Windows 8 and 8.1 Forums


CMOS checksum error - defaults loaded

  1. #1


    Posts : 87
    Windows 8.1 Pro 64 Bit

    CMOS checksum error - defaults loaded


    Hi

    What does this error mean ?"CMOS checksum error - defaults loaded"

    Click image for larger version

    Can anyone help why this error occurs?

    I 've removed the battery on the motherboard and it worked well . , But again there was the same error.
    F 1 and F 2 keys do not work.

    thank you

      My System SpecsSystem Spec

  2. #2


    Posts : 279
    64-bit Windows 8.1 Pro


    This article may be able solve your problem ..

    How to Fix Windows Cmos Checksum Error
      My System SpecsSystem Spec

  3. #3


    Posts : 87
    Windows 8.1 Pro 64 Bit


    thank you
    but I can not get into Windows to install the software (Install Error Repair Tool).There is a possibility that the problem is RAM ?
      My System SpecsSystem Spec

  4. #4


    Posts : 87
    Windows 8.1 Pro 64 Bit


    Does not anyone help me ?
    I re- assembled system .This is the same error again
    I have delivered to my office tomorrow morning. Internal hard drive with ORCAD 16.5 is simulated projects.
      My System SpecsSystem Spec

  5. #5


    Problems like this are often caused by a bad CMOS battery.
      My System SpecsSystem Spec

  6. #6


    Posts : 87
    Windows 8.1 Pro 64 Bit


    Quote Originally Posted by LMiller7 View Post
    Problems like this are often caused by a bad CMOS battery.
    I removed the battery and then put a minute .
    Is it possible the battery is damaged ?
      My System SpecsSystem Spec

  7. #7


    A CMOS battery is very inexpensive so if you have any doubts about it you should replace it. It is a frequent cause of such problems.
      My System SpecsSystem Spec

  8. #8


    Posts : 87
    Windows 8.1 Pro 64 Bit


    Quote Originally Posted by LMiller7 View Post
    A CMOS battery is very inexpensive so if you have any doubts about it you should replace it. It is a frequent cause of such problems.
    Thank you.
    I replaced the battery. Now works fine.
      My System SpecsSystem Spec

CMOS checksum error - defaults loaded
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