I'd be wary of using such a tall and heavy heatsink. Newegg lists the height as 145.5mm tall which is about 5.7", and the listed width of a sonata is 8.13", so you have ~2 inches of play room including the mobo standoffs. Make sure you put your sonata case on the side though, so the heatpipe works and it doesnt rip the socket out of your mobo.