Please help a newb

I have a Samsung tablet/pc thing and would like the refresh rate to be 40Hz. It has intel hd graphics 3000 and I understand this could be problematic, as the intel control panel only allows 60Hz and this is a 2nd gen intel (Sandy Bridge), so the custom intel driver may not work as it only seems available for 4th gen+. I want to have 40Hz (or even 50) at all costs, what are my options? I've been reading about DTD Calculator and HZTool but I don't know very much about them

Thanks for any advice