HP Vectra XU 6/XXX HP Vectra XU6/150 PC - User’s Guide - Page 97

The Pc's Memory Map

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Typical Power Consumption/Availability for ISA Accessory Slots +5 V +12 V - 5 V -12 V 1 A limit per slot (limited by system board) 0.2 A limit per slot (limited by system board) 0.2 A total power limit (limited by power supply) 0.5 A total power limit (limited by power supply) Typical Power Consumption/Availability for PCI Accessory Slots +3.3 V +5 V +12 V -12 V 2.5 A maximum per slot 2.5 A maximum per slot 0.2 A maximum per slot 0.2 A maximum per slot There is a maximum per-slot limit of 15 W between all supply rails. THE PC'S MEMORY MAP Memory Area Memory Range Hexadecimal Address Range Extended Memory: 1 MB to 256 MB Extended memory 1024 KB upward 01000 to 0F0000 Conventional Memory: 0 KB to 1024 KB (1 MB) 384 KB Reserved Memory Area 960 KB to 1024 KB 0F0000 to 010000 896 KB to 960 KB 0E0000 to 0F0000 800 KB to 896 KB 0C8000 to 0E0000 640 KB Base Memory Area 768 KB to 800 KB 640 KB to 768 KB 0 KB to 640 KB 0C0000 to 0C8000 0A0000 to 0C0000 09F000 to 0A0000 - - 0500 to 0700 0400 to 04FF 0000 to 03FF Used By Windows Applications 64 KB BIOS area 64 KB (available) 96 KB available for accessory boards 32 KB Video BIOS Area 128 KB Video Memory Area Extended BIOS Data Area User Application Area MS-DOS Operating System MS-DOS Temp Buffer BIOS Data Area Interrupt Vector Table

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Typical Power Consumption/Availability for ISA Accessory Slots
+5 V
1 A limit per slot (limited by system board)
+12 V
0.2 A limit per slot (limited by system board)
- 5 V
0.2 A total power limit (limited by power supply)
-12 V
0.5 A total power limit (limited by power supply)
Typical Power Consumption/Availability for PCI Accessory Slots
+3.3 V
2.5 A maximum per slot
+5 V
2.5 A maximum per slot
+12 V
0.2 A maximum per slot
-12 V
0.2 A maximum per slot
There is a maximum per-slot limit of 15 W between all supply rails.
THE PC’S MEMORY MAP
Memory Area
Memory Range
Hexadecimal
Address Range
Used By
Extended Memory: 1 MB to 256 MB
Extended
memory
1024 KB upward
01000 to 0F0000
Windows Applications
Conventional Memory: 0 KB to 1024 KB (1 MB)
384 KB
Reserved
Memory Area
960 KB to 1024 KB
0F0000 to 010000
64 KB BIOS area
896 KB to 960 KB
0E0000 to 0F0000
64 KB (available)
800 KB to 896 KB
0C8000 to 0E0000
96 KB available for accessory
boards
768 KB to 800 KB
0C0000 to 0C8000
32 KB Video BIOS Area
640 KB to 768 KB
0A0000 to 0C0000
128 KB Video Memory Area
640 KB Base
Memory Area
0 KB to 640 KB
09F000 to 0A0000
Extended BIOS Data Area
—
User Application Area
—
MS-DOS Operating System
0500 to 0700
MS-DOS Temp Buffer
0400 to 04FF
BIOS Data Area
0000 to 03FF
Interrupt Vector Table