MSI Z87 XPOWER - MS-7811 BIOS 8MB Ver.170 - Enhanced EIST function when use non turbo boost CPU. - Improved USB device compatbility. - Improved CPU G3258 compatibility. - Improved PS2 device compatibility when "MSI Fast Boot" is enabled. You must use one of the following methods to update this BIOS. - Use MFlash to update "BIOS + ME" - Use MSI LiveUpdate