PCShopTalk posted a review on the ASRock X58 Extreme Motherboard

The VRM and X58 chipset cooling solutions are linked together with a heatpipe; I do not consider this a very good solution because, as we already know, the X58 chipset is very hot also, like the VRM, and when we overclock the system and they will transfer the heat from one to another. I would have preferred this board to have some bigger heatsinks, with one or two heatpipes between the VRM and the X58 chipset.

ASRock X58 Extreme Motherboard Review