Works (with a little difficulty) on EVGA SLI Micro (121-BL-E756, LGA1366/X58 motherboard). The fancy-looking heatsink on the mobo just barely touches the edge of the Big Shuriken heatsink, but it goes on with a little persuasion
RAM slot closest to the motherboard is also covered by the heatsink, but if you put the RAM in first, you can still use the slot (assuming you don't have RAM with a tall heat spreader).
Cheers