Technical Reference

Table 9 lists the system memory map.

Table 9. System Memory Map

Address Range

Address Range

 

 

(decimal)

(hex)

Size

Description

 

 

 

 

1024 K - 8388608 K

100000 - 1FFFFFFFF

8191 MB

Extended memory

 

 

 

 

 

960

K - 1024 K

F0000 - FFFFF

64 KB

Runtime BIOS

 

 

 

 

 

896

K - 960 K

E0000 - EFFFF

64 KB

Reserved

 

 

 

 

 

800

K - 896 K

C8000 - DFFFF

96 KB

Potential available high DOS

 

 

 

 

memory (open to the PCI bus).

 

 

 

 

Dependent on video adapter used.

 

 

 

 

 

640

K - 800 K

A0000 - C7FFF

160 KB

Video memory and BIOS

 

 

 

 

 

639

K - 640 K

9FC00 - 9FFFF

1 KB

Extended BIOS data (movable by

 

 

 

 

memory manager software)

 

 

 

 

 

512

K - 639 K

80000 - 9FBFF

127 KB

Extended conventional memory

 

 

 

 

0 K - 512 K

00000 - 7FFFF

512 KB

Conventional memory

 

 

 

 

 

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Intel DG33BU specifications System Memory Map, Technical Reference, Address Range Decimal Hex Size Description