A and B are surely 168 pin SDRAM. Can you give me the numbers printed on the chips? They hold the key to performance and capacity. They should work with later P-II up to P4 around 1.4GHz and the same era AMD chips, depending on bus speed. The older chips would work with original Pentium up to PIII, maybe around 600MHz, same with like-era AMD. Again depending on bus speed.

Another Mark.

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