Intel H55, H57 Chipsets
 

The new chipsets are similar to Intel P55, but they let you use the integrated graphics core of the new Core i5, Core i3 and Pentium processors. On the other hand, they lack decent support for dual discrete graphics cards. Which of these solutions you need is up to you to decide.

http://ixbtlabs.com/articles3/mainbo...ipsets-p1.html