非易失性BIOS存儲器

非易失性BIOS存储器是指个人电脑主板上用于存储BIOS设置的小型存储器。传统上它又被称为CMOS RAM。CMOS RAM已被集成到南桥芯片组中，因而它已不是主板上的独立芯片，同時南桥也被集成到平台路徑控制器中。CMOS RAM的电池一般为CR2032锂钮扣电池。

参考
外部链接

• [http://pcsupport.about.com/od/termsc/g/cmos.htm Definition of CMOS & CMOS Batteries]
• [http://bochs.sourceforge.net/techspec/CMOS-reference.txt CMOS memory map (for Bochs PC emulator)]
• [https://www.amazon.com/Battery-Lithium-ML1220-RECHARGEABLE-BATTERY/dp/B005J1UC30 CMOS rechargeable Battery 3V Lithium, with cable]
• [https://www.youtube.com/watch?v=0q2RIaCICKU How to replace dead CMOS battery and configure BIOS settings] (video).
• [https://www.youtube.com/watch?v=MTg8qhWKNpA Tutorial: How to replace the CMOS battery in your laptop]
• [http://www.computerhope.com/issues/ch000239.htm How to replace the CMOS battery]