Motherboards are the heart of any machine. As we so often prove here at OC3D Towers, the benefit of a great motherboard to your system, or indeed the problems caused by a poor one, cannot be overstated.Because of the rather fiddly nature of switching them around, when compared to processors, graphics cards and the like, most people tend to upgrade only if they are changing chipset or socket, rather than when a better model arrives.This makes it doubly important to not only buy a good motherboard in the first place, because it will be with you for such a long time, but also to buy one that will last the journey.Finding one "built to last" isn't as easy as it sounds. Most manufacturers will happily tell you about the overclocking prowess of their latest creation, very few will mention the longevity.This neatly brings us to the Asus X58 Sabertooth. This has been designed, and is marketed, almost solely for its long-lasting properties, over and above any overclocking abilities or trumpeting about the latest technologies.That isn't to say it's not bursting with them anyway, as we'll find out soon enough. Firstly, let's see what we have our hands on.