Reasons

dpaul8

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Sep 15, 2009
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Have you set it properly in the BIOS.

If it is slowly loosing time, you should replace the CMOS battery on the motherboard. It is usually a very thin coin size battery on the motherboard.
 
Hi newcomer and welcome to the Tom's hardware forum.

What mobo do you have?, like dpaul8 said you need change this on your mobo. Look for the manual of your mobo, in this you can find the correct battery model that you need buy to change your current battery.