I have a Biostar MB I bought from Amazon from what I can tell the model is P896AM48 -R02 VER 6.1 On the box the stickers says Viotech 3100+ and on the MB pcb also. It's suppose to have a VIA C7D Nano CPU embedded. The owners manual says so. I asked, in an email, to Biostar techsupport why I couldn't install an 64 bit Ubuntu OS? Biostar tech support thinks it's an Intel Atom? So do I have a 64 bit CPU? The owners manual has one line about 64 bit in the CPU section that it is 64 bit memory. I read in my search for 64 bit C7D that it's only in the Nano version of the C7D.