Whitehawk--
The 2:2:2:1 is not your RAM timings. They are not listed that way in your BIOS, and they are an impossible combination anyway. Your RAM timings are listed in another BIOS page (I think it is the third or fourth one down). Set the timings to "By SPD" for now. This is where they are anyway, probably, since that is the default. The "Game Accelerator Technology" settings are on the same page. Set them to Auto, Auto, Auto, Disabled, and Disabled (as previous poster mentions).
First of all, make sure you have a decent heatsink and fan, on the CPU. Second, the 1:1 ratio is the CPU:RAM fsb ratio. You want to keep that at 1:1 for now...once you have found the highest stable clock, then you can try 5:4. The FSB number controls the CPU. So when you change to 5:4, the CPU stays the same speed and the RAM gets slower. You have to push up the FSB by 125% to get the RAM back at your previous speed, and the CPU faster.
The reason you want to try 5:4 at all is because the CPU will probably be able to overclock higher than your memory.