Well I got both of my sticks for 32 bucks. I think I have some of the earliest PC2100 sticks from crucial so mine are probably just crappy. I read the reviews over at newegg and as you go on earlier into 2002, you will see not as many people reporting such high fsb. A lot of them are in the 150 range. I did find out that with 1 of my sticks I can at least boot up into windows at 166 while with only the other in, my PC just reboots.

So all in all, it depends on WHEN you bought your crucial PC2100 ram .