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why is my pc resetting when i reboot

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Dr Super Good

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Level 64
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Jan 18, 2005
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Yes exactly. On the mother board there should be a clock battery which allows your computer to keep time even when unplugged. When it degrades (so its internal resistance is too high) the computer becomes unable to keep the clock correct every time it is turned off. When this occurs, it will continually reset the clock to the OS default value on machine start.

Proof? Well get your computer, unplug it for an hour (so all residual charge is lost) and then start it up. If the battery is working correctly it will show approximatly the correct time (to within a few seconds atmost). If the battery is dead, it will show some nonsense time (usually not in the same year it currently is).

This was definatly the case for old computer, not sure if it still is the case.
 
Level 15
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Mar 31, 2009
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1,397
Yes exactly. On the mother board there should be a clock battery which allows your computer to keep time even when unplugged. When it degrades (so its internal resistance is too high) the computer becomes unable to keep the clock correct every time it is turned off. When this occurs, it will continually reset the clock to the OS default value on machine start.

Proof? Well get your computer, unplug it for an hour (so all residual charge is lost) and then start it up. If the battery is working correctly it will show approximatly the correct time (to within a few seconds atmost). If the battery is dead, it will show some nonsense time (usually not in the same year it currently is).

This was definatly the case for old computer, not sure if it still is the case.

Thats the CMOS battery Super, it does more than just the clock, so refer to it as the CMOS battery <_>
 
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