Compaq Presario 5070 - System Memory; System Dma

Compaq.com - Compaq Presario Maintenance and Service Guide - 5200 Series
United States December 10, 2002
Maintenance and Service Guide
Compaq Presario 5000, 5100, and 5200 Series Computers
MSG index Product Description Troubleshooting Illustrated Parts Catalog
Home Removal & Replacement Jumper & Switch Information Specifications
System
Power supply
Diskette
drive
Hard drives
DVD drive
CD drives
Mouse
Fax/modem
Zip drive
l
SPECIFICATIONS
System Specifications (continued)
General system specifications
Video memory
System interrupts
System I-O
System memory
System DMA
System Memory
Size Memory Address System Function
640 K 00000000 - 0009FFFF Base Memory
128 K 000A0000 - 000BFFFF Video RAM
32 K 000C0000 - 000C7FFF Video ROM
32 K 000C8000 - 000CFFFF Legacy USB Device Header (when legacy
support enabled)
64 K 000D000 - 000DFFFF Unused
48 K 000E0000 - 000EBFFF Unused (Not available for option cards. May
use for UMBs.)
16 K 000EC000 - 000EFFFF 16-bit cacheable, shadowable, read-only
memory. Not available for option cards.
64 K 000F0000 - 000FFFFF System BIOS ROM shadow image
15 M 00100000 - 00FFFFFF Standard Extended Memory
64 M 01000000 - 04FFFFFF Rest of Extended Memory
60 M 05000000 - 07FFFFFF Unused
512 K 08000000 - 0807FFFF Standard Direct Video Memory
512 K 08080000 - 080FFFFF Optional Direct Video Memory
1919 M 08100000 - 7FFFFFFF Unused
16 M 80000000 - 80FFFFFF Memory mapped I/O devices
~2000 M 81000000 - FDFDFFFF Unused/System ROM aliases
128 K FDFE0000 - FDFFFFFF System ROM (alias)
~32 M FE000000 - FFFDFFFF Unused
128 K FFFE0000 - FFFFFFFF System BIOS ROM
System DMA
Hardware System Function (Default) Alternate Mappings
DMA 0 ECP Parallel 1, 2, none
DMA 1 Entertainment Audio 0, 3, none
DMA 2 Diskette Drive none
DMA 3 Entertainment Audio 0, 1, none
DMA 4 Internally used for cascading
DMA 5 Available
DMA 6 Available
DMA 7 Available
privacy statement
legal notices
http://h18000.www1.hp.com/athome/support/msgs/5000/specdeta.html [12/10/2002 9:36:42 AM]