This can be the problem I had experiment. When I build the system up, with my Athlon 1200 B (100Mhz BUS), I supposed it could go to 1333Mhz (10x133mhz) just like it did in my previous ASUS A7V133, however the Dragon refused to turn on almost on any overclocking setting. But not only that, after it hangs, it never turn on without reseting the CMOS (with the jumper procedure). I don't undertand wy it can't turn on in safe settings after shutt down and up the power button, as the ASUS. However, when I change it for the ASUS A7266-E (paying the diference of course!), it accepted the same setting of the A7V133. The extrange thing is that the Dragon+ and the ASUS share the same BIOS settings, perhaps a BIOS upgrade may help.