Which BIOS version is on that board and have you tested with another known working harddrive?
If that board has the latest BIOS then all Win8 features in the BIOS need to be disabled. I had endless troubles to get my -G43 going with a Win7 installation...
If that board has the latest BIOS then all Win8 features in the BIOS need to be disabled. I had endless troubles to get my -G43 going with a Win7 installation...