Gigabyte GA-990FXA-UD7 mainboard didn’t participate in overclocking tests, because it can only lower the CPU frequency below the nominal value. In fact, it is possible to set the CPU frequency in the BIOS above the nominal value, but there is no way to guarantee that the CPU will actually work at the increased frequency and not at the lowered to 3.3 GHz. At least not until they add “HPC Mode” support to their BIOS. As for the other two mainboards, the Hyper-Transport bus frequency on them remained at the nominal 2600 MHz, the North bridge frequency was increased from 2200 to 2400 MHz and the memory frequency – to 1866 MHz. However, Asus mainboard allowed us to overclock our test processor to 4.5 GHz, while on MSI mainboard we had to stop 4.3 GHz that is why it is behind in all tests. The lag is quite noticeable, but not critical, and it never exceeds 4.5%.