AT&T 6300 Service Manual page 58

SYSTEM OVERVIEW
The Memory Expansion board is inserted in a 16-bit expansion slot
on the Bus Converter Board. The minimum amount of memory on
the Memory Expansion Board is 256 KB (128 KB in bank 0 and
128 KB in bank 1). This can be expanded up to 384 KB by
inserting chips into bank 2. The Motherboard must have
256-KB RAM before the Memory Expansion Board can tJe used.
Note:
If the Display Enhancement Boarq (DEB) is to be
installed, the recommended installation location is the first
16-bit expansion slot with the Memory Board in the second
16-bit expansion slot.
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