IBM RT PC Options Installation page 126

TNL SN20-9864 (May 1987) to 75X0217
mM Personal Computer AT 512KB Memory Expansion Option
You can install two IBM Personal Computer AT 512KB Memory
Expansion Options in IBM 6150 and one in IBM 6151.
o
o
DDDDOODDOOOOOOOOOO~D 0 0
I]
D DO 00
DO
00 00 00 00
DO
0
~ ~ ~
0 I
DDDDDDD~D~~DD ~ ~~ ~D ~
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Note: The IBM Personal Computer AT 512KB Memory Expansion Option
should only be used in conjunction with the IBM RT PC Personal Computer
AT Coprocessor Option.
Section 5. Memory Options 5-5