I have decided to hold off before upgrading my motherboard for a bit. I have found a decent deal on a 3.06mhz mobile cpu though and am seriously considering it. My worry is that this will not work properly in a desktop. Seller posted that it will without any problems. I have a socket 478 ASUS branded SONY board currently running a 2.4. I know the board supports HT and since this is the only model that supports it I should be fine....still weary though. I'd hate to have to turn around and re-sell it There are two models on the 3.06 with 533 bus. The normal desktop one only has a 512k cache and this one (the mobile edition) has a 1mb cache.