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dallas rtc

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First post, by cnpr

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do the dallas rtc battery also save the cmos settings?

Reply 4 of 6, by dogchainx

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If the internal battery of the dallas RTC is dead, you can cut into the chip and add an external coin battery to it. I've done it to three dallas RTCs now, works great, and when the external battery dies you just add another coin battery.

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Reply 5 of 6, by Unknown_K

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There are a few different models in use from my experience. The differences are probably in data size since most EISA systems seem to use Dallas chips to store CMOS and EISA configurations.

http://www.mcamafia.de/mcapage0/dsrework.htm shows how to redo the battery on the most common variety.

Collector of old computers, hardware, and software