quote:Originally posted by cromas
The HD, processor, etc. are off in both stand-by and hibernate. In stand-by mode, your RAM is frozen and the system shut off, so that when it resumes, you are right back where you left off. A small amount of power is diverted from the battery to power the RAM during stand-by, but other devices are powered down. In Hibernate mode, the contents of your RAM are saved to the hard drive, and then the system is powered off. This allows everything to power down, so that your battery doesn't get sucked away. The tradeoff is that it takes much longer to resume from hibernation.