Specifications 9
Memory Map
The system supports system and video shadowing, both controlled through complementary
metal oxide semiconductor (CMOS). The system supports BIOS as a cacheable area with write
protection. The following table shows the system’s memory map.
System Memory Map
Memory Space
Size
Function
000000-0002FFh
768 bytes
BIOS Interrupt Vector Table
000300-0003FFh
256 bytes
BIOS Stack Area
000400-0004FFh
256 bytes
BIOS Data Area
000500-09FFFFh
639 KB
Applications Memory (used by the
OS, device drivers, TSRs, and all
DOS applications)
0A0000-0AFFFFh
64 KB
Video Buffer (EGA and VGA)
0B0000-0B7FFFh
32 KB
Video Buffer (monochrome, CGA
colour, VGA monochrome)
0B8000-0BFFFFh
32 KB
Video Buffer (CGA, EGA colour,
and VGA colour)
0C0000-0CBFFFh
64 KB
Video ROM (EGA and VGA)
0D0000-0DFFFFh
64 KB
Used by Adapter ROMs (i.e.,
network controllers, hard disk
controllers, SCSI host adapters)
0E0000-0EFFFFh
64 KB
Used by System ROM adapters
(i.e., network controllers with boot
capability)
0F0000h-0FFFFFh
64 KB
System AMIBIOS (includes Setup
and hard disk drive utilities)
100000h-1FFFFFF
32 MB
Built-In Extended Memory
2000000-5FFFFFF
up to 256 MB
Extended Memory
Summary of Contents for Versa LXi Series
Page 45: ...3 Disassembly and Reassembly n Required Tools and Equipment n Disassembly n Reassembly ...
Page 67: ...4 System Board Layout n LED Status Board n Audio Board n Connector Board n Main Board ...
Page 68: ...4 2 System Board Layout LED Status Board Audio Board Connector Board Main Board ...
Page 72: ...6 Troubleshooting n Quick Troubleshooting n Helpful Questions ...