yeah your NVRAM is goin to be slightly more expensive than your SDRAM, and it's permanent. well, until you flash your bios or your cmos battery goes dead. (i have heard a user refer to this as a "seamast" battery)you're not going to have 64 MB of it, at any rate, because really that much isn't required for the things it has to remember. which would be your hardware configurations, onboot password, clock, plug-n-pray^H^H^H^Hplay, and a few other things in your bios.
most likely what's happening is your computer does an NVRAM check, and then scans your SDRAM just to make sure there are no problems, errors, compatibility issues, or changes with that, and it's showing up on the screen close together so it looks like the same thing.
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kuru
'dancing is the vertical expression of horizontal desire.'
-robert frost