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Motherboard Battery? Old Technology

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#1 TheEgg


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Posted 07 June 2010 - 05:44 PM

In the old days, some console cartridges had a battery in them to store game saves. But I think thats old technology, right? Today we don't use cartridges anymore, but if we did, I would imagine they would work with flash memory. Flash memory requires no battery.

But motherboards still have batteries to store...(the bios info, right?). Why should they need a battery anymore. Shouldn't they be able to hold info with flash memory (no battery)?

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#2 Platypus


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Posted 07 June 2010 - 08:27 PM

BIOS settings could be stored in Flash RAM, but there wouldn't be any real gain from doing that. A battery would still be needed to operate the real time clock (RTC) while the computer is powered down. The existing CMOS memory that holds the BIOS data is part of the RTC chip, so it's there to use anyway.
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