ASUS P5E3 Premium @ TweakTown
“Intel originally planned for the X38 chipset to be the big kahuna for the Core 2 platform, but unfortunately its extremely poor overclocking, heat generation and lack of support for the 1600MHz FSB made Intel go back and bring up a new chipset. X48 however is not actually a new chipset, rather a hand picked X38 silicon that works at higher FSB clock speeds along with a lower voltage draw than that of the X38. But this also means it carries a premium with it, thus Intel decided to give it X48 naming.”