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AST RESEARCH TECHNICAL BULLETIN TB-0174 4-30-86
MP-MINI MEMORY ADDRESSING
It has been determined that there is potential for the MP-Mini to
cause memory errors under certain conditions.
These problems could occur when using the 256K MP-Mini
configuration (without the Mini-Pak).
The MP-Mini has no hardware method of determining where memory
addressing should stop if the MP-Mini is not fully configured
with 384K of RAM. The board is meant to start at an address of
256K and end at 640K. If any software application attempts to
establish the amount of memory available with only 256K of Ram
on the MP-Mini installed, a "parity check two" error could be
generated, locking the machine up.
One program where this occurs is with Norton Utilities' "SYSINFO"
program. This program checks to see what equipment is installed
in the PC. When it attempts to check memory size with a 256K MP-
Mini installed a "parity check two" error is generated.