1M x 72 Bit ECC dram Module unbuffered 1M x 64 Bit dram Module unbuffered From old datasheet system 3.3V 1M x 64-Bit EDO-dram Module 3.3V 1M x 72-Bit EDO-dram Module 1M X 72 EDO dram MODULE, 60 ns, DMA168 3.3V 1M x 64-Bit EDO-dram Module 3.3V 1M x 72-Bit EDO-dram Module 1M X 64 EDO dram MODULE, 60 ns, DMA168