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cmos checksum error defaults loaded

Discussion in 'Hardware' started by t4lor, Jul 27, 2006.

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  1. t4lor

    t4lor Thread Starter

    Joined:
    Jul 6, 2001
    Messages:
    168
    hi there can someone please help me i have got a error message that comes up as the pc is booting up,
    cmos checksum error defaults loaded
    i have replaced that cmos battery with one thats is out of date in 2016
    and have reset the bois time,
    but i still get the error message and the pc keeps forgetting the time,
    i hope some can help this is silly.
    cheers t4lor.
     
  2. HandleX

    HandleX

    Joined:
    Mar 18, 2006
    Messages:
    388
    could it be the cmos holding that is sodered down to the mb? this has happened to me before.
     
  3. onsite

    onsite

    Joined:
    Oct 30, 2004
    Messages:
    605
    OK , lets take it from the top
    you got the error so you took the old battery out
    the battery is a watch battery, right ?
    and you put in the exact same type ?
    did you move any jumpers ?
    did you put the battery back in with the same polarity, usually the + facing up.?
    do you have a voly ohm meter to test the battery voltage, i think it should be 3.3v aprox.
    also you did this while the pc was off ?
     
  4. t4lor

    t4lor Thread Starter

    Joined:
    Jul 6, 2001
    Messages:
    168
    yes i have done all the above you written for me,
    this is a problem i need to sort its a pain.
     
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