User`s guide

System Resources8

System Memory Map8.1

Table 27 Memory Map

Address Range (decimal) Address Range (hex) Size Description

(TOM-192kB) – TOM N.A. 192kB ACPI reclaim, MPS and NVS area **

(TOM-8MB-192kB) – (TOM-192kB) N.A. 1 or 8MB VGA frame buffer *

1024kB – (TOM-8MB-192kB) 100000 – N.A N.A. Extended memory

869kB – 1024kB E0000 - FFFFF 128kB Runtime BIOS

832kB – 869kB D0000 - DFFFF 64kB Upper memory

640kB – 832kB A0000 - CFFFF 192kB Video memory and BIOS

639kB – 640kB 9FC00 - 9FFFF 1kB Extended BIOS data

0 – 639kB 00000 - 9FC00 512kB Conventional memory

Note

T.O.M. = Top of memory = max. DRAM installed

* VGA frame buffer can be reduced to 1MB in setup.

** Only if ACPI Aware OS is set to YES in setup.