thanx for the quick replies dasdf and stork.
I do have 4 memory sticks installed and they are not supported officially by the motherboard (all 32gb do show up though in the bios) and i do not think my psu is a haswell supported one either so i think my setup will be a good example to further asses this experiment so I will first try to install mavericks with the setup as is and see if that works (unless you think this will cause other issues down the line?)
i will unplug the win7 ssd though
btw, should i do any other preliminary testing/benchmarks on windows to make sure the system is ok before installing osx?
and do I need to adjust anything in the bios to prep for the osx install? (the sata ports were set to ahci by default when i installed windows7)