It probably depends on which chips you get on the stick you wind up with. I have one stick of valueram PC-100 cas 2 that actually has infinion chips on it and it works great. Then, I tried to put a stick of PC-133 cas3 in my Soyo motherboard, and it won't run at all. It worked fine in my MSI-6309 board, so I guess it doesn't like the 66 MHz fsb of my Intel 810 chipset. By the way, it had Toshiba chips on it. I ahve heard that the Kingston Valueram comes with any kind of chips from Nanya to Toshiba to Hyundai to Micron to Samsung. It just depends. Good Luck!
Chuck