Digital Equipment Prioris HX590 DP, Руководство по техническому обслуживанию

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Digital PRIORIS HX590 & HX590 DP Server Devic Mapping
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Chapter 5 Device Mapping
This section provides a series of tables listing mapping and address information related to computer memory
and various main logic board devices (keyboard controller, interrupt controller, DMA controller, etc.).
The computer's memory and address locations are allocated at the factory to operate within a standard PC
environment. However, due to the number of optional devices and/or expansion boards that are available,
sometimes memory and address locations need to be changed. For example, some network expansion boards
require a specific memory location. If that location is already allocated, a memory conflict results and the
expansion board will not operate as expected. Note that some memory, I/O and interrupt locations can be
changed using the BIOS Setup utility.
CAUTION
Before changing any memory or address location, refer to the documentation supplied
with the optional device, expansion board, or software application and make sure
adequate information is available.
CPU Memory Address Map (Full Range, 590 CPUs)
Range Function Notes
0 KB to 512 KB
Main memory PC compatibility range
512 KB to 1024 KB Main memory PC compatibility range
(EISA/ISA memory lower limit)
1 MB to 16 MB
Main memory
Memory space gap ISA memory upper limit
16 MB to 512 MB Main memory Computer memory upper limit
512 MB to 4 GB PCI memory