All models are based on the Tanzania logic board, which was co-developed by Apple and Motorola.
Supports only 3.3 volt EDO (extended data out) DIMMs. It does not support interleaved memory. The three DIMM sockets are NOT identical. The first socket can only accept up to 32 MB DIMMs. The other two sockets can accept up to 64 MB DIMMs. The maximum memory is therefore 160 MB.