Foxconn 865M01 series User Manual page 54

Memory
This is a Display-Only Category, determined by POST (Power On Self Test) of
the BIOS.
Base Memory The BIOS POST will determine the amount of base (or
conventional) memory installed in the system.
Extended Memory The BIOS determines how much extended memory
is present during the POST.
Total Memory Total memory of the system.
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Chapter 3
865M01G/PE/GV User Manual
BIOS Description