4-28 Using Your NEC Versa
9.
Replace the NEC Versa components in the following
order.
Snap the LED guard back into place.
Gently reposition the keyboard.
Slide the speaker caps from the sides of the system
over the speakers.
10.
Run the Setup program to register the new memory
installed.
Reviewing the Memory Map
The system supports system and video shadowing, both
controlled through complementary metal oxide semiconduc-
tor (CMOS). The system supports BIOS as a cacheable
area with write protection. The following table shows the
system's memory map.
Memory Map
MEMORY SPACE
SIZE
FUNCTION
00000000h-0009FFFFh
640 KB
Base Memory
000A0000h-000AFFFFh
64 KB
Video Memory (graphics)
000B0000h-000B7FFFh
32 KB
Upper Memory Block (UMB)
000B8000h-000BFFFFh
32 KB
Video Memory (text)
000C0000h-000CBFFFh
48 KB
Video BIOS
000CC000h-000D0FFFh
20 KB
PCMCIA Window (available as UMB
in Windows '95)
000D1000h-000E3FFFh
76 KB
Upper Memory Block (UMB)
000E4000h-000FFFFFh
128 KB
System BIOS ROM
00100000h-02FFFFFFh
47 MB
Extended Memory