For 51 R1, this should suffice:

• The ALX-Files: Area 51 R1 Motherboard Swap Asus 4770k USB3.0

Summer 2016 New Arrivals

X99A Gaming Se7en

Area-51 GroomLake Edition

landingthis week: ROG Maximus VIII Hero | 6700k | H100i using my ax1200i swap cables

51 R2, posts / links, advice, uppers & downers here:

• Area 51 r2 - swap to a new motherboard, is it possible?
• Alienware area 51 R2 Motherboard upgrade?

You'll have to research ATX & E-ATX boards that support kool changes such as you're after. Always purchase hardware from a source that offers a liberal return policy