8-4 Specifications
8.1.5 System Memory Map
Size Memory Address System Function
256 KB FFFC0000h to FFFFFFFFh System ROM
3839 MB 10000000h to FFFBFFFFh PCI Memory Expansion
255 MB 00100000h to 0FFFFFFFh HOST or PCI Memory Expansion
128KB 000E0000h to 000FFFFFh System ROM
96 KB 000C8000h to 000DFFFFh ISA/PCI option ROMs
32 KB 000C0000h to 000C7FFFh Video ROM
128 KB 000A0000h to 000BFFFFh Video RAM
640 KB 00000000h to 0009FFFFh Base Memory
All memory above the first 256 MB is non-cacheable. All PCI memory is non-cacheable.
8.2 Drives
8.2.1 Diskette Drive
1.44 MB
Size and Capacity
Size.
High Density
Low Density
3.5 inches
1.44 MB
720 KB
Compaq Spare Part Number 179161-001
Light Green
Height 1 inch
Bytes per Sector 512
Sectors per Track
High Density
Low density
18
9
Tracks per Side
High Density
Low Density
80
80
Read/Write Heads 2
Average Seek Time (Mb/s)
Track-to-Track (high/low)
Average (high/low)
Latency Average (ms)
3/6
94/173
100
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