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What is a CMOS battery & what systems dates does it affect?

Here's my problem - when I try to run a computer game, I get this message:

C:\Prpgram Files\Microsoft Games\Gears of War\Binaries\WarGame-G4WLive.exe: You cannot run the game with modified executable code. Please reinstall the game.

I did not modify any code nor does reinstalling seem to help. So, I've looked around in some forums for a solution and I found this: "I found the solution! Turns out that when noise control cut off my power for cranking Megadeath too loud, my cmos battery ran out and my date changed. Simply changed it back."

I have no idea what any of that means. Change what date? My system looks up to date and I don't see a problem. I'd really appreciate any help to make sense of it. Thanks

3 Answers

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  • 1 decade ago
    Favorite Answer

    The CMOS battery is a batter on the motherboard. It's like a watch battery or calculator battery, about the size of a nickel. This stores your system settings, such as RAM timings, date and time, and processor settings (voltages, FSB speed, etc). If your system is overclocked, pulling the battery will reset the timings. In all other cases, the worst it will do is reset the time.

    You know you can just enter the BIOS and adjust the time manually, right? Press Del (or F12) on startup, when it says "Enter Setup" Set the time, save and exit.

    This issue might be PunkBuster or some other type of DRM/anti cheating software. Find out if you need to patch the game or update Punkbuster manually.

  • 1 decade ago

    The CMOS battery is a Quarter-Dollar sized battery (usually a CR2013) or something.

    It basically keeps your motherboard/CPU settings and computer clock(Date) running when your computer is unplugged.

    Computers that have been unplugged (or Power supply switched off) for long periods can drain this battery...

    You can get this in most electronic stores, and if you open your computer case, you'll see it nearly straight away... Manufacturers tend to make it quite visible, in the corner of something

  • Every PC since IBM's 1984 AT has had an internal clock backed by a lithium battery. Some programs check this clock to see what date it is, and refuse to run if the time is far in the future or past, presumably to prent bugs from manifesting. You can change this clock setting by double-clicking the clock on your taskbar and making sure your PC's set to 2009.

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