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Configuration of RAM SO-DIMMs

Table 4-6 shows information about the different sizes of SDRAM devices used in the memory modules. The first two columns show the memory size and configuration of the SO-DIMMs. The next two columns show the number and configuration of the SDRAM devices making up the memory modules.

Table 4-6 Sizes of RAM expansion modules and devices

SO-DIMM		SDRAM Devices
Size	Configuration	Number	Configuration	Banks
16 MB	2 M x 64	2	2 M x 32	1
32 MB	4 M x 64	4	4 M x 16	1
32 MB	4 M x 64	4	2 M x 32	2
64 MB	8 M x 64	8	8 M x 8	1
64 MB	8 M x 64	8	4 M x 16	2
64 MB	8 M x 64	4	8 M x 16	1
128 MB	16 M x 64	8	16 M x 8	1
128 MB	16 M x 64	8	8 M x 16	2
256 MB	16 M x 64	16	16 M x 8	2
256 MB	16 M x 64	16	8 M x 16	4
256 MB	32 M x 64	8	32 M x 8	1
256 MB	32 M x 64	8	16 M x 16	2
512 MB	32 M x 64	16	32 M x 8	2
512 MB	32 M x 64	16	16 M x 16	4

Note

The PowerBook computer does not support memory interleaving, so installing two SO-DIMMs of the same size does not result in any performance gain.