Apple powermac server g3 minitow Instruction De Maintenance
Basics
SGRAM Video Memory - 83
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 computers.