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Line 11: The chipset built-in NVRAM capacity is typically 256 [[byte]]s.<ref name="100Series" /> For this reason, later BIOS implementations may use a small portion of BIOS flash ROM as NVRAM, to store setup data.<ref>http://rom.by/files/AMIBIOS8-Flash-Recovery-Whitepaper.pdf</ref> Today's [[UEFI]] motherboards use [[NVRAM]] to store configuration data (NVRAM is a portion of the UEFI flash ROM), but by many [[OEM]]s' design, the UEFI settings are still lost if the ~~sex~~ CMOS battery fails.<ref>{{Cite web\|title=UEFI NVRAM - OSDev Wiki\|url=https://wiki.osdev.org/UEFI_NVRAM\|access-date=2020-09-11\|website=wiki.osdev.org\|df=dmy-all}}</ref><ref>{{Cite book\|chapter-url=https://media.springernature.com/original/springer-static/image/chp%3A10.1007%2F978-1-4842-6106-4_4/MediaObjects/488723_1_En_4_Fig6_HTML.png\|doi = 10.1007/978-1-4842-6106-4_4\|chapter = Firmware Resiliency: Detection\|title = Building Secure Firmware\|year = 2020\|last1 = Yao\|first1 = Jiewen\|last2 = Zimmer\|first2 = Vincent\|pages = 115–162\|isbn = 978-1-4842-6105-7\| s2cid=242541772 }}</ref> =={{anchor\|Rechargeable CMOS battery}}CMOS battery==

Nonvolatile BIOS memory: Difference between revisions