AMI Mark IV Screamer, Manual

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Step 8 Install Adapter Cards
The Mark IV board contains several peripheral controllers. For
maximum efficiency, these controllers should be used instead
of adapter cards. The board supplies controllers for 2 serial, 1
Centronics-compatible parallel, and floppy disk drives. Use the
AMI Hi-Flex BIOS Setup to disable the controllers if you do not
want to use them.
The AMI 80386/80486 Mark IV Screamer uses standard adapter
cards. The cards can be any IBM compatible 8-bit or 16-bit
Adapter Card. These cards plug into the expansion slots on the
AMI 80386/80486 Mark IV Screamer.
In addition to the normal expansion slots, the AMI 80386/80486
Mark IV Screamer provides one proprietary connector for the
AMI 80486/Coprocessor Adapter Board.
The AMI Mark IV motherboard provides full compatibility with
all IBM XT or AT compatible adapter cards. It will also take 16
adapter cards. The AMI Mark IV motherboard has seven 16-bit
AT-Compatible slots and one 8-bit ISA (XT compatible) slot. The
slots are numbered on the motherboard from Slot 1 through
Slot 7. The AT slots can accept 8/16 bit ISA (XT or AT
compatible) adapter cards. The slots are described below:
If using an adapter card disk controller, install it in the 16-bit
slot closest to the keyboard connector. Installing the disk
controller in this slot improves the timing margin slightly. The
other slots can then be used on a best fit basis for the other
cards.
In addition to the normal expansion slots, the AMI 80386/80486
Mark IV Screamer has a proprietary connector for the AMI
80486/Coprocessor Adapter Board.
16-bit Adapter Card Slots
JA1-JA9, JA2-JA10, JA5-JA11, JA6-JA12, JA7-JA13, and JA8-JA14
are 62+36 pin expansion slot connectors that can be used for
either 16-bit or 8-bit adapter cards.
8-bit Adapter Card Slots
JA3 and JA4 are 62 pin expansion slot connectors used for 8-bit
adapter cards.