On the new memory I have seen listed for 168 pin that I have but are higher...say 256mb but operate on 133mhz so it seems like it would work but I would like to know for sure ...and do I just need one? remove the old one or old ones? I haven't looked inside there yet. Or any suggestions to get an old memory up a bit at least to 64MB . It says the cache is 64MB max...unless this newer memory improves more than that I don't know. but I suspect doubling to 64MB would be an improvement! Any advice or suggestions would be appreciated!