Here are some speed results for RAM according to Memtest86+ on some machines that I have run. Note that the reported speed varies between runs by a few percent. Thinkpad 600e PentiumII 400Mhz PC-66 RAM (2 DIMMs) 174MB/s Compaq P3-866MHz PC133 RAM (3 DIMMs, 2*128 + 256) 190MB/s Compaq Athlon 1GHz PC133 RAM (3 DIMMs)