SuperPi question

[Zenoth]

I'd like to know if the 32M test in SuperPi (I'm using SuperPi Mod 1.4) is considered a good benchmark for Memory stability ? I mean stability indeed, not really performance. If it passes the 32M bench, then does it mean that my Memory is stable, or is it irrelevant as far as stability is concerned ?

Edit: Also, do I need to run two separate instances ? (for my X2)