I'm just using the one stick of ram at the moment, but it doesn't make it too obvious if the ram i'm using i compatible...

The memory i'm using is... 1GB DDR 400MHz, PC3200, 2.5V, Non-Parity, Non-ECC, 184-pin

do you think this is too high spec for the motherboard?

also is it possible to have to high a wattage PSU?