It won't have a -5V rail, as far as I know, because it complies with the ATX12V v2.0 spec. Stupid bonehead move on MSI's part for employing a 24-pin connection (implying v2.0 compliance as a requirement) then asking for a -5V from the power supply.
I don't like the Fatal1ty version, I'd much rather prefer the AN8 Ultra, with the nForce4 Ultra chip and the silent heatpipe cooling on the said nF4 chip.