Ibm Rt Pc Extended Monochrome Graphics Display Adapter - IBM RT User's Setup Manual

IBM RT PC Extended Mo n och ro me Graphics Display Adapter
You can install one IBM Advanced Color Graphics Display
Adapter in a system unit.
You can install this adapter in adapter slot 2, 4, 5, or
Installing:
7 in IBM 6150 and in slot 2, 3, or 4, in IBM 6151, whichever is
available. See the system unit diagram for the correct adapter slot.
7-16 Options Installation