BIOS Question:

Complementary metal oxide semiconductor (CMOS) refers to a chip inside your computer that saves your BIOS settings. As a result, the terms CMOS and BIOS are sometimes used interchangeably.

Advanced Configuration and Power Interface (ACPI) is an industry standard that defines power management features and other configuration information for computers. Some previous versions of BIOS do not support ACPI, and so the computer may not successfully enter advanced power modes such as sleep or hibernate. For more information, check the information that came with your computer or go to the computer manufacturer's website.