Foxconn P4M800P7MA series User Manual page 32

Memory
This is a Display-Only Category, determined by POST (Power On Self Test) of
the BIOS.
Base Memory
Extended Memory The BIOS determines how much extended memory
Total Memory
24
The BIOS POST will determine the amount of base (or
conventional) memory installed in the system.
is present during the POST.
Total memory of the system.
Chapter 3 BIOS Description