I'm not certain if I have to set the voltage to 2.0v to get the 533. They're separate settings in the BIOS, I haven't tried setting only the clock.

On the Crucial site, out of 23 reviews the average rating is 2/5. Lots of people mentioning errors and BSOD. Great. MOst people claiming they can run relatively error free at 400MHz.

This is starting to seem like under-spec memory being falsely advertised as higher-end parts. Not cool to advertise DDR2-800 as DDR2-1066. The funny thing is that they also have DDR2-800 Ballistix modules. Are those 300MHz parts in reality?