dave_the_nerd
Lifer
- Feb 25, 2011
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There is no BIOS,only Zuul!, intel Macs use EFI, and it's not user exposed. There's no point in disabling Turbo, it's there to improve battery life. By spinning up just 1 core, it can complete tasks faster and thereby return to a MUCH lower power state sooner. That's its whole job.
Adjusting the brightness though, sure, that'll affect battery life a little bit.
I think you might be able to disable Turbo in Windows, but I doubt it will make up for the battery hit you'll take just from running Windows (Macs just don't get great battery life in Windows, poorly optimized drivers most likely).
http://macdownload.informer.com/turbo-boost-switcher/
If you know you're going to be running a constant load in a realtime application (gaming is the big example for me) you can turn it off. Also prevent overheating problems.
Finally, Open Firmware is definitely accessible by the user. If they're so inclined.
http://support.apple.com/en-us/HT1352
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