Hello there, Iâ€™ve read that NSLU2 main processor is a Intel IXP420 rated for 266MHz but with is downclocked to 133 MHz by Linksys. There is a hardware modification to de-underclock the CPU to 266 MHz. It is explained in this article (Iâ€™m sure you already know it). Unfortunately, This mod voids NSLU2's warranty! According to is the article, the CPU included in the NSLU2 manufactured after May 2006 runs at full speed (266 MHz). Is there a way to know when a NLSU2 was manufactured when itâ€™s still in its box in the store ? May be with the serial number (if it is written on the box) ? Any clue ? Thank you Regards Denony.