User Guide

Basics Memory - 49
board also contains a video memory expansion slot that
accepts a Small Outline DIMM (SO-DIMM) to increase video
memory up to a maximum of 6 MB. Apple supports a 4 MB
SGRAM SO-DIMM that is 32-bit wide, 144-pin, fast-
paged, 83 MHz/12 ns cycle time or faster.
Important:
Use only SGRAM SO-DIMMs. Never use the 256K
or 512K video memory DIMMs used in older Macintosh
computers.