The only issue is a mechanical one - at 305 by 244 millimetres, this is an unusually large motherboard. It's got the standard ATX mounting screw holes, but it may be a tight fit in smaller cases. Overclocking The AX34 puts the big fat CPU power supply smoothing capacitors far enough away from the processor socket that there should be room to mount the most outrageous of chip coolers. And you may well have cause to do so. To encourage sped-up CPUs to keep on trucking, you can adjust the CPU voltage from 1.3V to 2.05V in 0.05 volt increments.
Higher voltage means more heat.
AOpen are rather more forward about the overclocking potential of their products than most other manufacturers. There's a whole section of the manual dedicated to AOpen's confidence about this board being pretty darn likely to run fine at 150MHz FSB, provided your CPU can handle it. This seems simple enough, but changing the FSB also changes the speeds at which other buses in the computer run. High speed operation of a complicated piece of electronics full of conductive traces in complex patterns, without interference problems, is tricky. 150MHz is a big fat overclock, if you start with a 100MHz FSB CPU, like the lower cost Pentium IIIs.