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CMOS CHECKSUM error

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fail to bootup but the last shutdown was done properly i'm sure.
Error msg 'CMOS checksum error'appear when i try to boot.And i am given the option to choose 'Press F1 to resume or delete to enter setup'.if F1 was choosen,it will be able to boot using safe mode.the os i'm using is windows me.

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by dmiles

Check the CMOS battery by replacing it ,this will cause the checksum error
Also you will want to check your memory modules to make sure they are seated properly and if you have recentlychanged memory make sure that it is the same type

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