If you're thinking of trying to overclock abobve 148 fsb, then its
better if you go for Micron Cas 2 pc-133 sdram instead of cas 2. For
cas 2 to run at over 148 fsb you may require to tweak the vio from the default 3.4 V to 3.6V. And as Bricolo said, the i815e chipset doesn't support ecc memory.