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NVRAM info for SPARC users

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See also:- RAM manufacturers, Solid state disks, Repair and Maintenance, Sun/SPARC Resellers in the USA, Sun/SPARC Resellers in the UK

An NVRAM is a non volatile RAM commonly used to store system configuration information when the power is turned off. Early versions of these devices used to contain an internal battery designed to last 10 years or more. During the last 20 years since these types of devices (and much more reliable alternatives which don't need a battery) have largely replaced the rows of DIP switches, links and other mechanical paraphenalia which used to clutter up printed wiring boards, and make system integration such a black art. When they're working they simplify the task of selecting low level firmware options for your computer. When the NVRAM fails, the attached hardware becomes unusable. Our search engine showed that lots of readers have been looking for info related to these devices and problems. Further comments on suppliers and info are welcome.
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