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Checksum error after CMOS battery change

sherbie28
sherbie28 Posts: 669 Forumite
Part of the Furniture 100 Posts Combo Breaker
in Techie Stuff
My pc (win xp, desktop computer) clock was losing time so I replaced the battery on the motherboard. Ever since I inserted the new battery upon boot up I get this screen (see pic). I booted up with the side of the tower off and I can see the fan working so I am at a loss as to what the problem is. Am I risking damaging the pc by using it? Thanks

pcbios_zps2e7e1237.jpg

Comments

  • alanrowell
    alanrowell Posts: 5,391 Forumite
    Part of the Furniture 1,000 Posts Combo Breaker
    Check that everything linked to the fan is plugged in solidly.
  • atrixblue.-MFR-.
    atrixblue.-MFR-. Posts: 6,887 Forumite
    check CPU_fan 3 pin connector on the motherboard.


    also check no wires from anything has got caught up in the fan itself.
  • Nilrem
    Nilrem Posts: 2,565 Forumite
    Part of the Furniture 1,000 Posts
    As mentioned check the fans are spinning freely/plugged in.

    What might have happened is that the fan is plugged into the motherboard header and working ok, but it's a lower speed fan than the motherboard expects (happens from time to time if you use a 120mm fan which only needs to work at a fraction of the speed of a 60-80mm fan for the same airflow*), so you should be able to disable the warning in the bios (usually under PC health or similar) if it is working ok.



    *For example if you use a good aftermarket cooler on your CPU it might use a much larger (120mm+) fan which spins much slower than the stock cooler's fan would.
  • NiftyDigits
    NiftyDigits Posts: 10,459 Forumite
    By the looks of it, you are on the base BIOS version. ASUS P5VD2-VM?

    If it is, the latest BIOS version is here

    Should solve the fan problem and add a little extra too.

    You should use their EZ Flash 2 utility to flash the BIOS if you decide to go ahead.

    BIOS flashing is risky, so don't do it unless you have an idea as to how to recover the machine in the case of a bad flash.
  • sherbie28
    sherbie28 Posts: 669 Forumite
    Part of the Furniture 100 Posts Combo Breaker
    NiftyDigits: I downloaded the updated BIOS version but when I extract the file it is opening as a BIN in vlc media player and I can't do anything with it.
  • TheSaint_2
    TheSaint_2 Posts: 1,011 Forumite
    Part of the Furniture 500 Posts Combo Breaker
    Bin stands for binary as niftydigits said, use the ez flash utility to flash the bios. Or just ignore the message.
  • NiftyDigits
    NiftyDigits Posts: 10,459 Forumite
    Video Guide

    You would need a USB drive preferably under 4GB and Rufus(in order to make the USB drive bootable).

    Seems a bit out of your comfort zone, so I'm not going to encourage to update the BIOS.
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