Just got a Rev.A MacBook Air and purchased CoolBook for it. So far, I've set frequencies at 600, 800, 1200, 1400 and 1600MHz to run at 0.9V. My fans, even without running any video, is at 6200RPM and 60 degrees celsius. My MacBook never went over 2400RPM so I'm a bit concerned. What exactly is the throttling level? Are there any other settings I should address?