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Fix possible hibernation activation in desktop Macs
To quote the manpage (emphasis mine): hibernatemode = 3 (binary 0011) by default on supported portables. The system will store a copy of memory to persistent storage (the disk), and will power memory during sleep. The system will wake from memory, unless a power loss forces it to restore from disk image. hibernatemode 3 does "powers" not "powers off" the RAM. It simply makes it so that if power is lost while the machine is asleep, that the state can be restored from the sleepimage, which shouldn't be of much concern on a desktop. If you want to do a real "hibernate" (i.e. power off after sleeping to disk), you want hibernatemode=25 according to the manual. Note that this will make your computer take _much_ longer to wake from sleep. With fast restore in 10.7, you'd probably be better off shutting it down in my experience.
Fix possible hibernation activation in desktop Macs
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