Hmmm, Well I found the overclocking settings.
Heh.. I wouldn't try without making sure you got more headroom on your PSU. I'm thinking a 2KW server power supply.

and make sure you got plenty of cool ambient air going in.. cause it's going to be toasty coming out..
Looks like they are running them at 196.
Can you take a screen shot of what it looks like? That is to say is there a higher option setting that you can just remove the ###?