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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|
|
|
|
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