whether your memory is capable of DDR2-800 or 400mhz (the 400mhz that it lets you select is DDR2-800) i do not know

EDIT my 'chipset' temperature (which is the SB not the NB from what i hear) hovers at 46-53*C (actually i think my AS5 is finally baking in because this is the first time ive seen 47*C after its been on a while) (the 53*C was before this baking in so my max might even be lower) (this is the first time ive actually seen AS5 bake in, every cpu and chipset redo ive ever done temps never changed from day one until now)