As we handled the board lay-out, we're going to handle the bios option: restrict us to the things we need in order to tune our system.
Right after you've pressed F2 to enter the bios, you'll find yourself looking at the bios main page.
The temperature monitor isn't that elaborate.
The tweaking center of the board, only the two first pages are really interesting.
First issue when overclocking: the bios only supports up to 340FSB. In addition, it's not possible to change the multiplier if you have an unlocked processor.
DDR1 memory timings
DDR2 memory timings
Most voltages can only be set to low/normal/high. Cpu voltage cannot be changed!
Advanced memory configuration tab. We've not looked into this more thoroughly, but this may be the key to tune the memory to higher speeds.
Advanced host configuration, here you can tune the chipset. Please enable the first option (Pipeline DRQCTL) as it gives noticeably higher memory bandwidth.
Who says Asrock doesn't supply lots of tuning options?