Answer

The definition of “Above 4G decoding” is to allow the user to enable or disable memory mapped I/O for a 64-bit PCIe device to 4GB or greater address space. Please enable this function when using multiple graphics cards for cryptocurrency mining.

Models

B250M GAMING PRO, X370 GAMING PRO CARBON AC, B250M PRO-VD, H270I GAMING PRO AC, X370 GAMING PRO, Z270 GAMING PRO, Z270 PC MATE, H270M BAZOOKA, Z270 TOMAHAWK OPT BOOST, Z270 MPOWER GAMING TITANIUM, Z270I GAMING PRO CARBON AC, X370 SLI PLUS, Z270 KRAIT GAMING, B250M MORTAR, B250 GAMING PRO CARBON, Z270 GAMING PRO CARBON, Z270 TOMAHAWK ARCTIC, B250M BAZOOKA, H270-A PRO, Z270 GAMING M7, B250M BAZOOKA PLUS, B250M PRO-VDH, Z270 SLI, H270M MORTAR ARCTIC, B250I GAMING PRO AC, H270 GAMING M3, H270 GAMING PRO CARBON, Z270-A PRO, X370 GAMING PRO CARBON, Z270 GAMING PLUS, Z270 CAMO SQUAD, X370 KRAIT GAMING, X370 XPOWER GAMING TITANIUM, B250M MORTAR ARCTIC, B250M PRO OPT BOOST, Z270 TOMAHAWK, Z270-S02, B250 PC MATE, Z270M MORTAR, Z270 XPOWER GAMING TITANIUM, H270 TOMAHAWK ARCTIC, B250 GAMING M3, B250I PRO, B250M BAZOOKA OPT BOOST, Z270 GAMING M5, X370 GAMING PLUS, B250M PRO-VH, Z270 GAMING M3, Z270 GAMING M6 AC, B250 KRAIT GAMING, H270 PC MATE, Z270 SLI PLUS