ASRock have developed a comprehensive UEFI which is one of the best out there, although not quite as feature filled as the ones we've seen on Asus motherboards. The interface is easy to navigate, letting us overclock the system in an easy to see manner.
Being a Mini-ITX motherboard, we weren't expecting to achieve a very significant overclock with the A75M-ITX. But, we were disappointed with the overclocking ability of the motherboard which is negligible at best. While it is possible to boot and load up windows with a substantial overclock, running any program to stress the system causes it to crash. Unfortunately, this also happened with a slight overclock; even a small bump in the baseclock of 5 MHz caused instability.