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What is the safest way to replace a CMOS battery?

Discussion in 'Hardware' started by LadyBlahBlah, Nov 1, 2012.

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  1. LadyBlahBlah

    LadyBlahBlah Thread Starter

    Joined:
    Jan 20, 2012
    Messages:
    6
    Hi,
    Since around 3 days ago, I started having problems with the date and time on my computer. Yesterday when I started up my computer, it gave me a 'CMOS Checksum error - defaults loaded' screen and I had to press F1 to start up my computer. When the computer did boot, my date and time had been reset back to Midnight 1st January 2007. Turning on my computer today, I got the exact same error message and my date/time resetting.
    I can only assume the CMOS battery is either dead or dying.

    I've watched some videos on YouTube and replacing it seems simple enough, but I'm a bit worried about damaging my motherboard. I'm still an amateur with computers and I've never done any physical work to one before. I've heard quite that static electricity can fry circuits in your motherboard and this had got me worried, lol. What would be the safest way of removing the CMOS battery without damaging anything?

    I'm running a Windows Vista Desktop by the way.

    Also, a bit off-topic, but will the computer just start as normal after replacing the battery and/or will I lose any kind of data?
     
  2. bravo3Sgt

    bravo3Sgt

    Joined:
    Oct 22, 2012
    Messages:
    72
    Replace it as you would replace a normal AA battery. The computer will start just fine after replacing it.
     
  3. C141

    C141

    Joined:
    Jun 7, 2011
    Messages:
    632
    Be sure to have your computer disconnected from AC power. It also doesn't hurt to press the power button on the computer to bleed down the capacitors.
     
  4. Amd_Man

    Amd_Man

    Joined:
    Oct 17, 2012
    Messages:
    605
    Do it on a table and not a carpeted floor. You can ground yourself to the case by resting your arm on it while replacing the battery. Following C141's advice is a always advisable too. Once you replace the battery and power up you will need to enter into BIOS and set the time and date to present plus any other custom settings you had.
     
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