notebook for day-to-day tasks, I nearly never miss my MacBook Air, but when I'm using it plugged in, a puzzling problem begins to arise. I decided to see how long I could survive in a web browser, so I bought a new replacement off-brand battery, and I was back in business with a respectable 3.5 hour battery life. I got it in 4 days, and boy, does this thing fly with 10.5 on it. It even came with the original power cord, all for only $89 without shipping! I traversed eBay for a good condition PowerBook, and found a great deal on an A1106 1.67 G4 with no scratches or dents.

Having used Intel Macs all my life, I decided it was time to experience a PowerPC Mac.
