<Li> Real - time clock . The real time clock provides a persistent time account . </Li> <Li> Power management (APM and ACPI). The APM or ACPI functions provide methods and signaling to allow the computer to sleep or shut down to save power . </Li> <Li> Nonvolatile BIOS memory . The system CMOS (BIOS configuration memory), assisted by battery supplemental power, creates a limited non-volatile storage area for system configuration data . </Li> <Li> AC'97 or Intel High Definition Audio sound interface . </Li>

Which two motherboard components are directly managed by the southbridge chipset