ASUS A8V-VM SE Overclocking

[Tomato Source]

Hi

I recently bought an ASUS A8V-VM SE motherboard for my x2 3800+ 939. It was the only matx 939 motherboard in stock for miles so I had little choice. However if I knew it had overclocking options disabled in the BIOS I would have given it a pass.

Can anyone suggest a way to overclock this motherboard? I'm not looking for anything stellar, I'll be happy with 240MHz.

Thanks,
Tomato source