LAPTOPS: Difference between Sleep and Hibernate

http://lmgtfy.com/?q=difference+between+sleep+and+hibernate

 

I've heard from a couple of different people who work on/ sell computers that sleep mode and hibernate mode aren't very reliable for computers, they're unstable for the OS or something.

 

Sleep = computer is still "running", in very low power mode, power is being used to keep the memory refreshed, but the hard drive shuts down, screen turns off, etc.


Hibernate = save all the contents of memory to the hard drive... so that when you turn on the computer again, you can pick up where you left off.



If you are leaving it plugged in, and will be using it again soon, sleep is what you want. If you are unplugging it for some time (hour or more), or will not be using it again for some time, hibernate is what you want.

 

Hibernate is defintely unreliable and can cause serious kernel corruption, possibly hosing your OS (have personally had it happen). Sleep is much much less likely to cause the same type of problem because the data that was in the RAM stays there, rather than being written to the hard-drive, but that isn't to say that it can't happen. If there does happen to be some problem with going into/coming out of sleep mode, any corrupted data is likely to just be destroyed when you have to restart your computer, and since that data was never written to the hard-drive, there shouldn't be any effect on the kernel or system files.

 

ask him ----




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Thanks for this info. I think this is the reason my computer sometimes fails to boot up after being in hibernation. Once I turn it off and let it sit for a period of time it starts up fine.