mt new build posted and in the bios it shows 5 5 5 18 2t spec for this is 4 4 4 12 2t and i believe its running at 1.8 v spec is 2 or 2.1 .i have 4 1gb sticks ddr2 6400 .should i leave it at auto or change to the factory spec ? will this be a problem seeing as its 4 1gb sticks? all new to me don't want to mess it up thanks.