20 lines
1.0 KiB
Plaintext
20 lines
1.0 KiB
Plaintext
AST RESEARCH TECHNICAL BULLETIN TB-0079 4-1-85
|
|
|
|
|
|
PROPER USE OF THE AST MP MINI
|
|
|
|
|
|
When expanding the memory of the IBM PC or compatibles with the
|
|
AST MP Mini card, it is important to remember that no matter what
|
|
PC is used, there must be exactly 256KB of user RAM installed
|
|
below the AST MP Mini. This is because the MP Mini has a fixed
|
|
starting address of 0040:0000 Hexadecimal. The ending address is
|
|
A000:0000 Hexadecimal. This means that no other expansion card
|
|
may address within the 256KB-640KB range of user RAM, even if the
|
|
MP Mini is not fully loaded with 256KB and the optional Mini Pak.
|
|
|
|
To conclude, the PC must have 256KB on the system board, or the
|
|
combination of the system board and another expansion card,
|
|
before the MP Mini can be installed. There must not be any other
|
|
RAM resident in the PC between the 256KB and 640KB range.
|
|
|