7–18
Maintenance and Service Guide
Specifications
Table 7-13
System Memory Map
Size
Memory Address
System Function
640 KB
00000000 - 0009FFFF
Base memory
128 KB
000A0000 - 000BFFFF
Video memory
128 KB
000C0000 - 000DFFFF
Video BIOS and other Optional ROM
128 KB
000E0000 - 000FFFFF
System BIOS
2047 MB
00010000 - 7FFFFFFF
Extended memory
1 GB
80000000 - BFFFFFFF
PCI Bus
32 MB
C0000000 - C1FFFFFF
Video memory (direct access)
991 MB
C2000000 - FFF00000
PCI Bus
1 MB
FFF00000 - FFFFFFFF
System BIOS