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  1. Member
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    Feb 2008
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    Is it correct that the Power-On Hours (POH) attribute in the hard drive's SMART is not affected by changes in the system clock?

    For example, if I increase the system time in Windows by 5 hours, the Power-On Hours counter in the SMART will stay the same and will not increase by the 5 hour clock change?
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  2. I'm a Super Moderator johns0's Avatar
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    Jun 2002
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    Best way to find out is to try out what you are asking.
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  3. Member Krispy Kritter's Avatar
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    Jul 2003
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    St Louis, MO USA
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    It tracks the amount of time the drive is on. The clock has nothing to do with it.
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