ASRock have used their usual format of UEFI which contains all the features we would usually look for. There is even a built in utility for flashing the BIOS to the latest version which simplifies the process enormously.
Being a Mini-ITX motherboard, we wouldn't expect a substantial overclock from the Z68M-ITX/HT. While there are some overclocking options in the BIOS, we are very limited with what we can do. The most restricting omission is the lack of any voltage controls with the exception of DRAM voltage.
We settled on a turbo-mode overclock of 4.3 GHz with our Intel Core-i5 2500K as the motherboard doesn't allow you to overclock the standard CPU multiplier. This was achieved with a turbo multiplier of 43x, leaving the baseclock at 100 MHz. We had to use stock voltage as we weren't able to adjust the voltage.