When viewing system properties on the server itself, it shows the OS as Microsoft Windows Home Server Service Pack 2, there is no mention of the Power packs. The installed version is displayed on the server dashboard installed on clients, but I am also able to view the OS directly from the server. There was an on line push to the version 3.3. By 2010 unit were Intel powered and shipped with software OS disks showing the 3.0 version. The early units (the AMD powered EX47x) shipped with OS disks showing v1.0. The most common WHS v1 (the 32bit Server 2003 based OS) was bundled with the HP MediaSmart Server produced between late 2008 and late 2010. As you may be aware, mainstream support ended for the 32 bit WHS ended 1/2013. Power Pack 2 was released on 24 March 2009 and Power Pack 3 was released on 24 November 2009. Per wikipedia, Power Pack 1 for Windows Home Server was released on 20 July 2008. I'm not sure if this answers your questions or not so if you need more info please let me know. I will try to answer the best I can given that you are way ahead of me with the technical side of solutions.