VIA Technologies Zida BX983D User Manual page 24

Mainboard Installation
Drive A / Drive B
This category identifies the types of floppy disk drive A or drive B that have been installed in the computer.
Video
This category selects the type of adapter used for the primary system monitor that must match your video
display card and monitor. Although secondary monitors are supported, you do not have to select the type in
Setup.
Halt On
This category determines whether the computer will stop if an error is detected during power up. There are
different types of error can be configured in this category.
Total Memory
This category is display-only which is determined by POST (Power On Self Test) of the BIOS.
Base Memory
The POST of the BIOS will determine the amount of base (or conventional) memory installed in the
system. The value of the base memory is typically 640K for systems with 640K or more memory installed
on the motherboard.
Extended Memory
The BIOS determines how much extended memory is present during the POST. This is the amount of
memory located above 1MB in the CPU's memory address map.
Other Memory
This refers to the memory located in the 640K to 1024K address space. This is memory that can be used for
different applications. DOS uses this area to load device drivers to keep as much base memory free for
application programs. Generally, this area is used for Shadow RAM.
Page 24